FPCN11 CWTO 071500
Forecasts for Southern Ontario and the National Capital Region issued
by Environment Canada at 11:00 a.m. EDT Tuesday 7 October 2025 for
today and Wednesday.
The next scheduled forecast will be issued at 3:30 p.m. EDT.

City of Toronto.
Today..Showers with risk of a thunderstorm. Wind southwest 20 km/h
 becoming light this afternoon. High 21. Humidex 27. UV index 2 or
 low.
Tonight..Clearing late this evening. Low 8.
Wednesday..Sunny. Wind north 20 km/h. High 15. UV index 4 or
 moderate.

Windsor - Essex - Chatham-Kent.
Today..A few showers ending late this afternoon then cloudy. Risk of
 a thunderstorm early this afternoon. Local amount 10 to 20 mm. Wind
 north 20 km/h gusting to 40. High 20. Humidex 27. UV index 2 or low.
Tonight..Cloudy. Clearing before morning. Wind north 20 km/h becoming
 light this evening. Low 6.
Wednesday..Sunny. High 16. UV index 5 or moderate.

Sarnia - Lambton.
Today..A few showers ending late this afternoon then cloudy. Risk of
 a thunderstorm early this afternoon. Wind north 20 km/h. Temperature
 falling to 15 this afternoon. UV index 2 or low.
Tonight..Partly cloudy. Clearing after midnight. Wind north 20 km/h.
 Low 7.
Wednesday..Sunny. Wind north 20 km/h. High 15. UV index 5 or
 moderate.

Elgin.
Today..A few showers ending late this afternoon then cloudy. Risk of
 a thunderstorm early this afternoon. Local amount 10 to 20 mm. Wind
 northwest 20 km/h. High 21 with temperature falling to 14 this
 afternoon. Humidex 28. UV index 2 or low.
Tonight..Cloudy. Clearing after midnight. Wind northwest 20 km/h
 becoming light this evening. Low 6.
Wednesday..Sunny. Wind becoming north 20 km/h late in the morning.
 High 15. UV index 5 or moderate.

London - Middlesex.
Today..Cloudy. A few showers beginning near noon and ending this
 afternoon. Risk of a thunderstorm early this afternoon. Wind
 northwest 20 km/h. High 21 with temperature falling to 14 this
 afternoon. Humidex 26. UV index 2 or low.
Tonight..Clearing late this evening. Wind north 20 km/h. Low 6.
Wednesday..Sunny. Wind north 20 km/h. High 16. UV index 4 or
 moderate.

Simcoe - Delhi - Norfolk.
Today..A few showers ending late this afternoon then cloudy. Risk of
 a thunderstorm early this afternoon. Local amount 10 to 20 mm. Wind
 west 30 km/h. High 19. UV index 2 or low.
Tonight..Cloudy. Clearing overnight. Wind west 30 km/h becoming light
 this evening. Low plus 5.
Wednesday..Sunny. Wind north 20 km/h. High 16. UV index 4 or
 moderate.

Dunnville - Caledonia - Haldimand.
Today..Showers with risk of a thunderstorm. Amount 15 to 25 mm. Wind
 west 30 km/h. High 20. Humidex 27. UV index 2 or low.
Tonight..Cloudy. 40 percent chance of showers early this evening.
 Clearing before morning. Wind becoming northwest 20 km/h before
 morning. Low 6.
Wednesday..Sunny. Wind north 20 km/h. High 15. UV index 4 or
 moderate.

Oxford - Brant.
Today..A few showers ending late this afternoon then cloudy. Risk of
 a thunderstorm early this afternoon. Wind west 20 km/h. High 22.
 Humidex 27. UV index 2 or low.
Tonight..Mainly cloudy. Clearing before morning. Low plus 5.
Wednesday..Sunny. Wind north 20 km/h. High 16. UV index 4 or
 moderate.

Niagara Falls - Welland - Southern Niagara Region.
Today..Showers with risk of a thunderstorm. Amount 15 to 25 mm. Wind
 southwest 30 km/h. High 23. Humidex 30. UV index 2 or low.
Tonight..Cloudy. 40 percent chance of showers early this evening.
 Clearing after midnight. Wind west 20 km/h becoming light this
 evening. Low 10.
Wednesday..Sunny. Wind north 20 km/h. High 14. UV index 4 or
 moderate.

St. Catharines - Grimsby - Northern Niagara Region.
Today..Showers with risk of a thunderstorm. Amount 15 to 25 mm. Wind
 west 20 km/h. High 23 with temperature falling to 15 this afternoon.
 Humidex 29. UV index 2 or low.
Tonight..Cloudy. 40 percent chance of showers early this evening.
 Clearing after midnight. Wind northwest 20 km/h. Low 9.
Wednesday..Sunny. Wind north 20 km/h. High 14. UV index 4 or
 moderate.

