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Lake St. Clair

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EST 17 February 2026

Today Tonight and Wednesday.

Wind light becoming southeast 10 knots early this evening then increasing to south 15 early Wednesday morning. Wind veering to southwest 15 near noon Wednesday then diminishing to west 10 Wednesday evening.

Showers overnight and Wednesday morning. Risk of thunderstorms late Wednesday morning. Fog patches dissipating this afternoon.

Waves

Issued 10:30 AM EST 17 February 2026
Today Tonight and Wednesday. Mainly ice covered.

Extended Forecast

Issued 03:00 AM EST 17 February 2026
Thursday Wind light increasing to east 15 knots in the morning and to east 20 late in the day.
Friday Wind east 20 knots becoming southwest 20.
Saturday Wind southwest 15 knots veering to northwest 15 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 16 May 2025 Forecasts have ended for the season.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EST 17 February 2026 Today Tonight and Wednesday At 10:30 a.m. EST today departing trough located on a line
northeast-southwest over eastern Ontario.

At 10:30 a.m. EST today ridge located on a line northwest-southeast
over northwestern Ontario.
By 10:30 a.m. EST Wednesday ridge located on a line
northwest-southeast over northeastern Ontario.

By 10:30 a.m. EST Wednesday approaching low 986 mb located over
southern Minnesota.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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