FPCN11 CWTO 311930
Forecasts for Southern Ontario and the National Capital Region issued
by Environment Canada at 3:30 p.m. EDT Friday 31 May 2024 for tonight
Saturday and Saturday night.
The next scheduled forecast will be issued at 5:00 a.m. EDT Saturday.

City of Toronto.
Tonight..Clear. Wind southwest 20 km/h gusting to 40 becoming light
 this evening. Low 12.
Saturday..Sunny. High 24. UV index 8 or very high.
Saturday night..Partly cloudy. Low 16.

Windsor - Leamington - Essex County.
Tonight..Clear. Low 13.
Saturday..Sunny. Wind becoming south 30 km/h in the morning. High 25.
 UV index 8 or very high.
Saturday night..Becoming cloudy in the evening. 40 percent chance of
 showers overnight. Wind south 20 km/h becoming light early in the
 evening. Low 17.

Chatham-Kent - Rondeau Park.
Tonight..Clear. Wind southwest 20 km/h becoming light early this
 evening. Low 11.
Saturday..Sunny. High 24. UV index 8 or very high.
Saturday night..Partly cloudy. Becoming cloudy near midnight.
 40 percent chance of showers overnight. Low 16.

Sarnia - Petrolia - Western Lambton County.
Tonight..Clear. Low 8.
Saturday..Sunny. Wind becoming south 30 km/h in the morning then
 light late in the afternoon. High 25. UV index 8 or very high.
Saturday night..Becoming cloudy in the evening. 30 percent chance of
 showers overnight. Low 16.

Watford - Pinery Park - Eastern Lambton County.
Tonight..Clear. Low 8.
Saturday..Sunny. High 25. UV index 8 or very high.
Saturday night..A few clouds. Increasing cloudiness after midnight
 then 30 percent chance of showers overnight. Low 16.

Rodney - Shedden - Western Elgin County.
Tonight..Clear. Low 10.
Saturday..Sunny. High 24. UV index 8 or very high.
Saturday night..Partly cloudy. Becoming cloudy near midnight.
 30 percent chance of showers before morning. Low 16.

St. Thomas - Aylmer - Eastern Elgin County.
Tonight..Clear. Low 11.
Saturday..Sunny. High 24 except 17 near Lake Erie. UV index 8 or very
 high.
Saturday night..Partly cloudy. Becoming cloudy after midnight.
 30 percent chance of showers before morning. Low 16.

Strathroy - Komoka - Western Middlesex County.
Tonight..Clear. Low 7.
Saturday..Sunny. Wind becoming south 20 km/h early in the afternoon.
 High 25. UV index 8 or very high.
Saturday night..Increasing cloudiness early in the evening.
 30 percent chance of showers before morning. Low 15.

London - Parkhill - Eastern Middlesex County.
Tonight..Clear. Low 7.
Saturday..Sunny. High 25. UV index 8 or very high.
Saturday night..Partly cloudy. Becoming cloudy after midnight.
 30 percent chance of showers before morning. Low 15.

Simcoe - Delhi - Norfolk.
Tonight..Clear. Low 8.
Saturday..Sunny. High 25 except 17 near Lake Erie. Humidex 27. UV
 index 8 or very high.
Saturday night..A few clouds. Increasing cloudiness after midnight.
 Low 14.

Dunnville - Caledonia - Haldimand.
Tonight..Clear. Low 9.
Saturday..Sunny. High 25 except 17 near Lake Erie. UV index 8 or very
 high.
Saturday night..A few clouds. Increasing cloudiness after midnight.
 Low 14.

Woodstock - Tillsonburg - Oxford County.
Tonight..Clear. Low 7.
Saturday..Sunny. High 25. UV index 8 or very high.
Saturday night..Partly cloudy. Becoming cloudy after midnight.
 Low 14.

Brantford - County of Brant.
Tonight..Clear. Low 7.
Saturday..Sunny. High 25. UV index 8 or very high.
Saturday night..Partly cloudy. Low 14.

Niagara Falls - Welland - Southern Niagara Region.
Tonight..Clear. Low 12.
Saturday..Sunny. High 25 except 17 near Lake Erie. UV index 8 or very
 high.
Saturday night..A few clouds. Low 17.

St. Catharines - Grimsby - Northern Niagara Region.
Tonight..Clear. Low 12.
Saturday..Sunny. High 25. UV index 8 or very high.
Saturday night..Clear. Becoming partly cloudy in the evening. Low 14.