City of Hamilton.
Today..A few showers ending late this afternoon then cloudy. Risk of
 a thunderstorm early this afternoon. Local amount 10 to 15 mm. Wind
 southwest 20 km/h. High 21. Humidex 27. UV index 2 or low.
Tonight..Cloudy. Becoming partly cloudy this evening. Wind southwest
 20 km/h becoming light this evening. Low 6.
Wednesday..Sunny. Wind becoming north 20 km/h in the morning.
 High 15. UV index 4 or moderate.

Halton - Peel.
Today..Cloudy. Showers beginning near noon. Risk of a thunderstorm.
 Wind southwest 20 km/h becoming northwest 20 this afternoon.
 High 21. Humidex 26. UV index 2 or low.
Tonight..Clearing after midnight. Wind northwest 20 km/h becoming
 light after midnight. Low 7.
Wednesday..Sunny. Wind becoming north 20 km/h in the morning.
 High 15. UV index 4 or moderate.

York - Durham.
Today..Cloudy. A few showers beginning early this afternoon. Risk of
 a thunderstorm this afternoon. Wind west 20 km/h. High 20 with
 temperature falling to 15 this afternoon. Humidex 25. UV index 2 or
 low.
Tonight..Clearing late this evening. Low 6.
Wednesday..Sunny. Wind becoming northwest 20 km/h late in the
 afternoon. High 15. UV index 4 or moderate.

Goderich - Bluewater - Southern Huron County
Stratford - Mitchell - Southern Perth County.
Today..A few showers ending late this afternoon then cloudy. Risk of
 a thunderstorm early this afternoon. Wind becoming northwest 20 km/h
 this afternoon. Temperature steady near 16. UV index 2 or low.
Tonight..Clearing late this evening. Wind becoming north 20 km/h late
 this evening. Low plus 4.
Wednesday..Sunny. Wind north 20 km/h. High 14. UV index 4 or
 moderate.

Wingham - Blyth - Northern Huron County
Listowel - Milverton - Northern Perth County.
Today..A few showers ending late this afternoon then cloudy. Risk of
 a thunderstorm early this afternoon. Wind becoming northwest 20 km/h
 this afternoon. Temperature steady near 16. UV index 2 or low.
Tonight..Clearing late this evening. Wind becoming north 20 km/h late
 this evening. Low plus 4.
Wednesday..Sunny. Wind north 20 km/h. High 14. UV index 4 or
 moderate.

Kitchener - Cambridge - Region of Waterloo
Guelph - Erin - Southern Wellington County.
Today..Cloudy. A few showers beginning early this afternoon. Risk of
 a thunderstorm this afternoon. High 19 with temperature falling
 to 13 this afternoon. UV index 2 or low.
Tonight..Clearing late this evening. Low plus 5.
Wednesday..Sunny. Wind becoming north 20 km/h late in the morning.
 High 15. UV index 4 or moderate.

Mount Forest - Arthur - Northern Wellington County.
Today..Cloudy. A few showers early this afternoon with risk of a
 thunderstorm. Temperature falling to 12 this afternoon. UV index 2
 or low.
Tonight..Clearing this evening. Low plus 4.
Wednesday..Sunny. Wind becoming north 20 km/h late in the morning.
 High 13. UV index 4 or moderate.

Dufferin - Innisfil.
Today..Cloudy. A few showers early this afternoon with risk of a
 thunderstorm. High 18. UV index 2 or low.
Tonight..Clearing late this evening. Low plus 5.
Wednesday..Sunny. Wind becoming northwest 20 km/h in the morning.
 High 13. UV index 4 or moderate.

Saugeen Shores - Kincardine - Southern Bruce County.
Today..Showers ending this afternoon then a mix of sun and cloud.
 Local amount 10 to 20 mm. Wind north 20 km/h becoming light this
 afternoon. High 17. UV index 2 or low.
Tonight..Clearing late this evening. Wind becoming northwest 30 km/h
 this evening. Low 7.
Wednesday..Sunny. Wind north 20 km/h. High 13. UV index 4 or
 moderate.

Bruce Peninsula - Sauble Beach - Tobermory.
Today..A few showers ending this afternoon then clearing. Wind
 northwest 20 km/h. High 16. UV index 2 or low.
Tonight..Clear. Wind northwest 30 km/h. Low plus 4.
Wednesday..Sunny. Wind becoming north 20 km/h late in the morning.
 High 11. UV index 4 or moderate.

