FPCN11 CWTO 181930
Forecasts for Southern Ontario and the National Capital Region issued
by Environment Canada at 3:30 p.m. EDT Wednesday 18 June 2025 for
tonight Thursday and Thursday night.
The next scheduled forecast will be issued at 5:00 a.m. EDT Thursday.

City of Toronto.
Tonight..Showers ending before morning then cloudy with 30 percent
 chance of showers. Risk of a thunderstorm this evening and
 overnight. Local amount 10 to 20 mm. Wind becoming southwest 20 km/h
 gusting to 40 after midnight. Low 19.
Thursday..Cloudy with 30 percent chance of showers. Wind becoming
 southwest 20 km/h gusting to 40 in the morning then northwest 30
 gusting to 50 late in the afternoon. High 22. Humidex 27. UV index 6
 or high.
Thursday night..Cloudy. Becoming partly cloudy near midnight. Wind
 northwest 30 km/h gusting to 50 becoming light after midnight.
 Low 15.

Windsor - Leamington - Essex County.
Tonight..Showers becoming mixed with a few thunderstorms early this
 evening and ending late this evening then cloudy with 40 percent
 chance of showers. Risk of a thunderstorm. Wind becoming southwest
 30 km/h gusting to 50 early this evening. Temperature steady
 near 19.
Thursday..Cloudy with 30 percent chance of showers. Wind northwest
 20 km/h gusting to 40. High 23. Humidex 28. UV index 4 or moderate.
Thursday night..Partly cloudy. 30 percent chance of showers early in
 the evening. Wind becoming southwest 20 km/h gusting to 40 then
 light near midnight. Low 16.

Chatham-Kent - Rondeau Park.
Tonight..Showers becoming mixed with a few thunderstorms early this
 evening and ending late this evening then cloudy with 40 percent
 chance of showers. Risk of a thunderstorm. Wind northwest 50 km/h
 gusting to 80 becoming south 30 gusting to 50 early this evening.
 Low 19.
Thursday..Cloudy with 60 percent chance of showers. Wind southwest
 30 km/h gusting to 50 becoming northwest 20 gusting to 40 late in
 the morning. High 23. Humidex 27. UV index 6 or high.
Thursday night..Mainly cloudy. 40 percent chance of showers in the
 evening. Wind west 30 km/h becoming light in the evening. Low 16.

Sarnia - Petrolia - Western Lambton County.
Tonight..Showers becoming mixed with a few thunderstorms early this
 evening and ending late this evening then cloudy with 40 percent
 chance of showers. Risk of a thunderstorm. Local amount 20 to 30 mm.
 Wind becoming southwest 30 km/h gusting to 50 late this evening.
 Temperature steady near 17.
Thursday..Cloudy with 60 percent chance of showers. Wind southwest
 30 km/h gusting to 60. High 22. Humidex 25. UV index 6 or high.
Thursday night..Partly cloudy. 40 percent chance of showers in the
 evening. Wind northwest 20 km/h gusting to 40 becoming light after
 midnight. Low 15.

Watford - Pinery Park - Eastern Lambton County.
Tonight..Showers becoming mixed with a few thunderstorms early this
 evening and ending late this evening then cloudy with 40 percent
 chance of showers. Risk of a thunderstorm. Local amount 20 to 30 mm.
 Wind becoming southwest 30 km/h gusting to 50 late this evening.
 Temperature steady near 17.
Thursday..Cloudy with 60 percent chance of showers. Wind southwest
 30 km/h gusting to 60. High 22. Humidex 25. UV index 7 or high.
Thursday night..Cloudy with 40 percent chance of showers in the
 evening then partly cloudy. Wind northwest 20 km/h gusting to 40
 becoming light after midnight. Low 15.

Rodney - Shedden - Western Elgin County.
Tonight..Showers becoming mixed with a few thunderstorms early this
 evening and ending near midnight then cloudy with 40 percent chance
 of showers. Risk of a thunderstorm. Wind west 30 km/h becoming east
 20 early this evening then southwest 30 gusting to 50 late this
 evening. Temperature steady near 19.
Thursday..Cloudy with 60 percent chance of showers. Wind southwest
 30 km/h gusting to 50 becoming northwest 20 gusting to 40 late in
 the morning. High 23. Humidex 27. UV index 5 or moderate.
Thursday night..Partly cloudy. 40 percent chance of showers in the
 evening. Wind northwest 20 km/h gusting to 40 becoming light in the
 evening. Low 15.

