FPCN11 CWTO 181500
Forecasts for Southern Ontario and the National Capital Region issued
by Environment Canada at 11:00 a.m. EDT Wednesday 18 September 2024
for today and Thursday.
The next scheduled forecast will be issued at 3:30 p.m. EDT.

City of Toronto.
Today..Mainly sunny. High 26. Humidex 31. UV index 6 or high.
Tonight..A few clouds. Low 16.
Thursday..Sunny. High 26. Humidex 30. UV index 6 or high.

Windsor - Leamington - Essex County.
Today..Mainly sunny. High 25. Humidex 30. UV index 6 or high.
Tonight..A few clouds. Low 15.
Thursday..Sunny. High 27. Humidex 33. UV index 6 or high.

Chatham-Kent - Rondeau Park.
Today..Mainly sunny. High 25. Humidex 30. UV index 6 or high.
Tonight..A few clouds. Low 15.
Thursday..Sunny. High 27. Humidex 33. UV index 6 or high.

Sarnia - Petrolia - Western Lambton County.
Today..Mainly sunny. High 26. Humidex 31. UV index 6 or high.
Tonight..A few clouds. Fog patches developing before morning. Low 13.
Thursday..Sunny. Fog patches dissipating in the morning. High 26.
 Humidex 30. UV index 6 or high.

Watford - Pinery Park - Eastern Lambton County.
Today..Mainly sunny. High 26. Humidex 31. UV index 6 or high.
Tonight..A few clouds. Fog patches developing before morning. Low 13.
Thursday..Sunny. Fog patches dissipating in the morning. High 27.
 Humidex 31. UV index 6 or high.

Rodney - Shedden - Western Elgin County.
Today..Mainly sunny. High 26. Humidex 31. UV index 6 or high.
Tonight..A few clouds. Low 13.
Thursday..Sunny. High 26. Humidex 32. UV index 6 or high.

St. Thomas - Aylmer - Eastern Elgin County.
Today..Mainly sunny. High 26. Humidex 31. UV index 6 or high.
Tonight..A few clouds. Low 13.
Thursday..Sunny. High 26. Humidex 32. UV index 6 or high.

Strathroy - Komoka - Western Middlesex County.
Today..Mainly sunny. High 26. Humidex 30. UV index 6 or high.
Tonight..A few clouds. Low 13.
Thursday..Sunny. High 27. Humidex 32. UV index 6 or high.

London - Parkhill - Eastern Middlesex County.
Today..Mainly sunny. High 27. Humidex 31. UV index 6 or high.
Tonight..A few clouds. Low 13.
Thursday..Sunny. High 27. Humidex 32. UV index 6 or high.

Simcoe - Delhi - Norfolk.
Today..Mainly sunny. High 26. Humidex 31. UV index 6 or high.
Tonight..A few clouds. Low 12.
Thursday..Sunny. High 26. Humidex 30. UV index 6 or high.

Dunnville - Caledonia - Haldimand.
Today..A mix of sun and cloud. High 26. Humidex 31. UV index 6 or
 high.
Tonight..A few clouds. Fog patches developing overnight. Low 14.
Thursday..Sunny. Fog patches dissipating in the morning. High 26.
 Humidex 30. UV index 6 or high.

Woodstock - Tillsonburg - Oxford County.
Today..Mainly sunny. High 25. Humidex 29. UV index 6 or high.
Tonight..A few clouds. Low 12.
Thursday..Sunny. High 27. Humidex 32. UV index 6 or high.

Brantford - County of Brant.
Today..Mainly sunny. High 25. Humidex 29. UV index 6 or high.
Tonight..A few clouds. Low 12.
Thursday..Sunny. High 27. Humidex 32. UV index 6 or high.

Niagara Falls - Welland - Southern Niagara Region.
Today..A mix of sun and cloud. High 25. Humidex 30. UV index 6 or
 high.
Tonight..A few clouds. Fog patches developing overnight. Low 16.
Thursday..Mainly sunny. Fog patches dissipating in the morning.
 High 26. Humidex 31. UV index 6 or high.

