FPCN11 CWTO 060900
Forecasts for Southern Ontario and the National Capital Region issued
by Environment Canada at 5:00 a.m. EDT Monday 6 October 2025 for
today and Tuesday.
The next scheduled forecast will be issued at 11:00 a.m. EDT.

City of Toronto.
Today..Sunny. High 28. Humidex 32. UV index 5 or moderate.
Tonight..Clear this evening and after midnight then partly cloudy
 with 30 percent chance of showers before morning. Risk of a
 thunderstorm before morning. Low 18.
Tuesday..Cloudy. 30 percent chance of showers early in the morning.
 Showers beginning in the morning. Risk of a thunderstorm in the
 morning and afternoon. High 21. Humidex 27. UV index 2 or low.

Windsor - Essex - Chatham-Kent.
Today..Sunny. High 29. Humidex 34. UV index 6 or high.
Tonight..Increasing cloudiness. 60 percent chance of showers
 overnight with risk of a thunderstorm. Wind becoming southwest
 20 km/h after midnight. Low 18.
Tuesday..Cloudy. 60 percent chance of showers early in the morning. A
 few showers beginning in the morning and ending late in the
 afternoon. Risk of a thunderstorm in the morning and early in the
 afternoon. Wind becoming north 20 km/h in the afternoon. High 20.
 Humidex 26. UV index 2 or low.

Sarnia - Lambton.
Today..Sunny. High 29. Humidex 34. UV index 5 or moderate.
Tonight..Increasing cloudiness. 60 percent chance of showers
 overnight with risk of a thunderstorm. Low 18.
Tuesday..Cloudy. 60 percent chance of showers early in the morning. A
 few showers beginning in the morning and ending late in the
 afternoon. Risk of a thunderstorm in the morning and early in the
 afternoon. Wind becoming north 30 km/h in the afternoon. High 19
 with temperature falling to 15 in the afternoon. UV index 2 or low.

Elgin.
Today..Sunny. Wind becoming southwest 20 km/h late this morning.
 High 27. Humidex 32. UV index 5 or moderate.
Tonight..Increasing cloudiness. 60 percent chance of showers
 overnight with risk of a thunderstorm. Wind becoming southwest
 30 km/h after midnight. Low 18.
Tuesday..Cloudy. 60 percent chance of showers early in the morning. A
 few showers beginning in the morning and ending late in the
 afternoon. Risk of a thunderstorm in the morning and early in the
 afternoon. Wind southwest 20 km/h becoming northwest 20 late in the
 morning. High 20 with temperature falling to 14 in the afternoon.
 Humidex 27. UV index 2 or low.

London - Middlesex.
Today..Sunny. Wind becoming southwest 20 km/h this afternoon.
 High 28. Humidex 32. UV index 5 or moderate.
Tonight..Clear. Increasing cloudiness near midnight then 60 percent
 chance of showers overnight. Risk of a thunderstorm overnight. Wind
 southwest 20 km/h becoming light this evening. Low 17.
Tuesday..Cloudy. 60 percent chance of showers early in the morning. A
 few showers beginning in the morning and ending late in the
 afternoon. Risk of a thunderstorm in the morning and early in the
 afternoon. Wind becoming northwest 20 km/h in the afternoon. High 19
 with temperature falling to 14 in the afternoon. UV index 2 or low.

Simcoe - Delhi - Norfolk.
Today..Sunny. High 27. Humidex 30. UV index 5 or moderate.
Tonight..A few clouds. Increasing cloudiness after midnight then
 40 percent chance of showers overnight. Risk of a thunderstorm
 before morning. Low 17.
Tuesday..Cloudy. 40 percent chance of showers early in the morning. A
 few showers beginning in the morning and ending late in the
 afternoon. Risk of a thunderstorm in the morning and early in the
 afternoon. High 19. UV index 2 or low.

Dunnville - Caledonia - Haldimand.
Today..Sunny. High 26. Humidex 31. UV index 5 or moderate.
Tonight..Clear. Increasing cloudiness after midnight. Low 18.
Tuesday..Cloudy. 40 percent chance of showers in the morning. Showers
 beginning in the morning. Risk of a thunderstorm in the morning and
 afternoon. Amount 15 to 25 mm. High 20. Humidex 27. UV index 2 or
 low.