St. Thomas - Aylmer - Eastern Elgin County.
Tonight..Showers ending after midnight then cloudy with 40 percent
 chance of showers. Risk of thunderstorms this evening and overnight.
 Wind northwest 30 km/h gusting to 50 becoming light early this
 evening. Wind becoming southwest 30 gusting to 50 late this evening.
 Temperature steady near 19.
Thursday..Cloudy with 60 percent chance of showers. Wind southwest
 30 km/h gusting to 50 becoming northwest 20 gusting to 40 late in
 the morning. High 23. Humidex 27. UV index 5 or moderate.
Thursday night..Mainly cloudy. 40 percent chance of showers in the
 evening. Wind northwest 20 km/h gusting to 40 becoming light in the
 evening. Low 15.

Strathroy - Komoka - Western Middlesex County.
Tonight..Showers becoming mixed with a few thunderstorms early this
 evening and ending near midnight then cloudy with 40 percent chance
 of showers. Risk of a thunderstorm. Local amount 15 to 25 mm. Wind
 becoming southeast 20 km/h this evening then becoming southwest 20
 gusting to 40. Temperature steady near 18.
Thursday..Cloudy with 60 percent chance of showers. Wind southwest
 20 km/h gusting to 40 becoming northwest 30 gusting to 50 in the
 afternoon. High 22. Humidex 25. UV index 4 or moderate.
Thursday night..Mainly cloudy. 40 percent chance of showers in the
 evening. Wind northwest 20 km/h gusting to 40 becoming light near
 midnight. Low 14.

London - Parkhill - Eastern Middlesex County.
Tonight..Showers becoming mixed with a few thunderstorms early this
 evening and ending near midnight then cloudy with 40 percent chance
 of showers. Risk of a thunderstorm. Local amount 15 to 25 mm. Wind
 becoming southeast 20 km/h this evening then becoming southwest 20
 gusting to 40. Temperature steady near 18.
Thursday..Cloudy with 60 percent chance of showers. Wind southwest
 20 km/h gusting to 40 becoming northwest 30 gusting to 50 in the
 afternoon. High 22. Humidex 25. UV index 4 or moderate.
Thursday night..Partly cloudy. 40 percent chance of showers in the
 evening. Wind northwest 20 km/h gusting to 40 becoming light near
 midnight. Low 14.

Simcoe - Delhi - Norfolk.
Tonight..Showers ending after midnight then cloudy with 40 percent
 chance of showers. Risk of thunderstorms this evening and overnight.
 Wind becoming southwest 30 km/h gusting to 50 late this evening.
 Low 19.
Thursday..Cloudy with 60 percent chance of showers. Wind southwest
 30 km/h gusting to 50 becoming northwest 20 gusting to 40 in the
 afternoon. High 23. Humidex 27. UV index 7 or high.
Thursday night..Partly cloudy. 40 percent chance of showers in the
 evening. Wind northwest 20 km/h gusting to 40 becoming light near
 midnight. Low 14.

Dunnville - Caledonia - Haldimand.
Tonight..Cloudy with 60 percent chance of showers this evening.
 Showers beginning late this evening then changing to 40 percent
 chance of showers after midnight. Risk of a thunderstorm this
 evening and overnight. Wind east 20 km/h becoming light early this
 evening. Wind becoming southwest 30 gusting to 50 late this evening.
 Low 19.
Thursday..Cloudy with 40 percent chance of showers. Wind southwest
 30 km/h gusting to 60. High 23. Humidex 28. UV index 7 or high.
Thursday night..Cloudy with 40 percent chance of showers early in the
 evening then partly cloudy. Wind northwest 20 km/h gusting to 40
 becoming light near midnight. Low 15.

Woodstock - Tillsonburg - Oxford County.
Tonight..Showers becoming mixed with a few thunderstorms early this
 evening and ending near midnight then cloudy with 40 percent chance
 of showers. Risk of a thunderstorm. Local amount 15 to 25 mm. Wind
 north 30 km/h becoming light early this evening. Wind becoming south
 30 this evening. Low 18.
Thursday..Cloudy with 60 percent chance of showers. Wind southwest
 30 km/h gusting to 50 becoming northwest 20 gusting to 40 in the
 afternoon. High 22. Humidex 27. UV index 4 or moderate.
Thursday night..Cloudy with 40 percent chance of showers in the
 evening then partly cloudy. Wind northwest 20 km/h gusting to 40
 becoming light near midnight. Low 14.

