FPCN11 CWTO 111930
Forecasts for Southern Ontario and the National Capital Region issued
by Environment Canada at 3:30 p.m. EDT Sunday 11 May 2025 for tonight
Monday and Monday night.
The next scheduled forecast will be issued at 5:00 a.m. EDT Monday.

City of Toronto.
Tonight..Clear. Wind southeast 20 km/h becoming light this evening.
 Low plus 5.
Monday..Sunny. High 22.
Monday night..Clear. Increasing cloudiness after midnight. Low 13.

Windsor - Leamington - Essex County.
Tonight..Clear. Low 8.
Monday..Sunny. Becoming a mix of sun and cloud late in the afternoon.
 Wind becoming southeast 30 km/h gusting to 50 in the afternoon.
 High 26. Humidex 28.
Monday night..Cloudy. 30 percent chance of showers late in the
 evening and overnight. Wind southeast 20 km/h becoming light in the
 evening. Low 15.

Chatham-Kent - Rondeau Park.
Tonight..Clear. Low 8.
Monday..Sunny. Increasing cloudiness late in the afternoon. Wind
 becoming southeast 30 km/h late in the afternoon. High 25. Humidex
 27.
Monday night..Cloudy. 30 percent chance of showers late in the
 evening and overnight. Wind southeast 20 km/h becoming light in the
 evening. Low 15.

Sarnia - Petrolia - Western Lambton County.
Tonight..Clear. Low 6.
Monday..Sunny. Wind becoming southeast 20 km/h late in the afternoon.
 High 26. Humidex 28.
Monday night..Increasing cloudiness. 30 percent chance of showers
 overnight. Low 14.

Watford - Pinery Park - Eastern Lambton County.
Tonight..Clear. Low plus 5.
Monday..Sunny. High 25. Humidex 26.
Monday night..Increasing cloudiness. 30 percent chance of showers
 overnight. Wind southeast 20 km/h becoming light in the evening.
 Low 17.

Rodney - Shedden - Western Elgin County.
Tonight..Clear. Low 7.
Monday..Sunny. Wind becoming southeast 30 km/h late in the afternoon.
 High 23. Humidex 25.
Monday night..Partly cloudy. Becoming cloudy near midnight with
 30 percent chance of showers overnight. Low 15.

St. Thomas - Aylmer - Eastern Elgin County.
Tonight..Clear. Low 7.
Monday..Sunny. High 25.
Monday night..Partly cloudy. Becoming cloudy near midnight with
 30 percent chance of showers overnight. Low 16.

Strathroy - Komoka - Western Middlesex County.
Tonight..Clear. Low 6.
Monday..Sunny. Wind becoming south 20 km/h late in the afternoon.
 High 25. Humidex 26.
Monday night..Increasing cloudiness. 30 percent chance of showers
 overnight. Wind southeast 20 km/h becoming light in the evening.
 Low 15.

London - Parkhill - Eastern Middlesex County.
Tonight..Clear. Low 6.
Monday..Sunny. High 25. Humidex 26.
Monday night..Increasing cloudiness. 30 percent chance of showers
 overnight. Wind southeast 20 km/h becoming light in the evening.
 Low 15.

Simcoe - Delhi - Norfolk.
Tonight..Clear. Low plus 4.
Monday..Sunny. Wind becoming southeast 20 km/h late in the afternoon.
 High 25. Humidex 26.
Monday night..Increasing cloudiness near midnight. Low 15.

Dunnville - Caledonia - Haldimand.
Tonight..Clear. Low plus 5.
Monday..Sunny. High 25. Humidex 28.
Monday night..Increasing cloudiness near midnight. Low 15.

Woodstock - Tillsonburg - Oxford County.
Tonight..Clear. Low plus 4.
Monday..Sunny. Wind becoming southeast 20 km/h late in the afternoon.
 High 25. Humidex 27.
Monday night..Increasing cloudiness near midnight. Low 15.