Oxford - Brant.
Today..Sunny. Wind becoming southwest 20 km/h this afternoon.
 High 28. Humidex 33. UV index 5 or moderate.
Tonight..Clear. Increasing cloudiness near midnight then 40 percent
 chance of showers overnight. Risk of a thunderstorm before morning.
 Wind southwest 20 km/h becoming light this evening. Wind becoming
 southwest 30 after midnight. Low 17.
Tuesday..Cloudy. 40 percent chance of showers early in the morning. A
 few showers beginning in the morning and ending late in the
 afternoon. Risk of a thunderstorm in the morning and early in the
 afternoon. Wind southwest 30 km/h becoming light in the morning.
 Wind becoming west 20 in the afternoon. High 22. Humidex 27. UV
 index 2 or low.

Niagara Falls - Welland - Southern Niagara Region.
Today..Sunny. High 26. Humidex 31. UV index 5 or moderate.
Tonight..Clear. Increasing cloudiness after midnight. Wind becoming
 southwest 20 km/h late this evening. Low 19.
Tuesday..Cloudy. 40 percent chance of showers in the morning. Showers
 beginning in the morning. Risk of a thunderstorm in the morning and
 afternoon. Amount 15 to 25 mm. Wind southwest 30 km/h. Temperature
 steady near 19. UV index 2 or low.

St. Catharines - Grimsby - Northern Niagara Region.
Today..Sunny. Wind becoming southwest 20 km/h late this afternoon.
 High 27. Humidex 32. UV index 5 or moderate.
Tonight..Clear. Increasing cloudiness after midnight. Wind southwest
 20 km/h becoming light this evening. Low 19 with temperature rising
 to 22 by morning.
Tuesday..Cloudy. 40 percent chance of showers in the morning. Showers
 beginning in the morning. Risk of a thunderstorm in the morning and
 afternoon. Amount 15 to 25 mm. Wind becoming west 20 km/h late in
 the afternoon. Temperature falling to 15 in the afternoon. Humidex
 27. UV index 2 or low.

City of Hamilton.
Today..Sunny. High 26. Humidex 31. UV index 5 or moderate.
Tonight..Clear this evening then partly cloudy with 40 percent chance
 of showers overnight. Risk of a thunderstorm before morning. Low 18.
Tuesday..Cloudy. 40 percent chance of showers early in the morning. A
 few showers beginning in the morning and ending late in the
 afternoon. Risk of a thunderstorm in the morning and early in the
 afternoon. High 21. Humidex 27. UV index 2 or low.

Halton - Peel.
Today..Sunny. High 28. Humidex 32. UV index 5 or moderate.
Tonight..Clear this evening and after midnight then partly cloudy
 with 30 percent chance of showers before morning. Risk of a
 thunderstorm before morning. Low 18.
Tuesday..Cloudy. 30 percent chance of showers early in the morning.
 Showers beginning in the morning. Risk of a thunderstorm in the
 morning and afternoon. High 21. Humidex 26. UV index 2 or low.

York - Durham.
Today..Sunny. High 28. Humidex 31. UV index 5 or moderate.
Tonight..Clear this evening and after midnight then partly cloudy
 with 30 percent chance of showers before morning. Risk of a
 thunderstorm before morning. Low 15.
Tuesday..Cloudy. 30 percent chance of showers early in the morning.
 Showers beginning in the morning. Risk of a thunderstorm in the
 morning and afternoon. High 20 with temperature falling to 15 in the
 afternoon. Humidex 25. UV index 2 or low.

Huron - Perth.
Today..Sunny. Becoming a mix of sun and cloud this afternoon. Wind
 becoming southwest 20 km/h this afternoon. High 28. Humidex 31. UV
 index 5 or moderate.
Tonight..Becoming cloudy this evening. 60 percent chance of showers
 overnight. Risk of a thunderstorm overnight. Wind southwest 20 km/h
 becoming light this evening. Low 16.
Tuesday..A few showers ending in the afternoon then cloudy. Risk of a
 thunderstorm in the morning and early in the afternoon. Wind
 becoming northwest 20 km/h in the afternoon. Temperature steady
 near 16. UV index 2 or low.

Kitchener - Cambridge - Region of Waterloo
Guelph - Erin - Southern Wellington County.
Today..Sunny. Wind becoming southwest 20 km/h this afternoon.
 High 28. Humidex 31. UV index 5 or moderate.
Tonight..Clear this evening and after midnight then partly cloudy
 with 40 percent chance of showers overnight. Risk of a thunderstorm
 overnight. Wind southwest 20 km/h becoming light late this evening.
 Low 18.
Tuesday..Cloudy. 40 percent chance of showers early in the morning. A
 few showers beginning in the morning and ending in the afternoon.
 Risk of a thunderstorm in the morning and early in the afternoon.
 High 20 with temperature falling to 13 in the afternoon. Humidex 25.
 UV index 2 or low.