Brantford - County of Brant.
Tonight..Showers ending after midnight then cloudy with 40 percent
 chance of showers. Risk of a thunderstorm this evening and
 overnight. Local amount 10 to 20 mm. Wind north 30 km/h becoming
 light early this evening. Wind becoming south 30 this evening.
 Low 18.
Thursday..Cloudy with 40 percent chance of showers. Wind southwest
 30 km/h gusting to 50 becoming northwest 20 gusting to 40 in the
 afternoon. High 22. Humidex 27. UV index 7 or high.
Thursday night..Cloudy with 40 percent chance of showers early in the
 evening then partly cloudy. Wind northwest 20 km/h gusting to 40
 becoming light near midnight. Low 14.

Niagara Falls - Welland - Southern Niagara Region.
Tonight..Cloudy with 60 percent chance of showers this evening.
 Showers beginning late this evening then changing to 40 percent
 chance of showers after midnight. Risk of a thunderstorm this
 evening and overnight. Wind becoming south 20 km/h gusting to 40
 after midnight. Low 20.
Thursday..Cloudy with 40 percent chance of showers. Wind south
 20 km/h gusting to 40 becoming southwest 40 gusting to 60 in the
 morning. High 22. Humidex 27. UV index 7 or high.
Thursday night..Cloudy. 40 percent chance of showers early in the
 evening. Wind northwest 20 km/h gusting to 40 becoming light near
 midnight. Wind becoming southwest 20 before morning. Low 16.

St. Catharines - Grimsby - Northern Niagara Region.
Tonight..Cloudy with 60 percent chance of showers this evening.
 Showers beginning late this evening then changing to 40 percent
 chance of showers after midnight. Risk of a thunderstorm this
 evening and overnight. Wind becoming south 20 km/h gusting to 40
 after midnight. Low 19.
Thursday..Cloudy with 40 percent chance of showers. Wind south
 20 km/h gusting to 40 becoming southwest 40 gusting to 60 in the
 morning. High 23 with temperature falling to 19 in the afternoon.
 Humidex 29. UV index 7 or high.
Thursday night..Cloudy. 40 percent chance of showers early in the
 evening. Wind northwest 20 km/h gusting to 40 becoming light after
 midnight. Low 15.

City of Hamilton.
Tonight..Showers ending after midnight then cloudy with 40 percent
 chance of showers. Risk of a thunderstorm this evening and
 overnight. Local amount 10 to 20 mm. Wind becoming southwest 30 km/h
 gusting to 50 late this evening. Low 18.
Thursday..Cloudy with 40 percent chance of showers. Wind southwest
 30 km/h gusting to 60. High 22. Humidex 26. UV index 7 or high.
Thursday night..Cloudy with 40 percent chance of showers early in the
 evening then partly cloudy. Wind northwest 20 km/h gusting to 40
 becoming light near midnight. Low 15.

Burlington - Oakville.
Tonight..Showers ending overnight then cloudy with 30 percent chance
 of showers. Risk of a thunderstorm this evening and overnight. Local
 amount 15 to 25 mm. Wind northeast 20 km/h becoming southwest 20
 late this evening. Low 18.
Thursday..Cloudy with 30 percent chance of showers. Wind south
 20 km/h gusting to 50 becoming northwest 30 gusting to 50 in the
 afternoon. High 22. Humidex 27. UV index 6 or high.
Thursday night..Cloudy. Becoming partly cloudy near midnight. Wind
 northwest 30 km/h gusting to 50 becoming light after midnight.
 Low 16.

Halton Hills - Milton.
Tonight..Showers ending overnight then cloudy with 30 percent chance
 of showers. Risk of a thunderstorm this evening and overnight. Local
 amount 15 to 25 mm. Wind becoming southwest 30 km/h after midnight.
 Low 19.
Thursday..Cloudy with 30 percent chance of showers. Wind south
 20 km/h gusting to 40 becoming northwest 30 gusting to 50 late in
 the morning. High 22. Humidex 27. UV index 4 or moderate.
Thursday night..Cloudy. Becoming partly cloudy near midnight. Wind
 northwest 30 km/h gusting to 50 becoming light after midnight.
 Low 15.

