FPCN11 CWTO 281930
Forecasts for Southern Ontario and the National Capital Region issued
by Environment Canada at 3:30 p.m. EDT Sunday 28 September 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. Low 11.
Monday..Sunny. High 24. Humidex 27. UV index 5 or moderate.
Monday night..Clear. Low 11.

Windsor - Leamington - Essex County.
Tonight..Clear. Fog patches developing after midnight. Wind north
 20 km/h becoming light early this evening. Low 11.
Monday..Sunny. Fog patches dissipating in the morning. High 26.
 Humidex 28. UV index 6 or high.
Monday night..Clear. Fog patches developing overnight. Low 11.

Chatham-Kent - Rondeau Park.
Tonight..Clear. Fog patches developing after midnight. Wind north
 20 km/h becoming light early this evening. Low 11.
Monday..Sunny. Fog patches dissipating in the morning. High 26.
 Humidex 29. UV index 6 or high.
Monday night..Clear. Fog patches developing overnight. Low 11.

Sarnia - Petrolia - Western Lambton County.
Tonight..Clear. Fog patches developing after midnight. Wind north
 20 km/h becoming light early this evening. Low 11.
Monday..Sunny. Fog patches dissipating in the morning. High 25.
 Humidex 28. UV index 6 or high.
Monday night..Clear. Fog patches developing overnight. Low 11.

Watford - Pinery Park - Eastern Lambton County.
Tonight..Clear. Fog patches developing after midnight. Wind north
 20 km/h becoming light early this evening. Low 9.
Monday..Sunny. Fog patches dissipating in the morning. High 25.
 Humidex 28. UV index 6 or high.
Monday night..Clear. Fog patches developing overnight. Low 10.

Rodney - Shedden - Western Elgin County.
Tonight..Clear. Fog patches developing after midnight. Wind north
 20 km/h becoming light early this evening. Low 9.
Monday..Sunny. Fog patches dissipating in the morning. High 25.
 Humidex 28. UV index 6 or high.
Monday night..Clear. Fog patches developing overnight. Low 10.

St. Thomas - Aylmer - Eastern Elgin County.
Tonight..Clear. Fog patches developing after midnight. Wind north
 20 km/h becoming light early this evening. Low 9.
Monday..Sunny. Fog patches dissipating in the morning. High 25.
 Humidex 28. UV index 6 or high.
Monday night..Clear. Fog patches developing overnight. Low 10.

Strathroy - Komoka - Western Middlesex County.
Tonight..Clear. Fog patches developing after midnight. Wind north
 20 km/h becoming light early this evening. Low 9.
Monday..Sunny. Fog patches dissipating in the morning. High 25.
 Humidex 28. UV index 6 or high.
Monday night..Clear. Fog patches developing overnight. Low 10.

London - Parkhill - Eastern Middlesex County.
Tonight..Clear. Fog patches developing after midnight. Wind north
 20 km/h becoming light early this evening. Low 9.
Monday..Sunny. Fog patches dissipating in the morning. High 25.
 Humidex 28. UV index 6 or high.
Monday night..Clear. Fog patches developing overnight. Low 10.

Simcoe - Delhi - Norfolk.
Tonight..Clear. Fog patches developing after midnight. Wind north
 20 km/h becoming light early this evening. Low 9.
Monday..Sunny. Fog patches dissipating in the morning. High 25.
 Humidex 28. UV index 6 or high.
Monday night..Clear. Fog patches developing overnight. Low 10.

Dunnville - Caledonia - Haldimand.
Tonight..Clear. Fog patches developing after midnight. Wind north
 20 km/h becoming light early this evening. Low 10.
Monday..Sunny. Fog patches dissipating in the morning. High 24.
 Humidex 27. UV index 6 or high.
Monday night..Clear. Fog patches developing overnight. Low 11.

Woodstock - Tillsonburg - Oxford County.
Tonight..Clear. Fog patches developing after midnight. Wind north
 20 km/h becoming light early this evening. Low 9.
Monday..Sunny. Fog patches dissipating in the morning. High 25.
 Humidex 28. UV index 6 or high.
Monday night..Clear. Fog patches developing overnight. Low 10.

Brantford - County of Brant.
Tonight..Clear. Fog patches developing after midnight. Wind north
 20 km/h becoming light early this evening. Low 9.
Monday..Sunny. Fog patches dissipating in the morning. High 25.
 Humidex 28. UV index 6 or high.
Monday night..Clear. Fog patches developing overnight. Low 10.