St. Catharines - Grimsby - Northern Niagara Region.
Today..A mix of sun and cloud. High 25. Humidex 30. UV index 6 or
 high.
Tonight..A few clouds. Fog patches developing overnight. Low 14.
Thursday..Mainly sunny. Fog patches dissipating in the morning.
 High 26. Humidex 31. UV index 6 or high.

City of Hamilton.
Today..Mainly sunny. High 25. Humidex 30. UV index 6 or high.
Tonight..A few clouds. Low 15.
Thursday..Sunny. High 25. Humidex 31. UV index 6 or high.

Burlington - Oakville.
Today..Mainly sunny. High 26. Humidex 31. UV index 6 or high.
Tonight..A few clouds. Low 14.
Thursday..Sunny. High 26. Humidex 30. UV index 6 or high.

Halton Hills - Milton.
Today..Mainly sunny. High 26. Humidex 31. UV index 6 or high.
Tonight..A few clouds. Low 14.
Thursday..Sunny. High 26. Humidex 30. UV index 6 or high.

Mississauga - Brampton.
Today..Mainly sunny. High 26. Humidex 31. UV index 6 or high.
Tonight..A few clouds. Low 14.
Thursday..Sunny. High 26. Humidex 30. UV index 6 or high.

Caledon.
Today..Mainly sunny. High 26. Humidex 31. UV index 6 or high.
Tonight..A few clouds. Low 14.
Thursday..Sunny. High 26. Humidex 30. UV index 6 or high.

Vaughan - Richmond Hill - Markham.
Today..Mainly sunny. High 26. Humidex 30. UV index 6 or high.
Tonight..A few clouds. Low 12.
Thursday..Sunny. High 28. Humidex 31. UV index 6 or high.

Newmarket - Georgina - Northern York Region.
Today..Mainly sunny. High 26. Humidex 30. UV index 6 or high.
Tonight..A few clouds. Low 12.
Thursday..Sunny. High 27. Humidex 30. UV index 6 or high.

Pickering - Oshawa - Southern Durham Region.
Today..Mainly sunny. High 26. Humidex 30. UV index 6 or high.
Tonight..A few clouds. Low 12.
Thursday..Sunny. High 28. Humidex 31. UV index 6 or high.

Uxbridge - Beaverton - Northern Durham Region.
Today..Mainly sunny. High 26. Humidex 30. UV index 6 or high.
Tonight..A few clouds. Low 12.
Thursday..Sunny. High 27. Humidex 30. UV index 6 or high.

Goderich - Bluewater - Southern Huron County.
Today..Mainly sunny. High 27. Humidex 29. UV index 6 or high.
Tonight..A few clouds. Low 12.
Thursday..Sunny. High 28. Humidex 30. UV index 6 or high.

Wingham - Blyth - Northern Huron County.
Today..Mainly sunny. High 27. Humidex 29. UV index 6 or high.
Tonight..A few clouds. Low 12.
Thursday..Sunny. High 27. Humidex 29. UV index 6 or high.

Stratford - Mitchell - Southern Perth County.
Today..Sunny. High 27. Humidex 29. UV index 6 or high.
Tonight..Clear. Fog patches developing before morning. Low 12.
Thursday..Sunny. Fog patches dissipating in the morning. High 27.
 Humidex 30. UV index 6 or high.

Listowel - Milverton - Northern Perth County.
Today..Sunny. High 27. Humidex 29. UV index 6 or high.
Tonight..Clear. Low 12.
Thursday..Sunny. High 27. Humidex 30. UV index 6 or high.

Kitchener - Cambridge - Region of Waterloo.
Today..Mainly sunny. High 26. Humidex 31. UV index 6 or high.
Tonight..A few clouds. Fog patches developing before morning. Low 12.
Thursday..Sunny. Fog patches dissipating in the morning. High 27.
 Humidex 31. UV index 6 or high.