Mississauga - Brampton.
Tonight..Showers ending overnight then cloudy with 30 percent chance
 of showers. Risk of a thunderstorm this evening and overnight. Local
 amount 15 to 25 mm. Wind becoming southwest 30 km/h after midnight.
 Low 19.
Thursday..Cloudy with 30 percent chance of showers. Wind south
 20 km/h gusting to 40 becoming northwest 30 gusting to 50 late in
 the morning. High 22. Humidex 27. UV index 7 or high.
Thursday night..Cloudy. Becoming partly cloudy near midnight. Wind
 northwest 30 km/h gusting to 50 becoming light after midnight.
 Low 15.

Caledon.
Tonight..Showers ending overnight then cloudy with 30 percent chance
 of showers. Risk of a thunderstorm this evening and overnight. Local
 amount 15 to 25 mm. Wind becoming southwest 20 km/h after midnight.
 Low 18.
Thursday..Cloudy with 30 percent chance of showers. Wind becoming
 southwest 20 km/h gusting to 40 in the morning then north 30 gusting
 to 50 in the afternoon. High 20. Humidex 26. UV index 4 or moderate.
Thursday night..Cloudy. Becoming partly cloudy near midnight. Wind
 northwest 30 km/h gusting to 50 becoming light after midnight.
 Low 14.

Vaughan - Richmond Hill - Markham.
Tonight..Showers ending before morning then mainly cloudy with
 30 percent chance of showers. Risk of a thunderstorm this evening
 and overnight. Local amount 10 to 20 mm. Wind becoming southwest
 20 km/h after midnight. Low 19.
Thursday..Cloudy with 30 percent chance of showers. Wind south
 20 km/h gusting to 40 becoming northwest 30 gusting to 50 in the
 afternoon. High 22. Humidex 27. UV index 4 or moderate.
Thursday night..Mainly cloudy. Wind northwest 30 km/h gusting to 50
 becoming light after midnight. Low 15.

Newmarket - Georgina - Northern York Region.
Tonight..Showers ending before morning then mainly cloudy with
 30 percent chance of showers. Risk of a thunderstorm this evening
 and overnight. Local amount 10 to 20 mm. Wind becoming south 20 km/h
 after midnight. Low 18.
Thursday..Cloudy with 30 percent chance of showers. Wind southwest
 20 km/h gusting to 40 becoming northwest 20 gusting to 40 in the
 afternoon then north 40 gusting to 60. High 22. Humidex 30. UV
 index 4 or moderate.
Thursday night..Mainly cloudy. Wind north 40 km/h gusting to 60
 becoming northwest 20 near midnight then light after midnight.
 Low 15 with temperature rising to 18 by morning.

Pickering - Oshawa - Southern Durham Region.
Tonight..Showers ending before morning then mainly cloudy with
 30 percent chance of showers. Risk of a thunderstorm this evening
 and overnight. Local amount 10 to 20 mm. Wind becoming south 20 km/h
 after midnight. Low 18.
Thursday..Cloudy with 30 percent chance of showers. Wind becoming
 southwest 20 km/h in the morning then becoming northwest 20 gusting
 to 40 late in the afternoon. High 22. Humidex 28. UV index 7 or
 high.
Thursday night..Mainly cloudy. Wind northwest 30 km/h gusting to 50.
 Low 15.

Uxbridge - Beaverton - Northern Durham Region.
Tonight..Showers ending before morning then cloudy with 30 percent
 chance of showers. Risk of a thunderstorm this evening and
 overnight. Local amount 10 to 20 mm. Wind becoming south 20 km/h
 gusting to 40 after midnight. Low 18.
Thursday..Cloudy with 30 percent chance of showers. Wind south
 20 km/h gusting to 40 becoming west 20 gusting to 40 in the
 afternoon then north 30 gusting to 50. High 20. Humidex 28. UV
 index 4 or moderate.
Thursday night..Cloudy. Wind northwest 40 km/h gusting to 60
 diminishing to 20 after midnight. Low 15.