City of Hamilton.
Tonight..Clear. Low 9.
Saturday..Sunny. High 26. UV index 8 or very high.
Saturday night..Increasing cloudiness near midnight. Low 14.

Burlington - Oakville.
Tonight..Clear. Low 11.
Saturday..Sunny. High 25. UV index 8 or very high.
Saturday night..Partly cloudy. Low 15.

Halton Hills - Milton.
Tonight..Clear. Low 11.
Saturday..Sunny. High 25. UV index 8 or very high.
Saturday night..Increasing cloudiness in the evening. Low 15.

Mississauga - Brampton.
Tonight..Clear. Low 12.
Saturday..Sunny. High 25. UV index 8 or very high.
Saturday night..Partly cloudy. Low 15.

Caledon.
Tonight..Clear. Low 11.
Saturday..Sunny. High 25. UV index 8 or very high.
Saturday night..Increasing cloudiness early in the evening. Low 15.

Vaughan - Richmond Hill - Markham.
Tonight..Clear. Low 12.
Saturday..Sunny. High 25. UV index 8 or very high.
Saturday night..Partly cloudy. Low 14.

Newmarket - Georgina - Northern York Region.
Tonight..Clear. Low 9.
Saturday..Sunny. High 25. UV index 8 or very high.
Saturday night..Partly cloudy. Low 14.

Pickering - Oshawa - Southern Durham Region.
Tonight..Clear. Wind southwest 20 km/h gusting to 40 becoming light
 early this evening. Low 11.
Saturday..Sunny. High 25. UV index 8 or very high.
Saturday night..Clear. Becoming partly cloudy in the evening. Low 14.

Uxbridge - Beaverton - Northern Durham Region.
Tonight..Clear. Wind northwest 20 km/h becoming light early this
 evening. Low 9.
Saturday..Sunny. High 25. UV index 8 or very high.
Saturday night..Partly cloudy. Low 14.

Goderich - Bluewater - Southern Huron County.
Tonight..Clear. Wind becoming south 20 km/h late this evening.
 Low 12.
Saturday..Mainly sunny. High 25. UV index 8 or very high.
Saturday night..Becoming cloudy late in the evening. 30 percent
 chance of showers before morning. Low 14.

Wingham - Blyth - Northern Huron County.
Tonight..Clear. Low 11.
Saturday..Mainly sunny. Wind becoming south 20 km/h late in the
 morning. High 25. UV index 8 or very high.
Saturday night..Becoming cloudy late in the evening. 30 percent
 chance of showers before morning. Low 14.

Stratford - Mitchell - Southern Perth County.
Tonight..Clear. Low 8.
Saturday..Sunny. High 25. UV index 8 or very high.
Saturday night..Partly cloudy. Becoming cloudy near midnight.
 30 percent chance of showers before morning. Low 14.

Listowel - Milverton - Northern Perth County.
Tonight..Clear. Low 8.
Saturday..Sunny. High 25. UV index 8 or very high.
Saturday night..Partly cloudy. Becoming cloudy near midnight.
 30 percent chance of showers before morning. Low 14.

Kitchener - Cambridge - Region of Waterloo.
Tonight..Clear. Low 6.
Saturday..Sunny. High 25. UV index 8 or very high.
Saturday night..Partly cloudy. Becoming cloudy after midnight.
 Low 13.

Guelph - Erin - Southern Wellington County.
Tonight..Clear. Low 6.
Saturday..Sunny. High 25. UV index 8 or very high.
Saturday night..Partly cloudy. Becoming cloudy after midnight.
 Low 13.

Mount Forest - Arthur - Northern Wellington County.
Tonight..Clear. Low 9.
Saturday..Sunny. High 25. UV index 8 or very high.
Saturday night..Partly cloudy. Becoming cloudy near midnight. Low 13.

Orangeville - Grand Valley - Southern Dufferin County.
Tonight..Clear. Low 10.
Saturday..Sunny. High 25. UV index 8 or very high.
Saturday night..Increasing cloudiness early in the evening. Low 15.

Shelburne - Mansfield - Northern Dufferin County.
Tonight..Clear. Low 10.
Saturday..Sunny. High 25. UV index 8 or very high.
Saturday night..Partly cloudy. Becoming cloudy near midnight. Low 15.

Innisfil - New Tecumseth - Angus.
Tonight..Clear. Low 10.
Saturday..Sunny. High 25. Humidex 26. UV index 8 or very high.
Saturday night..Increasing cloudiness early in the evening. Low 11.