Brantford - County of Brant.
Tonight..Clear. Low plus 3 with risk of frost.
Monday..Sunny. High 25. Humidex 27.
Monday night..Increasing cloudiness near midnight. Low 15.

Niagara Falls - Welland - Southern Niagara Region.
Tonight..Clear. Low 7.
Monday..Sunny. High 23. Humidex 25.
Monday night..Clear. Increasing cloudiness after midnight. Low 14.

St. Catharines - Grimsby - Northern Niagara Region.
Tonight..Clear. Wind northeast 20 km/h becoming light early this
 evening. Low plus 5.
Monday..Sunny. High 21.
Monday night..Clear. Increasing cloudiness after midnight. Low 12.

City of Hamilton.
Tonight..Clear. Wind northeast 20 km/h becoming light this evening.
 Low plus 4 with temperature rising to 10 by morning.
Monday..Sunny. High 23. Humidex 25.
Monday night..Clear. Increasing cloudiness after midnight. Low 13.

Burlington - Oakville.
Tonight..Clear. Low plus 5.
Monday..Sunny. High 20.
Monday night..Clear. Increasing cloudiness after midnight. Low 10.

Halton Hills - Milton.
Tonight..Clear. Low plus 3 with risk of frost.
Monday..Sunny. High 23. Humidex 25.
Monday night..Clear. Increasing cloudiness after midnight. Low 12.

Mississauga - Brampton.
Tonight..Clear. Wind southeast 20 km/h becoming light this evening.
 Low plus 4.
Monday..Sunny. High 22.
Monday night..Clear. Increasing cloudiness after midnight. Low 12.

Caledon.
Tonight..Clear. Low plus 3 with risk of frost.
Monday..Sunny. High 24. Humidex 26.
Monday night..Clear. Increasing cloudiness after midnight. Low 12.

Vaughan - Richmond Hill - Markham.
Tonight..Clear. Low plus 4.
Monday..Sunny. High 23.
Monday night..A few clouds. Low 14.

Newmarket - Georgina - Northern York Region.
Tonight..Clear. Low plus 3 with risk of frost.
Monday..Sunny. High 25.
Monday night..A few clouds. Low 14.

Pickering - Oshawa - Southern Durham Region.
Tonight..Clear. Low plus 4.
Monday..Sunny. High 23.
Monday night..Clear. Low 11.

Uxbridge - Beaverton - Northern Durham Region.
Tonight..Clear. Low plus 3 with risk of frost.
Monday..Sunny. High 25. Humidex 26.
Monday night..Clear. Low 11.

Goderich - Bluewater - Southern Huron County.
Tonight..Clear. Wind becoming southeast 20 km/h this evening.
 Temperature rising to 15 this evening then falling.
Monday..Sunny. High 25. Humidex 27.
Monday night..Increasing cloudiness near midnight. Low 16.

Wingham - Blyth - Northern Huron County.
Tonight..Clear. Low plus 5.
Monday..Sunny. High 25. Humidex 27.
Monday night..Increasing cloudiness near midnight. Low 15.

Stratford - Mitchell - Southern Perth County.
Tonight..Clear. Wind east 20 km/h becoming light this evening. Low
 plus 5.
Monday..Sunny. Wind becoming southeast 20 km/h late in the afternoon.
 High 26. Humidex 28.
Monday night..Increasing cloudiness near midnight. Low 15.

Listowel - Milverton - Northern Perth County.
Tonight..Clear. Low plus 5.
Monday..Sunny. High 25. Humidex 27.
Monday night..Increasing cloudiness near midnight. Low 15.

Kitchener - Cambridge - Region of Waterloo.
Tonight..Clear. Low plus 3 with risk of frost.
Monday..Sunny. High 25. Humidex 28.
Monday night..Clear. Increasing cloudiness after midnight. Low 13.