Goderich - Bluewater - Southern Huron County.
Tonight..Showers ending near midnight then cloudy with 60 percent
 chance of showers. Risk of a thunderstorm this evening and
 overnight. Local amount 15 to 25 mm. Fog patches developing near
 midnight. Wind becoming south 20 km/h after midnight. Temperature
 steady near 18.
Thursday..Cloudy with 60 percent chance of showers. Fog patches
 dissipating in the morning. Wind becoming northwest 30 km/h gusting
 to 50 in the morning. Temperature steady near 19. UV index 5 or
 moderate.
Thursday night..Mainly cloudy with 60 percent chance of showers early
 in the evening. Clearing late in the evening. Wind northwest 20 km/h
 becoming light in the evening. Low 15.

Wingham - Blyth - Northern Huron County.
Tonight..Showers ending near midnight then cloudy with 60 percent
 chance of showers. Risk of a thunderstorm this evening and
 overnight. Local amount 15 to 25 mm. Fog patches developing near
 midnight. Temperature steady near 18.
Thursday..Cloudy with 60 percent chance of showers. Fog patches
 dissipating in the morning. Wind becoming northwest 20 km/h gusting
 to 40 late in the morning. Temperature steady near 19. UV index 4 or
 moderate.
Thursday night..Cloudy with 60 percent chance of showers early in the
 evening then partly cloudy. Wind northwest 20 km/h gusting to 40
 becoming light in the evening. Low 14.

Stratford - Mitchell - Southern Perth County.
Tonight..Showers ending near midnight then cloudy with 60 percent
 chance of showers. Risk of a thunderstorm this evening and
 overnight. Local amount 15 to 25 mm. Fog patches developing near
 midnight. Wind becoming south 20 km/h after midnight. Temperature
 steady near 18.
Thursday..Cloudy with 60 percent chance of showers. Fog patches
 dissipating in the morning. Wind becoming northwest 20 km/h gusting
 to 40 late in the morning. Temperature steady near 19. UV index 4 or
 moderate.
Thursday night..Cloudy with 60 percent chance of showers early in the
 evening then partly cloudy. Wind northwest 20 km/h gusting to 40
 becoming light in the evening. Low 14.

Listowel - Milverton - Northern Perth County.
Tonight..Showers ending near midnight then cloudy with 60 percent
 chance of showers. Risk of a thunderstorm this evening and
 overnight. Local amount 15 to 25 mm. Fog patches developing near
 midnight. Wind becoming south 20 km/h after midnight. Temperature
 steady near 18.
Thursday..Cloudy with 60 percent chance of showers. Fog patches
 dissipating in the morning. Wind becoming northwest 20 km/h gusting
 to 40 late in the morning. Temperature steady near 19. UV index 4 or
 moderate.
Thursday night..Cloudy. 60 percent chance of showers early in the
 evening. Clearing overnight. Wind northwest 20 km/h gusting to 40
 becoming light in the evening. Low 14.

Kitchener - Cambridge - Region of Waterloo.
Tonight..Showers ending near midnight then cloudy with 60 percent
 chance of showers. Risk of a thunderstorm this evening and
 overnight. Local amount 15 to 25 mm. Fog patches developing near
 midnight. Wind becoming southwest 20 km/h gusting to 40 after
 midnight. Temperature steady near 18.
Thursday..Cloudy with 60 percent chance of showers. Fog patches
 dissipating in the morning. Wind south 20 km/h gusting to 40
 becoming west 20 gusting to 40 late in the morning then north 30
 gusting to 50 late in the afternoon. High 20. Humidex 27. UV index 7
 or high.
Thursday night..Cloudy with 60 percent chance of showers early in the
 evening then partly cloudy. Wind north 30 km/h gusting to 50
 becoming light near midnight. Low 14.

Guelph - Erin - Southern Wellington County.
Tonight..Showers ending near midnight then cloudy with 60 percent
 chance of showers. Risk of a thunderstorm this evening and
 overnight. Local amount 15 to 25 mm. Fog patches developing near
 midnight. Wind becoming southwest 20 km/h gusting to 40 after
 midnight. Temperature steady near 18.
Thursday..Cloudy with 60 percent chance of showers. Fog patches
 dissipating in the morning. Wind south 20 km/h gusting to 40
 becoming west 20 gusting to 40 late in the morning then north 30
 gusting to 50 late in the afternoon. High 20. Humidex 27. UV index 7
 or high.
Thursday night..Mainly cloudy. 60 percent chance of showers early in
 the evening. Wind north 30 km/h gusting to 50 becoming light near
 midnight. Low 14.