Saugeen Shores - Kincardine - Southern Bruce County.
Tonight..Clear. Low 11.
Saturday..Sunny. Wind becoming south 20 km/h late in the morning.
 High 25. UV index 8 or very high.
Saturday night..Becoming cloudy late in the evening. 30 percent
 chance of showers before morning. Low 14.

Bruce Peninsula - Sauble Beach - Tobermory.
Tonight..Clear. Wind west 20 km/h becoming light early this evening.
 Low 11.
Saturday..Sunny. High 25. UV index 8 or very high.
Saturday night..Mainly cloudy. 30 percent chance of showers before
 morning. Low 14.

Hanover - Dundalk - Southern Grey County.
Tonight..Clear. Low 10.
Saturday..Sunny. High 25. UV index 8 or very high.
Saturday night..Partly cloudy. Becoming cloudy near midnight.
 30 percent chance of showers before morning. Low 14.

Owen Sound - Blue Mountains - Northern Grey County.
Tonight..Clear. Wind west 20 km/h becoming light early this evening.
 Low 11.
Saturday..Sunny. Wind south 20 km/h. High 25. UV index 8 or very
 high.
Saturday night..Mainly cloudy. 30 percent chance of showers before
 morning. Low 14.

Barrie - Collingwood - Hillsdale.
Tonight..Clear. Wind northwest 20 km/h becoming light early this
 evening. Low 10.
Saturday..Sunny. High 25. Humidex 27. UV index 8 or very high.
Saturday night..Partly cloudy. Low 12.

Midland - Coldwater - Orr Lake.
Tonight..Clear. Low 10.
Saturday..Sunny. High 24. Humidex 25. UV index 8 or very high.
Saturday night..Partly cloudy. Becoming cloudy after midnight.
 Low 15.

Orillia - Lagoon City - Washago.
Tonight..Clear. Wind northwest 20 km/h becoming light early this
 evening. Low 11.
Saturday..Sunny. High 24. Humidex 25. UV index 8 or very high.
Saturday night..Partly cloudy. Low 15.

Cobourg - Colborne - Western Northumberland County.
Tonight..Clear. Wind southwest 20 km/h gusting to 40 becoming light
 early this evening. Low 8.
Saturday..Sunny. High 25. Humidex 26. UV index 8 or very high.
Saturday night..A few clouds. Low 11.

Belleville - Quinte West - Eastern Northumberland County.
Tonight..Clear. Wind southwest 20 km/h gusting to 40 becoming light
 early this evening. Low 8.
Saturday..Sunny. High 27. Humidex 28. UV index 8 or very high.
Saturday night..A few clouds. Low 11.

Picton - Sandbanks Park.
Tonight..Clear. Wind southwest 20 km/h gusting to 40 becoming light
 early this evening. Low 8.
Saturday..Sunny. High 24. Humidex 25. UV index 8 or very high.
Saturday night..A few clouds. Low 11.

Napanee - Consecon.
Tonight..Clear. Wind southwest 20 km/h gusting to 40 becoming light
 early this evening. Low 8.
Saturday..Sunny. High 26. Humidex 27. UV index 8 or very high.
Saturday night..A few clouds. Low 11.

Kingston - Odessa - Frontenac Islands.
Tonight..Clear. Wind southwest 20 km/h gusting to 40 becoming light
 this evening. Low 8.
Saturday..Sunny. High 24. Humidex 25. UV index 8 or very high.
Saturday night..A few clouds. Low 11.

Lindsay - Southern Kawartha Lakes.
Tonight..Clear. Wind northwest 20 km/h gusting to 40 becoming light
 early this evening. Low plus 4.
Saturday..Sunny. High 25. Humidex 26. UV index 8 or very high.
Saturday night..Clear. Becoming partly cloudy in the evening. Low 9.

Fenelon Falls - Balsam Lake Park - Northern Kawartha Lakes.
Tonight..Clear. Wind northwest 20 km/h gusting to 40 becoming light
 early this evening. Low plus 4.
Saturday..Sunny. High 25. Humidex 26. UV index 8 or very high.
Saturday night..Clear. Becoming partly cloudy in the evening. Low 9.

Peterborough City - Lakefield - Southern Peterborough County.
Tonight..Clear. Wind northwest 20 km/h gusting to 40 becoming light
 early this evening. Low plus 4.
Saturday..Sunny. High 26. Humidex 27. UV index 8 or very high.
Saturday night..Clear. Becoming partly cloudy in the evening. Low 9.

