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Lake St. Clair

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EST 22 January 2026

Today Tonight and Friday.

Wind west 15 knots backing to southwest 20 this morning then diminishing to southwest 15 this afternoon. Wind veering to northwest 20 overnight then diminishing to northwest 10 Friday evening.

Scattered flurries ending Friday morning.

Waves

Issued 03:00 AM EST 22 January 2026
Today Tonight and Friday. Mainly ice covered.

Extended Forecast

Issued 03:00 AM EST 22 January 2026
Saturday Wind light.
Sunday Wind light becoming northeast 15 knots.
Monday Wind northwest 15 knots backing to southwest 20 late in the day.

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Map of Great Lakes - Lake Erie and Lake Ontario marine weather areas Harrow AAFC Burlington Lift Bridge Oshawa Executive Airport Point Pelee Peterborough Municipal Airport Point Petre Hamilton Munro Int'l Airport Erieau Cobourg Toronto City Centre Airport Port Colborne CFB Trenton South Lake Huron - 45149 Windsor Airport Great Duck Island Gore Bay-Manitoulin Airport North Bay Airport Greater Sudbury Airport Killarney Sault Ste. Marie Airport Ajax - 45159 North Channel - 45154 Lake Nipissing - 45152 Lake Simcoe - 45151 Welland-Pelham Lake St Clair - 45147 South Georgian Bay - 45143 Port Colborne - 45142 Grimsby - 45139 Georgian Bay - 45137 Prince Edward Point - 45135 Port Stanley - 45132 Vineland Station Brockville Grenadier Island Kingston Airport Collingwood Lagoon City Muskoka Airport Parry Sound Harbour Lake Simcoe Regional Airport Wiarton Airport Cove Island Goderich Sarnia Chris Hadfield Airport Western Islands Tobermory Long Point Port Weller St. Catharines / Niagara District Airport Southeast Shoal
Legend:
buoy Buoy
land station Land Station
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 3:00 AM EST 22 January 2026 Today Tonight and Friday At 3:00 a.m. EST today low 1001 mb located over northeastern
Ontario.
By 3:00 a.m. EST Friday departing low 1004 mb located over eastern
Quebec.

At 3:00 a.m. EST today trough located on a line northwest-southeast
over Lake Superior.
By 3:00 a.m. EST Friday trough located on a line east-west over
Lake Nipissing.

Great Lakes - Lake Erie and Lake Ontario Area

Another Region

Marine Weather for Canada

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