Mount Forest - Arthur - Northern Wellington County.
Tonight..Showers ending near midnight then cloudy with 60 percent
 chance of showers. Risk of a thunderstorm this evening and
 overnight. Local amount 15 to 25 mm. Fog patches developing near
 midnight. Wind becoming south 30 km/h gusting to 50 late this
 evening then light after midnight. Temperature steady near 18.
Thursday..Cloudy with 60 percent chance of showers. Fog patches
 dissipating in the morning. Wind becoming northwest 20 km/h gusting
 to 40 in the afternoon. High 20. Humidex 26. UV index 4 or moderate.
Thursday night..Cloudy. 60 percent chance of showers early in the
 evening. Clearing before morning. Wind north 20 km/h gusting to 40
 becoming light near midnight. Low 14.

Orangeville - Grand Valley - Southern Dufferin County.
Tonight..Showers ending near midnight then cloudy with 60 percent
 chance of showers. Risk of a thunderstorm this evening and
 overnight. Local amount 15 to 25 mm. Fog patches developing near
 midnight. Low 18.
Thursday..Cloudy with 60 percent chance of showers. Fog patches
 dissipating in the morning. Wind becoming southwest 20 km/h late in
 the morning then north 30 gusting to 50. High 20. Humidex 26. UV
 index 4 or moderate.
Thursday night..Mainly cloudy. 60 percent chance of showers early in
 the evening. Wind north 30 km/h gusting to 50 becoming light near
 midnight. Low 14.

Shelburne - Mansfield - Northern Dufferin County.
Tonight..Showers ending before morning then cloudy with 40 percent
 chance of showers. Risk of a thunderstorm this evening and
 overnight. Low 18.
Thursday..Cloudy with 40 percent chance of showers. Wind becoming
 southwest 20 km/h late in the morning then north 30 gusting to 50.
 High 20. Humidex 26. UV index 4 or moderate.
Thursday night..Cloudy. 40 percent chance of showers early in the
 evening. Clearing before morning. Wind north 30 km/h gusting to 50
 becoming light near midnight. Low 14.

Innisfil - New Tecumseth - Angus.
Tonight..Showers ending before morning then cloudy with 40 percent
 chance of showers. Risk of a thunderstorm this evening and
 overnight. Wind becoming south 30 km/h gusting to 50 after midnight.
 Low 18.
Thursday..Cloudy with 40 percent chance of showers. Wind becoming
 northwest 30 km/h gusting to 50 in the afternoon. High 21. Humidex
 29. UV index 4 or moderate.
Thursday night..Mainly cloudy. 40 percent chance of showers early in
 the evening. Wind northwest 30 km/h gusting to 50 becoming light
 after midnight. Low 14.

Saugeen Shores - Kincardine - Southern Bruce County.
Tonight..Cloudy. 40 percent chance of showers early this evening.
 Showers beginning this evening changing to 60 percent chance of
 showers near midnight. Risk of a thunderstorm this evening and
 overnight. Fog patches developing near midnight. Low 16.
Thursday..Cloudy with 60 percent chance of showers. Fog patches
 dissipating in the morning. Wind becoming northwest 20 km/h gusting
 to 40 in the morning. Temperature steady near 16. UV index 5 or
 moderate.
Thursday night..Mainly cloudy. 60 percent chance of showers early in
 the evening. Clearing overnight. Fog patches developing after
 midnight. Temperature steady near 15.

Bruce Peninsula - Sauble Beach - Tobermory.
Tonight..Cloudy with 40 percent chance of showers this evening. Rain
 at times heavy beginning late this evening. Risk of a thunderstorm
 this evening and overnight. Local amount 30 to 40 mm. Fog patches
 developing near midnight. Wind becoming northeast 20 km/h before
 morning. Low 14.
Thursday..Rain at times heavy ending in the morning then cloudy with
 60 percent chance of showers. Risk of a thunderstorm in the morning.
 Local amount 10 to 15 mm. Fog patches dissipating in the morning.
 Wind northeast 20 km/h gusting to 40 becoming northwest 30 late in
 the morning then light in the afternoon. Temperature steady near 16.
 UV index 6 or high.
Thursday night..Mainly cloudy. 60 percent chance of showers early in
 the evening. Fog patches developing after midnight. Low 13.