Apsley - Woodview - Northern Peterborough County.
Tonight..Clear. Wind northwest 20 km/h gusting to 40 becoming light
 early this evening. Low plus 4.
Saturday..Sunny. High 25. Humidex 26. UV index 8 or very high.
Saturday night..Clear. Becoming partly cloudy in the evening. Low 9.

Stirling - Tweed - Madoc.
Tonight..Clear. Wind west 20 km/h gusting to 40 becoming light early
 this evening. Low 7.
Saturday..Sunny. High 27. UV index 8 or very high.
Saturday night..A few clouds. Low 11.

Tamworth - Sydenham - South Frontenac.
Tonight..Clear. Wind northwest 20 km/h gusting to 40 becoming light
 early this evening. Low 7.
Saturday..Sunny. High 27. UV index 8 or very high.
Saturday night..Clear. Low 11.

Kaladar - Bannockburn - Bon Echo Park.
Tonight..Clear. Wind northwest 20 km/h becoming light this evening.
 Low plus 4.
Saturday..Sunny. High 26. Humidex 27. UV index 8 or very high.
Saturday night..Clear. Low 7.

Bancroft - Hastings Highlands - Denbigh.
Tonight..Clear. Low plus 4.
Saturday..Sunny. High 26. Humidex 27. UV index 8 or very high.
Saturday night..A few clouds. Low 7.

Gananoque - Mallorytown.
Tonight..Clear. Low 9.
Saturday..Sunny. High 26. UV index 8 or very high.
Saturday night..Clear. Low 10.

Brockville - Prescott.
Tonight..Clear. Wind northwest 20 km/h becoming light early this
 evening. Low 9.
Saturday..Sunny. High 26. UV index 8 or very high.
Saturday night..Clear. Low 10.

Westport - Charleston Lake.
Tonight..Clear. Wind northwest 20 km/h gusting to 40 becoming light
 early this evening. Low 9.
Saturday..Sunny. High 26. UV index 8 or very high.
Saturday night..Clear. Low 10.

Merrickville-Wolford - Kemptville.
Tonight..Clear. Wind northwest 20 km/h gusting to 40 becoming light
 early this evening. Low 9.
Saturday..Sunny. High 26. UV index 8 or very high.
Saturday night..Clear. Low 10.

Ottawa North - Kanata - Orl‚ans.
Tonight..Clear. Wind northwest 20 km/h gusting to 40 becoming light
 early this evening. Low 9.
Saturday..Sunny. High 26. Humidex 29. UV index 8 or very high.
Saturday night..Clear. Low 12.

Ottawa South - Richmond - Metcalfe.
Tonight..Clear. Wind northwest 20 km/h gusting to 40 becoming light
 early this evening. Low 9.
Saturday..Sunny. High 26. Humidex 29. UV index 8 or very high.
Saturday night..Clear. Low 12.

Gatineau.
Tonight..Clear. Wind northwest 20 km/h gusting to 40 becoming light
 early this evening. Low 7.
Saturday..Sunny. High 26. Humidex 28. UV index 7 or high.
Saturday night..Clear. Low 12.

Prescott and Russell.
Tonight..Clear. Wind northwest 20 km/h gusting to 40 becoming light
 early this evening. Low 9.
Saturday..Sunny. High 26. Humidex 29. UV index 8 or very high.
Saturday night..Clear. Low 11.

Morrisburg - Long Sault.
Tonight..Clear. Wind northwest 20 km/h becoming light early this
 evening. Low 9.
Saturday..Sunny. High 26. UV index 8 or very high.
Saturday night..Clear. Low 10.

Cornwall - Lancaster.
Tonight..Clear. Wind west 20 km/h gusting to 40 becoming light early
 this evening. Low 9.
Saturday..Sunny. High 26. UV index 8 or very high.
Saturday night..Clear. Low 10.

Winchester - Newington.
Tonight..Clear. Wind northwest 20 km/h gusting to 40 becoming light
 early this evening. Low 9.
Saturday..Sunny. High 26. UV index 8 or very high.
Saturday night..Clear. Low 10.

Maxville - Alexandria.
Tonight..Clear. Wind northwest 20 km/h gusting to 40 becoming light
 early this evening. Low 9.
Saturday..Sunny. High 26. UV index 8 or very high.
Saturday night..Clear. Low 10.