Niagara Falls - Welland - Southern Niagara Region.
Tonight..Clear. Fog patches developing after midnight. Wind north
 20 km/h becoming light early this evening. Low 10.
Monday..Sunny. Fog patches dissipating in the morning. High 24.
 Humidex 27. UV index 6 or high.
Monday night..Clear. Fog patches developing overnight. Low 11.

St. Catharines - Grimsby - Northern Niagara Region.
Tonight..Clear. Fog patches developing after midnight. Wind north
 20 km/h becoming light early this evening. Low 10.
Monday..Sunny. Fog patches dissipating in the morning. High 24.
 Humidex 27. UV index 6 or high.
Monday night..Clear. Fog patches developing overnight. Low 11.

City of Hamilton.
Tonight..Clear. Fog patches developing after midnight. Wind north
 20 km/h becoming light early this evening. Low 10.
Monday..Sunny. Fog patches dissipating in the morning. High 24.
 Humidex 27. UV index 6 or high.
Monday night..Clear. Fog patches developing overnight. Low 11.

Burlington - Oakville.
Tonight..Clear. Low 10.
Monday..Sunny. High 24. Humidex 27. UV index 6 or high.
Monday night..Clear. Low 11.

Halton Hills - Milton.
Tonight..Clear. Low 10.
Monday..Sunny. High 24. Humidex 27. UV index 6 or high.
Monday night..Clear. Low 10.

Mississauga - Brampton.
Tonight..Clear. Low 10.
Monday..Sunny. High 24. Humidex 27. UV index 6 or high.
Monday night..Clear. Low 10.

Caledon.
Tonight..Clear. Fog patches developing after midnight. Wind northwest
 20 km/h becoming light early this evening. Low 7.
Monday..Sunny. Fog patches dissipating in the morning. High 23. UV
 index 6 or high.
Monday night..Clear. Fog patches developing overnight. Low 8.

Vaughan - Richmond Hill - Markham.
Tonight..Clear. Low 10.
Monday..Sunny. High 24. Humidex 27. UV index 6 or high.
Monday night..Clear. Low 10.

Newmarket - Georgina - Northern York Region.
Tonight..Clear. Fog patches developing after midnight. Wind northwest
 20 km/h becoming light early this evening. Low 7.
Monday..Sunny. Fog patches dissipating in the morning. High 24.
 Humidex 25. UV index 6 or high.
Monday night..Clear. Fog patches developing overnight. Low 8.

Pickering - Oshawa - Southern Durham Region.
Tonight..Clear. Low 10.
Monday..Sunny. High 24. Humidex 27. UV index 6 or high.
Monday night..Clear. Low 10.

Uxbridge - Beaverton - Northern Durham Region.
Tonight..Clear. Fog patches developing after midnight. Wind northwest
 20 km/h becoming light early this evening. Low 7.
Monday..Sunny. Fog patches dissipating in the morning. High 24.
 Humidex 25. UV index 6 or high.
Monday night..Clear. Fog patches developing overnight. Low 8.

Goderich - Bluewater - Southern Huron County.
Tonight..Clear. Fog patches developing after midnight. Low 9.
Monday..Sunny. Fog patches dissipating in the morning. High 24.
 Humidex 27. UV index 5 or moderate.
Monday night..Clear. Fog patches developing overnight. Low 9.

Wingham - Blyth - Northern Huron County.
Tonight..Clear. Fog patches developing after midnight. Low 9.
Monday..Sunny. Fog patches dissipating in the morning. High 24.
 Humidex 27. UV index 5 or moderate.
Monday night..Clear. Fog patches developing overnight. Low 9.

Stratford - Mitchell - Southern Perth County.
Tonight..Clear. Fog patches developing after midnight. Low 9.
Monday..Sunny. Fog patches dissipating in the morning. High 24.
 Humidex 27. UV index 5 or moderate.
Monday night..Clear. Fog patches developing overnight. Low 9.

Listowel - Milverton - Northern Perth County.
Tonight..Clear. Fog patches developing after midnight. Low 9.
Monday..Sunny. Fog patches dissipating in the morning. High 24.
 Humidex 27. UV index 5 or moderate.
Monday night..Clear. Fog patches developing overnight. Low 9.

Kitchener - Cambridge - Region of Waterloo.
Tonight..Clear. Fog patches developing after midnight. Low 9.
Monday..Sunny. Fog patches dissipating in the morning. High 24.
 Humidex 27. UV index 6 or high.
Monday night..Clear. Fog patches developing overnight. Low 9.

Guelph - Erin - Southern Wellington County.
Tonight..Clear. Fog patches developing after midnight. Low 9.
Monday..Sunny. Fog patches dissipating in the morning. High 24.
 Humidex 27. UV index 6 or high.
Monday night..Clear. Fog patches developing overnight. Low 9.