Mount Forest - Arthur - Northern Wellington County.
Today..Sunny. Increasing cloudiness late this afternoon. High 27.
 Humidex 31. UV index 5 or moderate.
Tonight..Partly cloudy. Becoming cloudy after midnight with
 40 percent chance of showers overnight. Risk of a thunderstorm
 overnight. Low 16.
Tuesday..Cloudy. 40 percent chance of showers early in the morning. A
 few showers beginning in the morning and ending in the afternoon.
 Risk of a thunderstorm in the morning and early in the afternoon.
 Temperature falling to 12 in the afternoon. UV index 2 or low.

Dufferin - Innisfil.
Today..Sunny. High 28. Humidex 32. UV index 5 or moderate.
Tonight..Clear this evening and after midnight then partly cloudy
 with 40 percent chance of showers overnight. Risk of a thunderstorm
 overnight. Low 16.
Tuesday..Cloudy. 40 percent chance of showers early in the morning. A
 few showers beginning in the morning and ending in the afternoon.
 Risk of a thunderstorm in the morning and early in the afternoon.
 High 18. UV index 2 or low.

Saugeen Shores - Kincardine - Southern Bruce County.
Today..Sunny. Wind southwest 30 km/h. High 26. Humidex 31. UV index 5
 or moderate.
Tonight..Increasing cloudiness. 30 percent chance of showers late
 this evening and after midnight. Showers beginning after midnight.
 Risk of a thunderstorm overnight. Wind south 20 km/h becoming light
 late this evening. Low 14.
Tuesday..Showers ending near noon then a mix of sun and cloud. Risk
 of a thunderstorm in the morning. Wind north 20 km/h becoming light
 in the afternoon. High 17. UV index 3 or moderate.

Bruce Peninsula - Sauble Beach - Tobermory.
Today..Sunny. High 23. Humidex 28. UV index 5 or moderate.
Tonight..Mainly cloudy with 40 percent chance of showers this evening
 and after midnight. A few showers beginning after midnight. Risk of
 thunderstorms late this evening and overnight. Low 12.
Tuesday..A few showers ending in the morning then clearing. Wind
 becoming northwest 30 km/h late in the morning. High 16. UV index 3
 or moderate.

Hanover - Dundalk - Southern Grey County
Owen Sound - Blue Mountains - Northern Grey County.
Today..Sunny. Wind becoming southwest 20 km/h late this morning.
 High 27. Humidex 31. UV index 5 or moderate.
Tonight..Increasing cloudiness. 30 percent chance of showers late
 this evening and after midnight. Showers beginning after midnight.
 Risk of a thunderstorm overnight. Low 14.
Tuesday..Showers ending near noon then a mix of sun and cloud. Risk
 of a thunderstorm in the morning. High 16. UV index 3 or moderate.

Barrie - Collingwood - Hillsdale.
Today..Sunny. High 28. Humidex 31. UV index 5 or moderate.
Tonight..Clear this evening then partly cloudy with 30 percent chance
 of showers late this evening and after midnight. Showers beginning
 after midnight. Risk of a thunderstorm overnight. Low 16.
Tuesday..Showers ending near noon then cloudy. Risk of a thunderstorm
 in the morning. Wind becoming northwest 20 km/h late in the morning.
 High 17. UV index 2 or low.

Midland - Coldwater - Orr Lake
Orillia - Lagoon City - Washago.
Today..Sunny. High 26. Humidex 31. UV index 5 or moderate.
Tonight..Increasing cloudiness. 30 percent chance of showers late
 this evening and after midnight. Showers beginning after midnight.
 Risk of a thunderstorm overnight. Low 15.
Tuesday..Showers ending near noon then cloudy. Risk of a thunderstorm
 in the morning. Wind becoming northwest 20 km/h late in the morning.
 Temperature steady near 16. UV index 2 or low.

Belleville - Quinte - Northumberland.
Today..Sunny. Fog patches dissipating this morning. High 26. Humidex
 30. UV index 5 or moderate.
Tonight..Clear. Low 15.
Tuesday..Increasing cloudiness. 40 percent chance of showers late in
 the morning. Showers beginning near noon. Risk of a thunderstorm
 late in the morning and in the afternoon. Amount 10 to 15 mm. Wind
 becoming southwest 30 km/h late in the morning then light in the
 afternoon. High 22 with temperature falling to 15 in the afternoon.
 Humidex 27. UV index 3 or moderate.