Plevna - Sharbot Lake - Western Lanark County.
Tonight..Clear. Wind northwest 20 km/h becoming light early this
 evening. Low 8.
Saturday..Sunny. High 26. Humidex 27. UV index 8 or very high.
Saturday night..Clear. Low 9.

Smiths Falls - Perth - Eastern Lanark County.
Tonight..Clear. Wind northwest 20 km/h gusting to 40 becoming light
 early this evening. Low 8.
Saturday..Sunny. High 26. Humidex 27. UV index 8 or very high.
Saturday night..Clear. Low 9.

Port Carling - Port Severn.
Tonight..Clear. Wind northwest 20 km/h gusting to 40 becoming light
 early this evening. Low 10.
Saturday..Sunny. High 25. Humidex 27. UV index 8 or very high.
Saturday night..Partly cloudy. Becoming cloudy after midnight.
 Low 15.

Bracebridge - Gravenhurst.
Tonight..Clear. Wind northwest 20 km/h gusting to 40 becoming light
 early this evening. Low 7.
Saturday..Sunny. High 25. Humidex 27. UV index 8 or very high.
Saturday night..Clear. Becoming partly cloudy in the evening. Low 11.

Town of Parry Sound - Rosseau - Killbear Park.
Tonight..Clear. Wind west 20 km/h becoming light early this evening.
 Low 8.
Saturday..Sunny. High 24. UV index 8 or very high.
Saturday night..Partly cloudy. Becoming cloudy after midnight.
 Low 13.

Huntsville - Baysville.
Tonight..Clear. Wind west 20 km/h becoming light early this evening.
 Low 7.
Saturday..Sunny. High 24. UV index 8 or very high.
Saturday night..Clear. Becoming partly cloudy in the evening. Low 11.

Haliburton - Minden - Southern Haliburton County.
Tonight..Clear. Wind west 20 km/h becoming light early this evening.
 Low plus 4.
Saturday..Sunny. High 24. Humidex 25. UV index 8 or very high.
Saturday night..Clear. Becoming partly cloudy in the evening. Low 10.

Oxtongue Lake - Fort Irwin - Northern Haliburton County.
Tonight..Clear. Wind northwest 20 km/h becoming light early this
 evening. Low plus 4.
Saturday..Sunny. High 24. Humidex 25. UV index 8 or very high.
Saturday night..Clear. Becoming partly cloudy in the evening. Low 10.

Barry's Bay - Killaloe.
Tonight..Clear. Wind northwest 20 km/h becoming light early this
 evening. Low 6.
Saturday..Sunny. High 27. UV index 8 or very high.
Saturday night..Clear. Becoming partly cloudy overnight. Low 11.

Renfrew - Arnprior - Calabogie.
Tonight..Clear. Wind northwest 20 km/h becoming light early this
 evening. Low 7.
Saturday..Sunny. High 27. UV index 8 or very high.
Saturday night..Clear. Becoming partly cloudy before morning. Low 11.

Petawawa - Pembroke - Cobden.
Tonight..Clear. Wind northwest 20 km/h becoming light early this
 evening. Low 7.
Saturday..Sunny. High 27. UV index 8 or very high.
Saturday night..Clear. Becoming partly cloudy overnight. Low 11.

Western Algonquin Park - Lake of Two Rivers.
Tonight..Clear. Low plus 4.
Saturday..Sunny. High 25. UV index 8 or very high.
Saturday night..A few clouds. Increasing cloudiness after midnight.
 Low 8.

Deep River - Whitney - Eastern Algonquin Park.
Tonight..Clear. Low plus 4.
Saturday..Sunny. High 25. UV index 8 or very high.
Saturday night..Clear. Becoming partly cloudy late in the evening.
 Low 8.

Bayfield Inlet - Dunchurch.
Tonight..Clear. Wind west 20 km/h becoming light early this evening.
 Low 9.
Saturday..Sunny. Wind becoming southwest 20 km/h in the morning.
 High 25. UV index 8 or very high.
Saturday night..A few clouds. Increasing cloudiness after midnight.
 Low 13.

South River - Burk's Falls.
Tonight..Clear. Wind west 20 km/h becoming light early this evening.
 Low 6.
Saturday..Sunny. Wind becoming southwest 20 km/h in the morning.
 High 25. UV index 8 or very high.
Saturday night..A few clouds. Increasing cloudiness after midnight.
 Low 11.

End
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