Hanover - Dundalk - Southern Grey County
Owen Sound - Blue Mountains - Northern Grey County.
Today..Showers ending this afternoon then a mix of sun and cloud.
 Local amount 10 to 20 mm. High 16. UV index 2 or low.
Tonight..Clearing this evening. Wind northwest 20 km/h. Low plus 5.
Wednesday..Sunny. Wind north 20 km/h. High 12. UV index 4 or
 moderate.

Barrie - Collingwood - Hillsdale.
Today..Cloudy. 40 percent chance of showers early this afternoon.
 Wind northwest 20 km/h. High 17. UV index 2 or low.
Tonight..Clearing this evening. Wind northwest 20 km/h. Low plus 3.
Wednesday..Sunny. Wind northwest 20 km/h. High 13. UV index 4 or
 moderate.

Midland - Coldwater - Orr Lake
Orillia - Lagoon City - Washago.
Today..Cloudy with 60 percent chance of showers. Wind northwest
 20 km/h. Temperature steady near 16. UV index 2 or low.
Tonight..Clearing late this evening. Wind northwest 20 km/h. Low
 plus 5.
Wednesday..Sunny. Wind northwest 20 km/h. High 14. UV index 4 or
 moderate.

Belleville - Quinte - Northumberland.
Today..Showers with risk of a thunderstorm. Amount 10 to 15 mm. Wind
 southwest 30 km/h. High 20 with temperature falling to 17 this
 afternoon. Humidex 26. UV index 2 or low.
Tonight..Showers ending this evening then clearing. Risk of a
 thunderstorm early this evening. Low 7.
Wednesday..Sunny. High 16. UV index 4 or moderate.

Picton - Sandbanks Park
Napanee - Consecon.
Today..Showers with risk of a thunderstorm. Amount 10 to 15 mm. Wind
 southwest 30 km/h. High 20 with temperature falling to 17 this
 afternoon. Humidex 26. UV index 2 or low.
Tonight..Showers ending this evening then clearing. Risk of a
 thunderstorm early this evening. Low 7.
Wednesday..Sunny. High 16. UV index 4 or moderate.

Kingston - Odessa - Frontenac Islands.
Today..Showers with risk of a thunderstorm. Amount 10 to 15 mm. Wind
 southwest 20 km/h. High 20 with temperature falling to 17 this
 afternoon. Humidex 25. UV index 2 or low.
Tonight..Showers ending this evening then partly cloudy. Risk of a
 thunderstorm early this evening. Low 9.
Wednesday..Sunny. High 15. UV index 4 or moderate.

Lindsay - Southern Kawartha Lakes
Fenelon Falls - Balsam Lake Park - Northern Kawartha Lakes.
Today..Showers ending late this afternoon then cloudy. Risk of a
 thunderstorm. Wind northwest 20 km/h. Temperature falling to 14 this
 afternoon. UV index 2 or low.
Tonight..Clearing late this evening. Low plus 5.
Wednesday..Sunny. High 13. UV index 4 or moderate.

Peterborough City - Lakefield - Southern Peterborough County
Apsley - Woodview - Northern Peterborough County.
Today..Showers with risk of a thunderstorm. Wind becoming west
 20 km/h early this afternoon. High 20. Humidex 25. UV index 2 or
 low.
Tonight..Clearing late this evening. Wind west 20 km/h becoming light
 this evening. Low plus 4.
Wednesday..Sunny. High 15. UV index 4 or moderate.

Stirling - Tweed - South Frontenac.
Today..Showers with risk of a thunderstorm. Amount 10 to 15 mm. Wind
 southwest 20 km/h. High 21 with temperature falling to 17 this
 afternoon. Humidex 26. UV index 2 or low.
Tonight..A few showers ending this evening then clearing. Low 6.
Wednesday..Sunny. High 14. UV index 4 or moderate.

Bancroft - Bon Echo Park.
Today..Cloudy with 60 percent chance of showers. Risk of a
 thunderstorm early this afternoon. Wind southwest 20 km/h becoming
 light late this afternoon. High 19. UV index 2 or low.
Tonight..Cloudy. Clearing near midnight. Low plus 3.
Wednesday..Sunny. High 14. UV index 4 or moderate.

Brockville - Leeds and Grenville.
Today..Showers with risk of a thunderstorm. Amount 10 to 20 mm. Wind
 southwest 20 km/h. High 23 with temperature falling to 17 this
 afternoon. Humidex 27. UV index 2 or low.
Tonight..A few showers ending late this evening then partly cloudy.
 Risk of a thunderstorm early this evening. Low 7.
Wednesday..Sunny. High 14. UV index 4 or moderate.