Mount Forest - Arthur - Northern Wellington County.
Tonight..Clear. Fog patches developing after midnight. Low 9.
Monday..Sunny. Fog patches dissipating in the morning. High 24.
 Humidex 27. UV index 6 or high.
Monday night..Clear. Fog patches developing overnight. Low 9.

Orangeville - Grand Valley - Southern Dufferin County.
Tonight..Clear. Fog patches developing after midnight. Wind northwest
 20 km/h becoming light early this evening. Low 7.
Monday..Sunny. Fog patches dissipating in the morning. High 23. UV
 index 6 or high.
Monday night..Clear. Fog patches developing overnight. Low 8.

Shelburne - Mansfield - Northern Dufferin County.
Tonight..Clear. Fog patches developing after midnight. Wind northwest
 20 km/h becoming light early this evening. Low 7.
Monday..Sunny. Fog patches dissipating in the morning. High 23. UV
 index 6 or high.
Monday night..Clear. Fog patches developing overnight. Low 8.

Innisfil - New Tecumseth - Angus.
Tonight..Clear. Fog patches developing after midnight. Wind northwest
 20 km/h becoming light early this evening. Low 7.
Monday..Sunny. Fog patches dissipating in the morning. High 24.
 Humidex 25. UV index 5 or moderate.
Monday night..Clear. Fog patches developing overnight. Low 8.

Saugeen Shores - Kincardine - Southern Bruce County.
Tonight..Clear. Fog patches developing after midnight. Low 8.
Monday..Sunny. Fog patches dissipating in the morning. High 23. UV
 index 5 or moderate.
Monday night..Clear. Fog patches developing overnight. Low 8.

Bruce Peninsula - Sauble Beach - Tobermory.
Tonight..Clear. Fog patches developing after midnight. Wind northwest
 20 km/h gusting to 40 becoming light early this evening. Low 9.
Monday..Sunny. Fog patches dissipating in the morning. High 21. UV
 index 5 or moderate.
Monday night..Clear. Fog patches developing overnight. Low 10.

Hanover - Dundalk - Southern Grey County.
Tonight..Clear. Fog patches developing after midnight. Low 8.
Monday..Sunny. Fog patches dissipating in the morning. High 23. UV
 index 5 or moderate.
Monday night..Clear. Fog patches developing overnight. Low 8.

Owen Sound - Blue Mountains - Northern Grey County.
Tonight..Clear. Fog patches developing after midnight. Low 8.
Monday..Sunny. Fog patches dissipating in the morning. High 23. UV
 index 5 or moderate.
Monday night..Clear. Fog patches developing overnight. Low 8.

Barrie - Collingwood - Hillsdale.
Tonight..Clear. Fog patches developing after midnight. Wind northwest
 20 km/h becoming light early this evening. Low 7.
Monday..Sunny. Fog patches dissipating in the morning. High 24.
 Humidex 25. UV index 5 or moderate.
Monday night..Clear. Fog patches developing overnight. Low 8.

Midland - Coldwater - Orr Lake.
Tonight..Clear. Fog patches developing after midnight. Wind northwest
 20 km/h becoming light early this evening. Low 7.
Monday..Sunny. Fog patches dissipating in the morning. High 24.
 Humidex 25. UV index 5 or moderate.
Monday night..Clear. Fog patches developing overnight. Low 8.

Orillia - Lagoon City - Washago.
Tonight..Clear. Fog patches developing after midnight. Wind northwest
 20 km/h becoming light early this evening. Low 7.
Monday..Sunny. Fog patches dissipating in the morning. High 24.
 Humidex 25. UV index 5 or moderate.
Monday night..Clear. Fog patches developing overnight. Low 8.

Cobourg - Colborne - Western Northumberland County.
Tonight..Clear. Low 10.
Monday..Sunny. High 25. Humidex 27. UV index 5 or moderate.
Monday night..Clear. Low 11.

Belleville - Quinte West - Eastern Northumberland County.
Tonight..Clear. Low 10.
Monday..Sunny. High 25. Humidex 27. UV index 5 or moderate.
Monday night..Clear. Low 11.

Picton - Sandbanks Park.
Tonight..Clear. Low 10.
Monday..Sunny. High 25. Humidex 27. UV index 5 or moderate.
Monday night..Clear. Low 11.

Napanee - Consecon.
Tonight..Clear. Low 10.
Monday..Sunny. High 25. Humidex 27. UV index 5 or moderate.
Monday night..Clear. Low 11.