Guelph - Erin - Southern Wellington County.
Today..Mainly sunny. High 26. Humidex 31. UV index 6 or high.
Tonight..A few clouds. Fog patches developing before morning. Low 12.
Thursday..Sunny. Fog patches dissipating in the morning. High 27.
 Humidex 31. UV index 6 or high.

Mount Forest - Arthur - Northern Wellington County.
Today..Sunny. High 26. Humidex 29. UV index 6 or high.
Tonight..Clear. Low 12.
Thursday..Sunny. High 27. Humidex 31. UV index 6 or high.

Orangeville - Grand Valley - Southern Dufferin County.
Today..Sunny. High 25. Humidex 30. UV index 6 or high.
Tonight..Clear. Low 12.
Thursday..Sunny. High 26. Humidex 29. UV index 6 or high.

Shelburne - Mansfield - Northern Dufferin County.
Today..Sunny. High 25. Humidex 30. UV index 6 or high.
Tonight..Clear. Low 12.
Thursday..Sunny. High 26. Humidex 29. UV index 6 or high.

Innisfil - New Tecumseth - Angus.
Today..Sunny. High 26. Humidex 31. UV index 6 or high.
Tonight..Clear. Low 11.
Thursday..Sunny. High 27. Humidex 31. UV index 6 or high.

Saugeen Shores - Kincardine - Southern Bruce County.
Today..Sunny. High 27. Humidex 29. UV index 6 or high.
Tonight..Clear. Low 12.
Thursday..Sunny. High 27. Humidex 29. UV index 5 or moderate.

Bruce Peninsula - Sauble Beach - Tobermory.
Today..Sunny. High 25. Humidex 27. UV index 6 or high.
Tonight..Clear. Low 12.
Thursday..Sunny. High 25. Humidex 28. UV index 5 or moderate.

Hanover - Dundalk - Southern Grey County.
Today..Sunny. High 27. Humidex 29. UV index 6 or high.
Tonight..Clear. Low 12.
Thursday..Sunny. High 28. Humidex 30. UV index 5 or moderate.

Owen Sound - Blue Mountains - Northern Grey County.
Today..Sunny. High 28. Humidex 30. UV index 6 or high.
Tonight..Clear. Low 12.
Thursday..Sunny. High 25. Humidex 31. UV index 5 or moderate.

Barrie - Collingwood - Hillsdale.
Today..Sunny. High 26. Humidex 30. UV index 6 or high.
Tonight..Clear. Low 12.
Thursday..Sunny. High 26. Humidex 30. UV index 6 or high.

Midland - Coldwater - Orr Lake.
Today..Sunny. High 26. Humidex 30. UV index 6 or high.
Tonight..Clear. Low 12.
Thursday..Sunny. High 26. Humidex 30. UV index 6 or high.

Orillia - Lagoon City - Washago.
Today..Sunny. High 26. Humidex 30. UV index 6 or high.
Tonight..Clear. Fog patches developing overnight. Low 12.
Thursday..Sunny. Fog patches dissipating in the morning. High 26.
 Humidex 30. UV index 6 or high.

Cobourg - Colborne - Western Northumberland County.
Today..A mix of sun and cloud. High 26. Humidex 31. UV index 6 or
 high.
Tonight..A few clouds. Low 13.
Thursday..A mix of sun and cloud. High 27. Humidex 33. UV index 6 or
 high.

Belleville - Quinte West - Eastern Northumberland County.
Today..A mix of sun and cloud. High 26. Humidex 31. UV index 6 or
 high.
Tonight..A few clouds. Low 13.
Thursday..A mix of sun and cloud. High 27. Humidex 33. UV index 6 or
 high.

Picton - Sandbanks Park.
Today..A mix of sun and cloud. High 26. Humidex 31. UV index 6 or
 high.
Tonight..A few clouds. Low 13.
Thursday..A mix of sun and cloud. High 27. Humidex 33. UV index 6 or
 high.