Guelph - Erin - Southern Wellington County.
Tonight..Clear. Low plus 3 with risk of frost.
Monday..Sunny. High 25. Humidex 28.
Monday night..Clear. Increasing cloudiness after midnight. Low 13.

Mount Forest - Arthur - Northern Wellington County.
Tonight..Clear. Low plus 4.
Monday..Sunny. High 25. Humidex 27.
Monday night..Clear. Increasing cloudiness after midnight. Low 13.

Orangeville - Grand Valley - Southern Dufferin County.
Tonight..Clear. Low plus 4.
Monday..Sunny. High 24.
Monday night..Clear. Increasing cloudiness after midnight. Low 11.

Shelburne - Mansfield - Northern Dufferin County.
Tonight..Clear. Low plus 4.
Monday..Sunny. High 25.
Monday night..Clear. Increasing cloudiness after midnight. Low 11.

Innisfil - New Tecumseth - Angus.
Tonight..Clear. Low plus 2.
Monday..Sunny. High 25. Humidex 28.
Monday night..A few clouds. Low 11.

Saugeen Shores - Kincardine - Southern Bruce County.
Tonight..Clear. Low 6.
Monday..Sunny. High 23.
Monday night..Clear. Increasing cloudiness after midnight. Low 14.

Bruce Peninsula - Sauble Beach - Tobermory.
Tonight..Clear. Wind becoming south 20 km/h late this evening. Low 6.
Monday..Sunny. High 19.
Monday night..Clear. Increasing cloudiness after midnight. Low 11.

Hanover - Dundalk - Southern Grey County.
Tonight..Clear. Low 6.
Monday..Sunny. High 25.
Monday night..Clear. Increasing cloudiness after midnight. Low 15.

Owen Sound - Blue Mountains - Northern Grey County.
Tonight..Clear. Low 6.
Monday..Sunny. High 23.
Monday night..Clear. Low 10 with temperature rising to 14 by morning.

Barrie - Collingwood - Hillsdale.
Tonight..Clear. Low plus 4.
Monday..Sunny. High 22.
Monday night..Clear. Low 8.

Midland - Coldwater - Orr Lake.
Tonight..Clear. Wind south 20 km/h becoming light late this evening.
 Low plus 5.
Monday..Sunny. High 22.
Monday night..Clear. Low 8.

Orillia - Lagoon City - Washago.
Tonight..Clear. Wind southeast 20 km/h becoming light late this
 evening. Low plus 5.
Monday..Sunny. High 24. Humidex 25.
Monday night..Clear. Becoming partly cloudy after midnight. Low 8.

Cobourg - Colborne - Western Northumberland County.
Tonight..Clear. Low plus 3 with risk of frost.
Monday..Sunny. High 21.
Monday night..Clear. Low 8.

Belleville - Quinte West - Eastern Northumberland County.
Tonight..Clear. Low plus 3 with risk of frost.
Monday..Sunny. High 21.
Monday night..Clear. Low 8.

Picton - Sandbanks Park.
Tonight..Clear. Low plus 5.
Monday..Sunny. High 19.
Monday night..Clear. Low 8.

Napanee - Consecon.
Tonight..Clear. Low plus 4.
Monday..Sunny. High 21.
Monday night..Clear. Low 8.

Kingston - Odessa - Frontenac Islands.
Tonight..Clear. Wind southwest 20 km/h becoming light early this
 evening. Low plus 4.
Monday..Sunny. High 21.
Monday night..Clear. Low 8.

Lindsay - Southern Kawartha Lakes.
Tonight..Clear. Low plus 3.
Monday..Sunny. High 25.
Monday night..Clear. Low 8.

Fenelon Falls - Balsam Lake Park - Northern Kawartha Lakes.
Tonight..Clear. Low plus 3.
Monday..Sunny. High 25.
Monday night..Clear. Low 8.