Kingston - Odessa - Frontenac Islands.
Tonight..Clear. Low 10.
Monday..Sunny. High 25. Humidex 27. UV index 5 or moderate.
Monday night..Clear. Low 11.

Lindsay - Southern Kawartha Lakes.
Tonight..Clear. Fog patches developing after midnight. Low 6.
Monday..Sunny. Fog patches dissipating in the morning. High 25.
 Humidex 26. UV index 5 or moderate.
Monday night..Clear. Low 8.

Fenelon Falls - Balsam Lake Park - Northern Kawartha Lakes.
Tonight..Clear. Fog patches developing after midnight. Low 6.
Monday..Sunny. Fog patches dissipating in the morning. High 25.
 Humidex 26. UV index 5 or moderate.
Monday night..Clear. Low 8.

Peterborough City - Lakefield - Southern Peterborough County.
Tonight..Clear. Fog patches developing after midnight. Low 6.
Monday..Sunny. Fog patches dissipating in the morning. High 25.
 Humidex 26. UV index 5 or moderate.
Monday night..Clear. Low 8.

Apsley - Woodview - Northern Peterborough County.
Tonight..Clear. Low 6.
Monday..Sunny. High 25. Humidex 26. UV index 5 or moderate.
Monday night..Clear. Low 8.

Stirling - Tweed - Madoc.
Tonight..Clear. Low 8.
Monday..Sunny. High 25. Humidex 27. UV index 5 or moderate.
Monday night..Clear. Low 10.

Tamworth - Sydenham - South Frontenac.
Tonight..Clear. Low 8.
Monday..Sunny. High 25. Humidex 27. UV index 5 or moderate.
Monday night..Clear. Low 10.

Kaladar - Bannockburn - Bon Echo Park.
Tonight..Clear. Low 6.
Monday..Sunny. High 25. Humidex 26. UV index 5 or moderate.
Monday night..Clear. Low 9.

Bancroft - Hastings Highlands - Denbigh.
Tonight..Clear. Fog patches developing overnight. Low plus 5.
Monday..Sunny. Fog patches dissipating in the morning. High 23. UV
 index 5 or moderate.
Monday night..Clear. Low 7.

Gananoque - Mallorytown.
Tonight..Clear. Low 10.
Monday..Sunny. High 25. Humidex 27. UV index 5 or moderate.
Monday night..Clear. Low 11.

Brockville - Prescott.
Tonight..Clear. Fog patches developing overnight. Low 8.
Monday..Sunny. Fog patches dissipating in the morning. High 26.
 Humidex 27. UV index 5 or moderate.
Monday night..Clear. Low 10.

Westport - Charleston Lake.
Tonight..Clear. Low 8.
Monday..Sunny. High 25. Humidex 27. UV index 5 or moderate.
Monday night..Clear. Low 10.

Merrickville-Wolford - Kemptville.
Tonight..Clear. Fog patches developing overnight. Low 8.
Monday..Sunny. Fog patches dissipating in the morning. High 26.
 Humidex 27. UV index 5 or moderate.
Monday night..Clear. Low 10.

Ottawa North - Kanata - Orl�ans.
Tonight..Clear. Fog patches developing overnight. Low 8.
Monday..Sunny. Fog patches dissipating in the morning. High 26.
 Humidex 27. UV index 5 or moderate.
Monday night..Clear. Low 9.

Ottawa South - Richmond - Metcalfe.
Tonight..Clear. Fog patches developing overnight. Low 8.
Monday..Sunny. Fog patches dissipating in the morning. High 26.
 Humidex 27. UV index 5 or moderate.
Monday night..Clear. Low 9.

Gatineau.
Tonight..Clear. Fog patches developing overnight. Low 8.
Monday..Sunny. Fog patches dissipating in the morning. High 26.
 Humidex 27. UV index 5 or moderate.
Monday night..Clear. Low 9.

Prescott and Russell.
Tonight..Clear. Fog patches developing overnight. Low 8.
Monday..Sunny. Fog patches dissipating in the morning. High 26.
 Humidex 27. UV index 5 or moderate.
Monday night..Clear. Low 9.

Morrisburg - Long Sault.
Tonight..Clear. Fog patches developing overnight. Low 8.
Monday..Sunny. Fog patches dissipating in the morning. High 26.
 Humidex 27. UV index 5 or moderate.
Monday night..Clear. Low 10.

Cornwall - Lancaster.
Tonight..Clear. Fog patches developing overnight. Low 8.
Monday..Sunny. Fog patches dissipating in the morning. High 26.
 Humidex 27. UV index 5 or moderate.
Monday night..Clear. Low 10.

