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Lake St. Clair

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 15 August 2026

Today Tonight and Sunday.

Wind northeast 10 knots becoming light early this morning then becoming southeast 10 this afternoon. Wind veering to southwest 10 Sunday morning then to west 10 Sunday afternoon.

Scattered showers tonight with a risk of thunderstorms. Scattered showers Sunday afternoon and evening with a risk of thunderstorms.

Waves

Issued 03:00 AM EDT 15 August 2026
Today Tonight and Sunday. Waves less than 0.5 metres.

Extended Forecast

Issued 03:00 AM EDT 15 August 2026
Monday Wind northwest 15 knots diminishing to light in the morning.
Tuesday Wind light.
Wednesday Wind southwest 15 knots diminishing to light.

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Map of Great Lakes - Lake Huron marine weather areas Erieau CFB Trenton Muskoka Airport Parry Sound Harbour Toronto City Centre Airport Lake Simcoe Regional Airport Wiarton Airport Point Petre Lagoon City Western Islands Cobourg Port Colborne Windsor Airport Point Pelee Welland-Pelham Vineland Station Burlington Lift Bridge Southeast Shoal St. Catharines / Niagara District Airport Goderich Port Weller Long Point Harrow AAFC Hamilton Munro Int'l Airport Tobermory Sarnia Chris Hadfield Airport Oshawa Executive Airport Collingwood Port Stanley - 45132 Prince Edward Point - 45135 Georgian Bay - 45137 Grimsby - 45139 Port Colborne - 45142 South Georgian Bay - 45143 Lake St Clair - 45147 South Lake Huron - 45149 Lake Simcoe - 45151 Lake Nipissing - 45152 North Channel - 45154 Ajax - 45159 Sault Ste. Marie Airport Killarney Greater Sudbury Airport North Bay Airport Gore Bay-Manitoulin Airport Peterborough Municipal Airport Brockville Grenadier Island Kingston Airport
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land station Land Station
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 3:00 AM EDT 15 August 2026 Today Tonight and Sunday At 3:00 a.m. EDT today ridge located on a line northwest-southeast
over Ontario.
By 3:00 a.m. EDT Sunday ridge located on a line northwest-southeast
over southern Quebec.

At 3:00 a.m. EDT today trough located on a line north-south over
North Dakota.
By 3:00 a.m. EDT Sunday trough located on a line north-south over
Lake Nipigon.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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