Picton - Sandbanks Park
Napanee - Consecon.
Today..Sunny. Fog patches dissipating this morning. High 26. Humidex
 30. UV index 5 or moderate.
Tonight..Clear. Low 15.
Tuesday..Increasing cloudiness. 40 percent chance of showers late in
 the morning. Showers beginning near noon. Risk of a thunderstorm
 late in the morning and in the afternoon. Amount 10 to 15 mm. Wind
 becoming southwest 30 km/h late in the morning then light in the
 afternoon. High 22 with temperature falling to 15 in the afternoon.
 Humidex 27. UV index 3 or moderate.

Kingston - Odessa - Frontenac Islands.
Today..Sunny. Fog patches dissipating this morning. High 23. Humidex
 28. UV index 5 or moderate.
Tonight..Clear. Becoming partly cloudy after midnight. Low 16.
Tuesday..Becoming cloudy in the morning with 40 percent chance of
 showers late in the morning. Showers beginning near noon. Risk of a
 thunderstorm late in the morning and in the afternoon. Amount 10 to
 15 mm. Wind becoming southwest 20 km/h in the morning. High 22 with
 temperature falling to 15 in the afternoon. Humidex 27. UV index 2
 or low.

Lindsay - Southern Kawartha Lakes
Fenelon Falls - Balsam Lake Park - Northern Kawartha Lakes.
Today..Sunny. Fog patches dissipating this morning. High 27. Humidex
 32. UV index 5 or moderate.
Tonight..Partly cloudy. 30 percent chance of showers before morning.
 Low 18.
Tuesday..Cloudy. 30 percent chance of showers in the morning. Showers
 beginning in the morning and ending late in the afternoon. Risk of a
 thunderstorm in the morning. Wind becoming northwest 20 km/h in the
 afternoon. Temperature falling to 14 in the afternoon. UV index 2 or
 low.

Peterborough City - Lakefield - Southern Peterborough County
Apsley - Woodview - Northern Peterborough County.
Today..Sunny. Fog patches dissipating this morning. High 27. Humidex
 31. UV index 5 or moderate.
Tonight..Partly cloudy. 30 percent chance of showers before morning.
 Low 17.
Tuesday..Cloudy. 30 percent chance of showers in the morning. Showers
 beginning in the morning and ending late in the afternoon. Risk of a
 thunderstorm in the morning. High 20. Humidex 25. UV index 2 or low.

Stirling - Tweed - South Frontenac.
Today..Sunny. Fog patches dissipating this morning. High 27. Humidex
 31. UV index 5 or moderate.
Tonight..A few clouds. Low 17.
Tuesday..Increasing cloudiness. 40 percent chance of showers in the
 morning. A few showers beginning near noon. Risk of a thunderstorm
 in the morning and afternoon. Amount 10 to 15 mm. High 23 with
 temperature falling to 17 in the afternoon. Humidex 28. UV index 3
 or moderate.

Bancroft - Bon Echo Park.
Today..Sunny. High 27. Humidex 30. UV index 5 or moderate.
Tonight..Partly cloudy. 40 percent chance of showers overnight. Risk
 of a thunderstorm before morning. Low 15.
Tuesday..Mainly cloudy. 40 percent chance of showers early in the
 morning. A few showers beginning in the morning and ending in the
 afternoon. Risk of a thunderstorm in the morning and early in the
 afternoon. High 19. UV index 2 or low.

Brockville - Leeds and Grenville.
Today..Sunny. High 28. Humidex 31. UV index 5 or moderate.
Tonight..Clear. Becoming partly cloudy after midnight. Low 17.
Tuesday..Becoming cloudy in the morning with a few showers. Risk of a
 thunderstorm in the afternoon. Amount 10 to 20 mm. Wind becoming
 southwest 20 km/h late in the morning. High 23 with temperature
 falling to 20 in the afternoon. Humidex 28. UV index 2 or low.

City of Ottawa.
Today..Sunny. High 30. Humidex 33. UV index 5 or moderate.
Tonight..Clear. Low 17.
Tuesday..A few showers ending late in the afternoon then cloudy with
 40 percent chance of showers. Risk of a thunderstorm late in the
 morning and in the afternoon. Amount 10 to 20 mm. Wind becoming
 southwest 20 km/h in the afternoon. High 24 with temperature falling
 to 18 in the afternoon. Humidex 28. UV index 2 or low.

Gatineau.
Today..Sunny. High 30. Humidex 33. UV index 5 or moderate.
Tonight..Clear. Low 15.
Tuesday..A few showers ending late in the afternoon then cloudy with
 40 percent chance of showers. Risk of a thunderstorm late in the
 morning and in the afternoon. Amount 10 to 20 mm. High 24 with
 temperature falling to 16 in the afternoon. Humidex 27. UV index 2
 or low.