Napanee - Consecon.
Today..A mix of sun and cloud. High 26. Humidex 31. UV index 6 or
 high.
Tonight..A few clouds. Low 13.
Thursday..A mix of sun and cloud. High 27. Humidex 33. UV index 6 or
 high.

Kingston - Odessa - Frontenac Islands.
Today..A mix of sun and cloud. High 26. Humidex 31. UV index 6 or
 high.
Tonight..A few clouds. Low 13.
Thursday..A mix of sun and cloud. High 27. Humidex 33. UV index 6 or
 high.

Lindsay - Southern Kawartha Lakes.
Today..Mainly sunny. High 27. Humidex 31. UV index 6 or high.
Tonight..A few clouds. Fog patches developing overnight. Low 10.
Thursday..Mainly sunny. Fog patches dissipating in the morning.
 High 27. Humidex 30. UV index 6 or high.

Fenelon Falls - Balsam Lake Park - Northern Kawartha Lakes.
Today..Mainly sunny. High 27. Humidex 31. UV index 6 or high.
Tonight..A few clouds. Fog patches developing overnight. Low 9.
Thursday..Mainly sunny. Fog patches dissipating in the morning.
 High 27. Humidex 30. UV index 6 or high.

Peterborough City - Lakefield - Southern Peterborough County.
Today..Mainly sunny. High 27. Humidex 31. UV index 6 or high.
Tonight..A few clouds. Fog patches developing overnight. Low 10.
Thursday..Mainly sunny. Fog patches dissipating in the morning.
 High 27. Humidex 30. UV index 6 or high.

Apsley - Woodview - Northern Peterborough County.
Today..Mainly sunny. High 27. Humidex 31. UV index 6 or high.
Tonight..A few clouds. Fog patches developing overnight. Low 9.
Thursday..Mainly sunny. Fog patches dissipating in the morning.
 High 27. Humidex 30. UV index 6 or high.

Stirling - Tweed - Madoc.
Today..A mix of sun and cloud. High 27. Humidex 32. UV index 6 or
 high.
Tonight..A few clouds. Fog patches developing overnight. Low 12.
Thursday..Mainly sunny. Fog patches dissipating in the morning.
 High 28. Humidex 33. UV index 6 or high.

Tamworth - Sydenham - South Frontenac.
Today..A mix of sun and cloud. High 27. Humidex 32. UV index 6 or
 high.
Tonight..A few clouds. Fog patches developing overnight. Low 12.
Thursday..Mainly sunny. Fog patches dissipating in the morning.
 High 28. Humidex 33. UV index 6 or high.

Kaladar - Bannockburn - Bon Echo Park.
Today..Mainly sunny. High 27. Humidex 32. UV index 6 or high.
Tonight..A few clouds. Fog patches developing overnight. Low 9.
Thursday..A mix of sun and cloud. Fog patches dissipating in the
 morning. High 28. Humidex 33. UV index 6 or high.

Bancroft - Hastings Highlands - Denbigh.
Today..Mainly sunny. High 27. Humidex 32. UV index 6 or high.
Tonight..A few clouds. Fog patches developing overnight. Low 8.
Thursday..A mix of sun and cloud. Fog patches dissipating in the
 morning. High 28. Humidex 31. UV index 5 or moderate.

Gananoque - Mallorytown.
Today..A mix of sun and cloud. High 27. Humidex 32. UV index 6 or
 high.
Tonight..A few clouds. Fog patches developing overnight. Low 13.
Thursday..A mix of sun and cloud. Fog patches dissipating in the
 morning. High 27. Humidex 32. UV index 6 or high.

Brockville - Prescott.
Today..A mix of sun and cloud. High 27. Humidex 32. UV index 6 or
 high.
Tonight..A few clouds. Fog patches developing overnight. Low 13.
Thursday..A mix of sun and cloud. Fog patches dissipating in the
 morning. High 27. Humidex 32. UV index 6 or high.

Westport - Charleston Lake.
Today..A mix of sun and cloud. High 27. Humidex 32. UV index 6 or
 high.
Tonight..A few clouds. Fog patches developing overnight. Low 13.
Thursday..Mainly sunny. Fog patches dissipating in the morning.
 High 27. Humidex 32. UV index 6 or high.

