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Lake St. Clair

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 16 July 2026

Tonight and Friday.

Wind northeast 10 knots becoming light late overnight then becoming southeast 10 Friday afternoon.

Scattered showers Friday evening with a risk of thunderstorms. Smoke. Visibility as low as 1 mile in smoke.

Waves

Issued 06:30 PM EDT 16 July 2026
Tonight and Friday. Waves less than 0.5 metres.

Extended Forecast

Issued 06:30 PM EDT 16 July 2026
Saturday Wind southwest 15 knots becoming north 15 in the afternoon.
Sunday Wind north 15 knots diminishing to light.
Monday Wind light becoming southwest 15 knots late in the day.

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Map of Great Lakes - Lake Huron marine weather areas Wiarton Airport Western Islands Cove Island Goderich Lake Simcoe Regional Airport Vineland Station Parry Sound Harbour Sarnia Chris Hadfield Airport Tobermory Muskoka Airport Harrow AAFC Long Point Port Weller St. Catharines / Niagara District Airport Lagoon City Southeast Shoal Burlington Lift Bridge Welland-Pelham Windsor Airport Port Colborne Erieau Peterborough Municipal Airport CFB Trenton Toronto City Centre Airport Point Petre Oshawa Executive Airport Hamilton Munro Int'l Airport Point Pelee Cobourg Port Colborne - 45142 North Channel - 45154 Ajax - 45159 Lake Nipissing - 45152 Sault Ste. Marie Airport Killarney Lake Simcoe - 45151 Greater Sudbury Airport South Lake Huron - 45149 Lake St Clair - 45147 North Bay Airport South Georgian Bay - 45143 Gore Bay-Manitoulin Airport Grimsby - 45139 Georgian Bay - 45137 Great Duck Island Collingwood Kingston Airport Grenadier Island Brockville Prince Edward Point - 45135 Port Stanley - 45132
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Ice Conditions

*Ice Forecast and Warnings also apply to U.S. waters

Ice Forecasts

Issued 12:00 PM EDT 17 May 2026 Forecasts have ended for the season.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EDT 16 July 2026 Tonight and Friday At 6:30 p.m. EDT tonight ridge located on a line northwest-southeast
over northern Ontario.
By 6:30 p.m. EDT Friday ridge located on a line north-south over
eastern Lake Ontario.

At 6:30 p.m. EDT tonight low 1007 mb located over South Dakota.
By 6:30 p.m. EDT Friday low 1007 mb located over Lake Superior.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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