City of Ottawa.
Today..A few showers ending this afternoon then cloudy with
 40 percent chance of showers. Risk of a thunderstorm. Amount 10 to
 20 mm. Wind southwest 20 km/h. High 21 with temperature falling
 to 16 this afternoon. Humidex 28. UV index 2 or low.
Tonight..Cloudy. 40 percent chance of showers early this evening.
 Clearing after midnight. Low 6.
Wednesday..Sunny. Wind becoming northwest 20 km/h in the afternoon.
 High 13. UV index 4 or moderate.

Gatineau.
Today..A few showers ending this afternoon then cloudy with
 40 percent chance of showers. Risk of a thunderstorm. Amount 10 to
 20 mm. Wind southwest 20 km/h. High 21 with temperature falling
 to 16 this afternoon. Humidex 27. UV index 2 or low.
Tonight..Cloudy. 40 percent chance of showers early this evening.
 Clearing after midnight. Wind southwest 20 km/h becoming light this
 evening. Low 6.
Wednesday..Sunny. Wind becoming northwest 20 km/h in the afternoon.
 High 15. UV index 4 or moderate.

Prescott and Russell.
Today..A few showers ending this afternoon then cloudy with
 40 percent chance of showers. Risk of a thunderstorm. Amount 10 to
 20 mm. Wind southwest 20 km/h. High 20 with temperature falling
 to 16 this afternoon. Humidex 27. UV index 2 or low.
Tonight..Cloudy. 40 percent chance of showers early this evening.
 Clearing after midnight. Low 6.
Wednesday..Sunny. Wind becoming northwest 20 km/h late in the
 morning. High 13. UV index 4 or moderate.

Cornwall - Morrisburg.
Today..Showers with risk of a thunderstorm. Amount 10 to 20 mm. Wind
 southwest 20 km/h. High 24 with temperature falling to 17 this
 afternoon. Humidex 27. UV index 2 or low.
Tonight..A few showers ending late this evening then partly cloudy.
 Risk of a thunderstorm early this evening. Low 6.
Wednesday..Clearing in the morning. High 14. UV index 4 or moderate.

Smiths Falls - Lanark - Sharbot Lake.
Today..A few showers ending late this afternoon then cloudy with
 40 percent chance of showers. Risk of a thunderstorm. Amount 10 to
 20 mm. Wind southwest 20 km/h becoming light late this afternoon.
 High 21 with temperature falling to 16 this afternoon. Humidex 25.
 UV index 2 or low.
Tonight..Cloudy. 40 percent chance of showers early this evening.
 Clearing near midnight. Low plus 5.
Wednesday..Sunny. High 13. UV index 4 or moderate.

Port Carling - Port Severn
Bracebridge - Gravenhurst.
Today..Cloudy. 60 percent chance of showers early this afternoon.
 High 18. UV index 2 or low.
Tonight..Clearing this evening. Wind northwest 20 km/h becoming light
 after midnight. Low plus 4.
Wednesday..Sunny. High 13. UV index 4 or moderate.

Town of Parry Sound - Rosseau - Killbear Park
Huntsville - Baysville.
Today..Cloudy with 30 percent chance of showers early this afternoon.
 Clearing this afternoon. High 17. UV index 2 or low.
Tonight..Clear. Wind northwest 20 km/h becoming light after midnight.
 Low plus 3.
Wednesday..Sunny. High 13. UV index 4 or moderate.

Haliburton.
Today..Cloudy. 60 percent chance of showers early this afternoon with
 risk of a thunderstorm. High 16. UV index 2 or low.
Tonight..Clearing this evening. Low plus 3.
Wednesday..Sunny. High 12. UV index 4 or moderate.

Renfrew - Pembroke - Barry's Bay.
Today..Showers. Risk of a thunderstorm early this afternoon. High 19.
 UV index 2 or low.
Tonight..Partly cloudy. Clearing late this evening. Low plus 3.
Wednesday..Sunny. High 12. UV index 4 or moderate.

Algonquin.
Today..Cloudy with 30 percent chance of showers early this afternoon.
 Clearing this afternoon. High 16. UV index 2 or low.
Tonight..Partly cloudy. Becoming clear this evening. Low plus 3.
Wednesday..Sunny. High 11. UV index 4 or moderate.

Burk's Falls - Bayfield Inlet.
Today..Clearing late this afternoon. High 17. UV index 2 or low.
Tonight..Clear. Low plus 3.
Wednesday..Sunny. High 12. UV index 4 or moderate.

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