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Lake St. Clair

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EDT 03 June 2026

Today Tonight and Thursday.

Wind light becoming south 10 knots early this evening then veering to southwest 10 early Thursday morning. Wind increasing to southwest 15 Thursday afternoon then diminishing to south 10 Thursday evening.

Waves

Issued 10:30 AM EDT 03 June 2026
Today Tonight and Thursday. Waves 0.5 metres or less building to 0.5 to 1 Thursday evening.

Extended Forecast

Issued 03:00 AM EDT 03 June 2026
Friday Wind light becoming southwest 15 knots in the morning.
Saturday Wind southwest 15 knots.
Sunday Wind southwest 15 knots diminishing to light.

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Map of Great Lakes - Lake Erie and Lake Ontario marine weather areas CFB Trenton Port Colborne - 45142 Hamilton Munro Int'l Airport Oshawa Executive Airport Port Stanley - 45132 Lake Nipissing - 45152 Point Petre Georgian Bay - 45137 Toronto City Centre Airport Lake Simcoe - 45151 South Georgian Bay - 45143 Prince Edward Point - 45135 Peterborough Municipal Airport South Lake Huron - 45149 Collingwood Lake St Clair - 45147 Grimsby - 45139 Goderich Lagoon City Kingston Airport Muskoka Airport Parry Sound Harbour Grenadier Island Lake Simcoe Regional Airport Wiarton Airport Brockville Western Islands Cove Island Great Duck Island North Channel - 45154 Sarnia Chris Hadfield Airport Gore Bay-Manitoulin Airport Tobermory Harrow AAFC Long Point North Bay Airport Port Weller St. Catharines / Niagara District Airport Greater Sudbury Airport Southeast Shoal Vineland Station Port Colborne Erieau Cobourg Sault Ste. Marie Airport Windsor Airport Welland-Pelham Killarney Ajax - 45159 Point Pelee Burlington Lift Bridge
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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 10:30 AM EDT 3 June 2026 Today Tonight and Thursday At 10:30 a.m. EDT today high 1028 mb located over Lake Erie.
By 10:30 a.m. EDT Thursday high 1029 mb located over Kentucky.

At 10:30 a.m. EDT today trough located on a line east-west over
central Manitoba.
By 10:30 a.m. EDT Thursday trough located on a line east-west over
Lake Nipigon.

At 10:30 a.m. EDT today low 1015 mb located over southern
Saskatchewan.
By 10:30 a.m. EDT Thursday low 1009 mb located over Lake of
the Woods.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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