Merrickville-Wolford - Kemptville.
Today..A mix of sun and cloud. High 27. Humidex 32. UV index 6 or
 high.
Tonight..A few clouds. Fog patches developing overnight. Low 13.
Thursday..Mainly sunny. Fog patches dissipating in the morning.
 High 27. Humidex 32. UV index 6 or high.

Ottawa North - Kanata - Orl‚ans.
Today..A mix of sun and cloud. High 28. Humidex 32. UV index 6 or
 high.
Tonight..A few clouds. Fog patches developing overnight. Low 12.
Thursday..A mix of sun and cloud. Fog patches dissipating in the
 morning. High 28. Humidex 33. UV index 5 or moderate.

Ottawa South - Richmond - Metcalfe.
Today..A mix of sun and cloud. High 28. Humidex 32. UV index 6 or
 high.
Tonight..A few clouds. Fog patches developing overnight. Low 12.
Thursday..A mix of sun and cloud. Fog patches dissipating in the
 morning. High 28. Humidex 33. UV index 5 or moderate.

Gatineau.
Today..A mix of sun and cloud. High 28. Humidex 32. UV index 6 or
 high.
Tonight..A few clouds. Fog patches developing overnight. Low 14.
Thursday..A mix of sun and cloud. Fog patches dissipating in the
 morning. High 28. Humidex 32. UV index 6 or high.

Prescott and Russell.
Today..A mix of sun and cloud. High 28. Humidex 33. UV index 6 or
 high.
Tonight..A few clouds. Fog patches developing overnight. Low 13.
Thursday..A mix of sun and cloud. Fog patches dissipating in the
 morning. High 28. Humidex 33. UV index 6 or high.

Morrisburg - Long Sault.
Today..A mix of sun and cloud. High 28. Humidex 33. UV index 6 or
 high.
Tonight..A few clouds. Fog patches developing overnight. Low 12.
Thursday..Mainly cloudy. Fog patches dissipating in the morning.
 High 28. Humidex 33. UV index 5 or moderate.

Cornwall - Lancaster.
Today..A mix of sun and cloud. High 28. Humidex 33. UV index 6 or
 high.
Tonight..A few clouds. Fog patches developing overnight. Low 12.
Thursday..Mainly cloudy. Fog patches dissipating in the morning.
 High 28. Humidex 33. UV index 5 or moderate.

Winchester - Newington.
Today..A mix of sun and cloud. High 28. Humidex 33. UV index 6 or
 high.
Tonight..A few clouds. Fog patches developing overnight. Low 12.
Thursday..Mainly cloudy. Fog patches dissipating in the morning.
 High 28. Humidex 33. UV index 5 or moderate.

Maxville - Alexandria.
Today..A mix of sun and cloud. High 28. Humidex 33. UV index 6 or
 high.
Tonight..A few clouds. Fog patches developing overnight. Low 12.
Thursday..Mainly cloudy. Fog patches dissipating in the morning.
 High 28. Humidex 33. UV index 5 or moderate.

Plevna - Sharbot Lake - Western Lanark County.
Today..A mix of sun and cloud. High 28. Humidex 32. UV index 6 or
 high.
Tonight..A few clouds. Fog patches developing overnight. Low 11.
Thursday..Mainly sunny. Fog patches dissipating in the morning.
 High 28. Humidex 33. UV index 5 or moderate.

Smiths Falls - Perth - Eastern Lanark County.
Today..A mix of sun and cloud. High 28. Humidex 32. UV index 6 or
 high.
Tonight..A few clouds. Fog patches developing overnight. Low 11.
Thursday..Mainly sunny. Fog patches dissipating in the morning.
 High 28. Humidex 33. UV index 5 or moderate.

