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Lake St. Clair

Forecast

Marine Forecast

Issued 03:00 AM EDT 14 June 2026

Today Tonight and Monday.

Wind southwest 15 knots veering to west 15 this morning then to northwest 15 near noon. Wind diminishing to west 10 Monday morning then increasing to west 15 Monday evening.

Showers ending near midnight. Risk of thunderstorms today.

Waves

Issued 03:00 AM EDT 14 June 2026
Today Tonight and Monday. Waves 0.5 metres.

Extended Forecast

Issued 03:00 AM EDT 14 June 2026
Tuesday Wind southwest 15 knots.
Wednesday Wind southwest 15 knots.
Thursday Wind southwest 30 knots diminishing to west 20 late in the day.

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Weather Conditions

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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 3:00 AM EDT 14 June 2026 Today Tonight and Monday At 3:00 a.m. EDT today trough located on a line northeast-southwest
over northeastern Ontario.
By 3:00 a.m. EDT Monday trough located on a line northeast-southwest
over eastern Ontario.

At 3:00 a.m. EDT today low 996 mb located over eastern Hudson Bay.
By 3:00 a.m. EDT Monday low 998 mb located over central Hudson Bay.

At 3:00 a.m. EDT today departing ridge located on a line
northeast-southwest over Pennsylvania.

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