Prescott and Russell.
Today..Sunny. High 28. Humidex 30. UV index 5 or moderate.
Tonight..Clear. Low 19.
Tuesday..A few showers ending late in the afternoon then cloudy with
 40 percent chance of showers. Risk of a thunderstorm late in the
 morning and in the afternoon. Amount 10 to 20 mm. Wind becoming
 southwest 20 km/h in the morning. High 25 with temperature falling
 to 18 in the afternoon. Humidex 28. UV index 2 or low.

Cornwall - Morrisburg.
Today..Sunny. High 28. Humidex 31. UV index 5 or moderate.
Tonight..Clear. Low 16.
Tuesday..Increasing cloudiness. A few showers beginning late in the
 morning. Risk of a thunderstorm in the afternoon. Amount 10 to
 20 mm. Wind becoming southwest 20 km/h in the morning. High 25.
 Humidex 30. UV index 3 or moderate.

Smiths Falls - Lanark - Sharbot Lake.
Today..Sunny. High 27. Humidex 30. UV index 5 or moderate.
Tonight..Clear. Low 17.
Tuesday..A few showers ending late in the afternoon then cloudy with
 40 percent chance of showers. Risk of a thunderstorm late in the
 morning and in the afternoon. Amount 10 to 20 mm. High 23 with
 temperature falling to 17 in the afternoon. Humidex 27. UV index 2
 or low.

Port Carling - Port Severn
Bracebridge - Gravenhurst.
Today..Sunny. High 27. Humidex 30. UV index 5 or moderate.
Tonight..Increasing cloudiness. 40 percent chance of showers this
 evening. A few showers beginning near midnight. Risk of a
 thunderstorm overnight. Low 16.
Tuesday..A few showers ending in the morning then cloudy. Risk of a
 thunderstorm early in the morning. High 18. UV index 3 or moderate.

Town of Parry Sound - Rosseau - Killbear Park
Huntsville - Baysville.
Today..Sunny. High 25. Humidex 30. UV index 5 or moderate.
Tonight..Becoming cloudy this evening with 40 percent chance of
 showers later this evening. A few showers beginning near midnight.
 Risk of a thunderstorm overnight. Low 14.
Tuesday..A few showers ending in the morning then clearing. Risk of a
 thunderstorm early in the morning. High 17. UV index 2 or low.

Haliburton.
Today..Sunny. Becoming a mix of sun and cloud this afternoon.
 High 25. Humidex 29. UV index 5 or moderate.
Tonight..Partly cloudy. Becoming cloudy after midnight with
 40 percent chance of showers overnight. Risk of a thunderstorm
 before morning. Low 15.
Tuesday..Cloudy. 40 percent chance of showers early in the morning. A
 few showers beginning in the morning and ending in the afternoon.
 Risk of a thunderstorm in the morning and early in the afternoon.
 High 16. UV index 3 or moderate.

Renfrew - Pembroke - Barry's Bay.
Today..Sunny. High 28. Humidex 30. UV index 5 or moderate.
Tonight..Clear. Increasing cloudiness after midnight then 40 percent
 chance of showers overnight. Risk of a thunderstorm before morning.
 Low 17.
Tuesday..Cloudy. 40 percent chance of showers early in the morning. A
 few showers beginning in the morning and ending in the afternoon.
 Becoming a mix of sun and cloud late in the afternoon. Risk of a
 thunderstorm in the morning and early in the afternoon. High 19. UV
 index 2 or low.

Algonquin.
Today..Sunny. High 26. Humidex 29. UV index 5 or moderate.
Tonight..Increasing cloudiness. 30 percent chance of showers late
 this evening and after midnight. A few showers beginning overnight.
 Risk of a thunderstorm overnight. Low 14.
Tuesday..A few showers ending in the morning then clearing. Risk of a
 thunderstorm early in the morning. High 16. UV index 2 or low.

Burk's Falls - Bayfield Inlet.
Today..Sunny. High 25. Humidex 29. UV index 5 or moderate.
Tonight..Increasing cloudiness. 40 percent chance of showers this
 evening. A few showers beginning near midnight. Risk of a
 thunderstorm overnight. Low 12.
Tuesday..A few showers ending in the morning then clearing. Risk of a
 thunderstorm early in the morning. Wind becoming west 20 km/h late
 in the afternoon. High 17. UV index 2 or low.

End
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--- up 12 hours, 46 minutes
 * Origin: Northern Realms (618:400/23)