Port Carling - Port Severn.
Today..Mainly sunny. High 27. Humidex 31. UV index 6 or high.
Tonight..A few clouds. Fog patches developing overnight. Low 9.
Thursday..Sunny. Fog patches dissipating in the morning. High 27.
 Humidex 30. UV index 5 or moderate.

Bracebridge - Gravenhurst.
Today..Sunny. High 26. Humidex 30. UV index 6 or high.
Tonight..Clear. Fog patches developing overnight. Low 9.
Thursday..Sunny. Fog patches dissipating in the morning. High 27.
 Humidex 30. UV index 5 or moderate.

Town of Parry Sound - Rosseau - Killbear Park.
Today..Sunny. High 27. Humidex 31. UV index 5 or moderate.
Tonight..Clear. Fog patches developing overnight. Low 12.
Thursday..Sunny. Fog patches dissipating in the morning. High 27.
 Humidex 30. UV index 5 or moderate.

Huntsville - Baysville.
Today..Sunny. High 27. Humidex 31. UV index 5 or moderate.
Tonight..Clear. Fog patches developing overnight. Low 12.
Thursday..Sunny. Fog patches dissipating in the morning. High 27.
 Humidex 30. UV index 5 or moderate.

Haliburton - Minden - Southern Haliburton County.
Today..Sunny. High 27. Humidex 31. UV index 6 or high.
Tonight..Clear. Fog patches developing overnight. Low 8.
Thursday..Sunny. Fog patches dissipating in the morning. High 26.
 Humidex 29. UV index 5 or moderate.

Oxtongue Lake - Fort Irwin - Northern Haliburton County.
Today..Sunny. High 27. Humidex 31. UV index 6 or high.
Tonight..Clear. Fog patches developing overnight. Low 8.
Thursday..Sunny. Fog patches dissipating in the morning. High 26.
 Humidex 29. UV index 5 or moderate.

Barry's Bay - Killaloe.
Today..Mainly sunny. High 27. Humidex 31. UV index 6 or high.
Tonight..A few clouds. Fog patches developing overnight. Low 11.
Thursday..Sunny. Fog patches dissipating in the morning. High 28.
 Humidex 33. UV index 5 or moderate.

Renfrew - Arnprior - Calabogie.
Today..Mainly sunny. High 27. Humidex 31. UV index 6 or high.
Tonight..A few clouds. Fog patches developing overnight. Low 11.
Thursday..Sunny. Fog patches dissipating in the morning. High 28.
 Humidex 33. UV index 5 or moderate.

Petawawa - Pembroke - Cobden.
Today..Mainly sunny. High 27. Humidex 31. UV index 6 or high.
Tonight..A few clouds. Fog patches developing overnight. Low 11.
Thursday..Sunny. Fog patches dissipating in the morning. High 28.
 Humidex 33. UV index 5 or moderate.

Western Algonquin Park - Lake of Two Rivers.
Today..Mainly sunny. High 26. Humidex 29. UV index 6 or high.
Tonight..A few clouds. Fog patches developing overnight. Low 8.
Thursday..Sunny. Fog patches dissipating in the morning. High 26.
 Humidex 28. UV index 5 or moderate.

Deep River - Whitney - Eastern Algonquin Park.
Today..Mainly sunny. High 26. Humidex 29. UV index 6 or high.
Tonight..A few clouds. Fog patches developing overnight. Low 8.
Thursday..Sunny. Fog patches dissipating in the morning. High 26.
 Humidex 28. UV index 5 or moderate.

Bayfield Inlet - Dunchurch.
Today..Sunny. High 26. Humidex 29. UV index 6 or high.
Tonight..Clear. Fog patches developing overnight. Low 12.
Thursday..Sunny. Fog patches dissipating in the morning. High 26.
 Humidex 29. UV index 5 or moderate.

South River - Burk's Falls.
Today..Sunny. High 26. Humidex 29. UV index 6 or high.
Tonight..Clear. Fog patches developing overnight. Low 12.
Thursday..Sunny. Fog patches dissipating in the morning. High 26.
 Humidex 29. UV index 5 or moderate.

End
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