Peterborough City - Lakefield - Southern Peterborough County.
Tonight..Clear. Low plus 3.
Monday..Sunny. High 25.
Monday night..Clear. Low 8.

Apsley - Woodview - Northern Peterborough County.
Tonight..Clear. Low plus 3.
Monday..Sunny. Wind becoming southwest 20 km/h late in the morning.
 High 25.
Monday night..Clear. Low 8.

Stirling - Tweed - Madoc.
Tonight..Clear. Low plus 3 with risk of frost.
Monday..Sunny. Wind becoming southwest 20 km/h late in the morning.
 High 25. Humidex 26.
Monday night..Clear. Low 9.

Tamworth - Sydenham - South Frontenac.
Tonight..Clear. Low plus 3 with risk of frost.
Monday..Sunny. Wind south 20 km/h becoming light late in the morning.
 High 24. Humidex 25.
Monday night..Clear. Low 9.

Kaladar - Bannockburn - Bon Echo Park.
Tonight..Clear. Low plus 2.
Monday..Sunny. Wind becoming southwest 20 km/h late in the morning.
 High 25.
Monday night..Clear. Low 6.

Bancroft - Hastings Highlands - Denbigh.
Tonight..Clear. Low plus 2.
Monday..Sunny. Wind becoming southwest 20 km/h in the morning.
 High 26.
Monday night..Clear. Low 6.

Gananoque - Mallorytown.
Tonight..Clear. Low plus 4.
Monday..Sunny. Wind becoming southwest 20 km/h gusting to 40 in the
 morning. High 23.
Monday night..Clear. Low 8.

Brockville - Prescott.
Tonight..Clear. Low plus 4.
Monday..Sunny. Wind becoming southwest 20 km/h gusting to 40 in the
 morning. High 24.
Monday night..Clear. Low 8.

Westport - Charleston Lake.
Tonight..Clear. Low plus 4.
Monday..Sunny. Wind becoming southwest 20 km/h in the morning.
 High 24.
Monday night..Clear. Low 8.

Merrickville-Wolford - Kemptville.
Tonight..Clear. Becoming partly cloudy near midnight. Low plus 4.
Monday..Sunny. Wind becoming southwest 20 km/h in the morning.
 High 24.
Monday night..Clear. Low 8.

Ottawa North - Kanata - Orl�ans.
Tonight..Clear. Increasing cloudiness late this evening. Low plus 5.
Monday..A mix of sun and cloud. Clearing near noon. Wind becoming
 southwest 20 km/h gusting to 40 in the morning. High 23.
Monday night..Clear. Low 10.

Ottawa South - Richmond - Metcalfe.
Tonight..Clear. Increasing cloudiness late this evening. Low plus 5.
Monday..A mix of sun and cloud. Clearing near noon. Wind becoming
 southwest 20 km/h gusting to 40 in the morning. High 24.
Monday night..Clear. Low 10.

Gatineau.
Tonight..Clear. Increasing cloudiness late this evening. Low plus 5.
Monday..A mix of sun and cloud. High 23.
Monday night..Clear. Low 10.

Prescott and Russell.
Tonight..Clear. Increasing cloudiness late this evening. Low plus 5.
Monday..A mix of sun and cloud. Clearing near noon. Wind becoming
 southwest 20 km/h late in the morning. High 23.
Monday night..Clear. Low 11.

Morrisburg - Long Sault.
Tonight..Clear. Becoming partly cloudy near midnight. Low plus 5.
Monday..A mix of sun and cloud. Clearing near noon. Wind becoming
 southwest 20 km/h gusting to 40 in the morning. High 23.
Monday night..Clear. Low 10.

Cornwall - Lancaster.
Tonight..Clear. Increasing cloudiness near midnight. Low plus 5.
Monday..A mix of sun and cloud. Clearing near noon. Wind becoming
 west 20 km/h gusting to 40 in the morning. High 23.
Monday night..Clear. Low 10.