Hanover - Dundalk - Southern Grey County.
Tonight..Showers with risk of a thunderstorm. Fog patches developing
 near midnight. Low 15.
Thursday..Cloudy with 60 percent chance of showers. Fog patches
 dissipating in the morning. Wind becoming north 30 km/h gusting to
 50 in the afternoon. High 19. UV index 4 or moderate.
Thursday night..Cloudy. 60 percent chance of showers early in the
 evening. Becoming partly cloudy after midnight. Fog patches
 developing after midnight. Wind north 30 km/h gusting to 50 becoming
 light in the evening. Temperature steady near 15.

Owen Sound - Blue Mountains - Northern Grey County.
Tonight..Showers with risk of a thunderstorm. Fog patches developing
 near midnight. Low 14.
Thursday..Cloudy with 60 percent chance of showers. Fog patches
 dissipating in the morning. Wind becoming northwest 30 km/h late in
 the morning. High 17. UV index 4 or moderate.
Thursday night..Cloudy. 60 percent chance of showers early in the
 evening. Becoming partly cloudy near midnight. Fog patches
 developing after midnight. Wind becoming southwest 20 km/h before
 morning. Low 13.

Barrie - Collingwood - Hillsdale.
Tonight..Showers ending before morning then cloudy with 40 percent
 chance of showers. Risk of a thunderstorm this evening and
 overnight. Low 18.
Thursday..Cloudy with 40 percent chance of showers. Wind becoming
 north 30 km/h gusting to 50 in the afternoon. High 21 with
 temperature falling to 17 in the afternoon. Humidex 28. UV index 4
 or moderate.
Thursday night..Cloudy. 40 percent chance of showers early in the
 evening. Wind north 30 km/h gusting to 50 becoming light after
 midnight. Low 14.

Midland - Coldwater - Orr Lake.
Tonight..Showers ending before morning then mainly cloudy with
 40 percent chance of showers. Risk of a thunderstorm this evening
 and overnight. Wind becoming southeast 20 km/h after midnight.
 Low 17.
Thursday..Cloudy with 40 percent chance of showers. Wind becoming
 north 30 km/h gusting to 50 in the afternoon. High 20. Humidex 25.
 UV index 4 or moderate.
Thursday night..Cloudy. 40 percent chance of showers early in the
 evening. Wind northwest 30 km/h gusting to 50 becoming light near
 midnight. Low 15.

Orillia - Lagoon City - Washago.
Tonight..Mainly cloudy with 40 percent chance of showers this
 evening. Showers beginning near midnight. Risk of a thunderstorm
 this evening and overnight. Wind becoming south 30 km/h before
 morning. Low 18.
Thursday..Showers. Wind south 30 km/h becoming north 30 gusting to 50
 in the afternoon. High 21. Humidex 27. UV index 4 or moderate.
Thursday night..Cloudy. 40 percent chance of showers in the evening.
 Wind northwest 30 km/h gusting to 50. Low 15.

Cobourg - Colborne - Western Northumberland County.
Tonight..Mainly cloudy. 30 percent chance of showers changing to
 70 percent chance of showers after midnight. Risk of a thunderstorm
 this evening and overnight. Wind becoming southwest 30 km/h then
 light this evening. Low 18.
Thursday..Cloudy with 30 percent chance of showers. Wind becoming
 southwest 30 km/h gusting to 50 in the morning. High 23 with
 temperature falling to 18 in the afternoon. Humidex 31. UV index 6
 or high.
Thursday night..Cloudy. 60 percent chance of showers in the evening
 and after midnight. Wind southwest 30 km/h becoming northwest 30
 gusting to 50 in the evening. Low 15.

Belleville - Quinte West - Eastern Northumberland County.
Tonight..Mainly cloudy. 30 percent chance of showers changing to
 70 percent chance of showers after midnight. Risk of a thunderstorm
 this evening and overnight. Wind becoming southwest 30 km/h then
 light this evening. Low 18.
Thursday..Cloudy with 30 percent chance of showers. Wind becoming
 southwest 30 km/h gusting to 50 in the morning. High 23 with
 temperature falling to 18 in the afternoon. Humidex 31. UV index 6
 or high.
Thursday night..Cloudy. 60 percent chance of showers in the evening
 and after midnight. Wind southwest 30 km/h becoming northwest 30
 gusting to 50 in the evening. Low 15.