Winchester - Newington.
Tonight..Clear. Fog patches developing overnight. Low 8.
Monday..Sunny. Fog patches dissipating in the morning. High 26.
 Humidex 27. UV index 5 or moderate.
Monday night..Clear. Low 10.

Maxville - Alexandria.
Tonight..Clear. Fog patches developing overnight. Low 8.
Monday..Sunny. Fog patches dissipating in the morning. High 26.
 Humidex 27. UV index 5 or moderate.
Monday night..Clear. Low 10.

Plevna - Sharbot Lake - Western Lanark County.
Tonight..Clear. Low 6.
Monday..Sunny. High 25. Humidex 26. UV index 5 or moderate.
Monday night..Clear. Low 9.

Smiths Falls - Perth - Eastern Lanark County.
Tonight..Clear. Low 6.
Monday..Sunny. High 25. Humidex 26. UV index 5 or moderate.
Monday night..Clear. Low 9.

Port Carling - Port Severn.
Tonight..Clear. Fog patches developing after midnight. Low 8.
Monday..Sunny. Fog patches dissipating in the morning. High 21. UV
 index 5 or moderate.
Monday night..Clear. Fog patches developing overnight. Low 8.

Bracebridge - Gravenhurst.
Tonight..Clear. Fog patches developing overnight. Low plus 5.
Monday..Sunny. Fog patches dissipating in the morning. High 23. UV
 index 5 or moderate.
Monday night..Clear. Fog patches developing overnight. Low 7.

Town of Parry Sound - Rosseau - Killbear Park.
Tonight..Clear. Fog patches developing after midnight. Low 8.
Monday..Sunny. Fog patches dissipating in the morning. High 21. UV
 index 5 or moderate.
Monday night..Clear. Fog patches developing overnight. Low 8.

Huntsville - Baysville.
Tonight..Clear. Fog patches developing overnight. Low plus 5.
Monday..Sunny. Fog patches dissipating in the morning. High 23. UV
 index 5 or moderate.
Monday night..Clear. Fog patches developing overnight. Low 6.

Haliburton - Minden - Southern Haliburton County.
Tonight..Clear. Fog patches developing overnight. Low plus 5.
Monday..Sunny. Fog patches dissipating in the morning. High 23. UV
 index 5 or moderate.
Monday night..Clear. Low 6.

Oxtongue Lake - Fort Irwin - Northern Haliburton County.
Tonight..Clear. Fog patches developing overnight. Low plus 5.
Monday..Sunny. Fog patches dissipating in the morning. High 23. UV
 index 5 or moderate.
Monday night..Clear. Low 6.

Barry's Bay - Killaloe.
Tonight..Clear. Fog patches developing overnight. Low plus 5.
Monday..Sunny. Fog patches dissipating in the morning. High 23. UV
 index 5 or moderate.
Monday night..Clear. Low 7.

Renfrew - Arnprior - Calabogie.
Tonight..Clear. Fog patches developing overnight. Low 7.
Monday..Sunny. Fog patches dissipating in the morning. High 25.
 Humidex 26. UV index 5 or moderate.
Monday night..Clear. Low 8.

Petawawa - Pembroke - Cobden.
Tonight..Clear. Fog patches developing overnight. Low 7.
Monday..Sunny. Fog patches dissipating in the morning. High 25.
 Humidex 26. UV index 5 or moderate.
Monday night..Clear. Low 7.

Western Algonquin Park - Lake of Two Rivers.
Tonight..Clear. Fog patches developing overnight. Low plus 5.
Monday..Sunny. Fog patches dissipating in the morning. High 23. UV
 index 5 or moderate.
Monday night..Clear. Low 6.

Deep River - Whitney - Eastern Algonquin Park.
Tonight..Clear. Fog patches developing overnight. Low plus 5.
Monday..Sunny. Fog patches dissipating in the morning. High 23. UV
 index 5 or moderate.
Monday night..Clear. Low 6.

Bayfield Inlet - Dunchurch.
Tonight..Clear. Fog patches developing after midnight. Low 8.
Monday..Sunny. Fog patches dissipating in the morning. High 21. UV
 index 5 or moderate.
Monday night..Clear. Fog patches developing overnight. Low 8.

South River - Burk's Falls.
Tonight..Clear. Fog patches developing overnight. Low plus 5.
Monday..Sunny. Fog patches dissipating in the morning. High 23. UV
 index 5 or moderate.
Monday night..Clear. Fog patches developing overnight. Low 6.

End
$$$$^^

--- up 7 hours, 18 minutes
 * Origin: Northern Realms (618:400/23)