Winchester - Newington.
Tonight..Clear. Becoming partly cloudy near midnight. Low plus 5.
Monday..A mix of sun and cloud. Clearing near noon. Wind becoming
 southwest 20 km/h gusting to 40 in the morning. High 23.
Monday night..Clear. Low 10.

Maxville - Alexandria.
Tonight..Clear. Increasing cloudiness near midnight. Wind west
 20 km/h becoming light early this evening. Low plus 5.
Monday..A mix of sun and cloud. Clearing near noon. Wind becoming
 west 20 km/h gusting to 40 in the morning. High 23.
Monday night..Clear. Low 10.

Plevna - Sharbot Lake - Western Lanark County.
Tonight..Clear. Low plus 3 with risk of frost.
Monday..Sunny. Wind becoming southwest 20 km/h in the morning.
 High 25.
Monday night..Clear. Low 10.

Smiths Falls - Perth - Eastern Lanark County.
Tonight..Clear. Becoming partly cloudy near midnight. Low plus 4.
Monday..A mix of sun and cloud. Becoming sunny near noon. Wind
 becoming southwest 20 km/h gusting to 40 in the morning. High 25.
Monday night..Clear. Low 10.

Port Carling - Port Severn.
Tonight..Clear. Low plus 5.
Monday..Sunny. High 22.
Monday night..Clear. Becoming partly cloudy after midnight. Low 10.

Bracebridge - Gravenhurst.
Tonight..Clear. Low plus 4.
Monday..Sunny. High 24.
Monday night..Clear. Low 10.

Town of Parry Sound - Rosseau - Killbear Park.
Tonight..Clear. Wind becoming south 20 km/h this evening. Low plus 4.
Monday..Sunny. High 22.
Monday night..Clear. Low 10.

Huntsville - Baysville.
Tonight..Clear. Low plus 4.
Monday..Sunny. High 23.
Monday night..Clear. Low 8.

Haliburton - Minden - Southern Haliburton County.
Tonight..Clear. Low plus 3.
Monday..Sunny. High 24.
Monday night..Clear. Low 9.

Oxtongue Lake - Fort Irwin - Northern Haliburton County.
Tonight..Clear. Low plus 3.
Monday..Sunny. Wind becoming southwest 20 km/h in the morning.
 High 24.
Monday night..Clear. Low 7.

Barry's Bay - Killaloe.
Tonight..A few clouds. Low plus 5.
Monday..A mix of sun and cloud. Becoming sunny near noon. Wind
 southwest 20 km/h. High 25.
Monday night..Clear. Low 6.

Renfrew - Arnprior - Calabogie.
Tonight..A few clouds. Low plus 5.
Monday..A mix of sun and cloud. Becoming sunny near noon. Wind
 becoming west 20 km/h late in the morning. High 24.
Monday night..Clear. Low 6.

Petawawa - Pembroke - Cobden.
Tonight..Partly cloudy. Low plus 5.
Monday..Clearing. High 24.
Monday night..Clear. Low 6.

Western Algonquin Park - Lake of Two Rivers.
Tonight..Partly cloudy. Becoming clear this evening. Low 6.
Monday..Sunny. Wind southwest 20 km/h becoming light late in the
 morning. High 23.
Monday night..Clear. Low 6.

Deep River - Whitney - Eastern Algonquin Park.
Tonight..Partly cloudy. Becoming clear this evening. Low 6.
Monday..Sunny. Wind becoming southwest 20 km/h in the morning.
 High 24.
Monday night..Clear. Low 6.

Bayfield Inlet - Dunchurch.
Tonight..Clear. Low plus 5.
Monday..Sunny. High 22.
Monday night..Clear. Low 10.

South River - Burk's Falls.
Tonight..Partly cloudy. Becoming clear this evening. Low plus 5.
Monday..Sunny. High 23.
Monday night..Clear. Low 8.

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