Picton - Sandbanks Park.
Tonight..Mainly cloudy. 30 percent chance of showers changing to
 70 percent chance of showers after midnight. Risk of a thunderstorm
 this evening and overnight. Low 18.
Thursday..Cloudy with 30 percent chance of showers. Wind becoming
 southwest 30 km/h late in the morning. High 22. Humidex 29. UV
 index 6 or high.
Thursday night..Cloudy with 60 percent chance of showers. Wind
 southwest 30 km/h becoming northwest 20 gusting to 40 near midnight.
 Low 15.

Napanee - Consecon.
Tonight..Mainly cloudy. 30 percent chance of showers changing to
 70 percent chance of showers after midnight. Risk of a thunderstorm
 this evening and overnight. Low 18.
Thursday..Cloudy with 30 percent chance of showers. Wind becoming
 southwest 30 km/h late in the morning. High 22. Humidex 29. UV
 index 6 or high.
Thursday night..Cloudy with 60 percent chance of showers. Wind
 southwest 30 km/h becoming northwest 20 gusting to 40 near midnight.
 Low 15.

Kingston - Odessa - Frontenac Islands.
Tonight..Mainly cloudy. 30 percent chance of showers changing to
 70 percent chance of showers after midnight. Risk of a thunderstorm
 this evening and overnight. Low 18.
Thursday..Cloudy with 30 percent chance of showers. Wind becoming
 southwest 30 km/h late in the morning. High 22. Humidex 29. UV
 index 7 or high.
Thursday night..Cloudy with 60 percent chance of showers. Wind
 southwest 30 km/h becoming northwest 20 gusting to 40 near midnight.
 Low 15.

Lindsay - Southern Kawartha Lakes.
Tonight..Showers ending before morning then cloudy with 30 percent
 chance of showers. Risk of a thunderstorm this evening and
 overnight. Local amount 10 to 20 mm. Wind west 20 km/h becoming
 south 20 near midnight. Low 17.
Thursday..Cloudy with 30 percent chance of showers. Wind southwest
 30 km/h gusting to 50. High 22. Humidex 27. UV index 4 or moderate.
Thursday night..Cloudy. Wind northwest 20 km/h gusting to 40. Low 13.

Fenelon Falls - Balsam Lake Park - Northern Kawartha Lakes.
Tonight..Mainly cloudy with 40 percent chance of showers this
 evening. Showers beginning near midnight. Risk of a thunderstorm
 this evening and overnight. Wind west 20 km/h becoming south 20 near
 midnight. Low 17.
Thursday..Showers. Wind southwest 30 km/h gusting to 50. High 22.
 Humidex 27. UV index 4 or moderate.
Thursday night..Cloudy. 40 percent chance of showers in the evening.
 Wind northwest 20 km/h gusting to 40. Low 13.

Peterborough City - Lakefield - Southern Peterborough County.
Tonight..Mainly cloudy. 30 percent chance of showers changing to
 70 percent chance of showers after midnight. Risk of a thunderstorm
 this evening and overnight. Wind west 20 km/h becoming south 20 near
 midnight. Low 17.
Thursday..Cloudy with 30 percent chance of showers. Wind southwest
 30 km/h gusting to 50. High 22. Humidex 27. UV index 5 or moderate.
Thursday night..Cloudy. 60 percent chance of showers in the evening
 and after midnight. Wind northwest 20 km/h gusting to 40. Low 13.

Apsley - Woodview - Northern Peterborough County.
Tonight..Mainly cloudy with 40 percent chance of showers this
 evening. Showers beginning near midnight. Risk of a thunderstorm
 this evening and overnight. Wind becoming south 20 km/h before
 morning. Low 18.
Thursday..Showers. Wind south 20 km/h becoming north 30 gusting to 50
 late in the afternoon. High 22. Humidex 28. UV index 4 or moderate.
Thursday night..Cloudy. 40 percent chance of showers in the evening.
 Wind north 30 km/h gusting to 50. Low 13.

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 * Origin: Northern Realms (618:400/23)