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Cornwall to Montréal

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 25 April 2025

Today Tonight and Saturday.

Wind light increasing to northeast 10 to 20 knots near noon then becoming southwest 15 to 25 Saturday evening.

Rain tonight and Saturday. Visibility 1 mile or less in rain.

Extended Forecast

Issued 06:00 AM EDT 25 April 2025
Sunday Wind northwest 15 to 25 knots becoming northwest 15 late in the day.
Monday Wind light becoming southwest 10 to 15 knots late in the day.
Tuesday Wind light increasing to southwest 15 to 25 knots late in the day.

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Map of Great Lakes - Lake Huron marine weather areas Cove Island Goderich Oshawa Executive Airport CFB Trenton Western Islands Wiarton Airport Point Petre Lake Simcoe Regional Airport Parry Sound Harbour Toronto City Centre Airport Muskoka Airport Lagoon City Brockville Hamilton Munro Int'l Airport Sarnia Chris Hadfield Airport Tobermory Cobourg Harrow AAFC Long Point Port Weller Burlington Lift Bridge St. Catharines / Niagara District Airport Southeast Shoal Point Pelee Vineland Station Welland-Pelham Erieau Windsor Airport Port Colborne Killarney South Georgian Bay - 45143 Grimsby - 45139 Georgian Bay - 45137 Prince Edward Point - 45135 Port Stanley - 45132 Lake St Clair - 45147 South Lake Huron - 45149 Sault Ste. Marie Airport Lake Simcoe - 45151 Collingwood Greater Sudbury Airport North Bay Airport Kingston Airport Peterborough Municipal Airport Grenadier Island Port Colborne - 45142 Great Duck Island Ajax - 45159 Gore Bay-Manitoulin Airport North Channel - 45154 Lake Nipissing - 45152
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Ice Conditions

There is no ice forecast issued for this area.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 25 April 2025 Today Tonight and Saturday At 3:00 a.m. EDT today ridge located over the Gulf of St. Lawrence.
By 8:00 p.m. EDT Saturday ridge located over eastern Newfoundland.

At 3:00 a.m. EDT today building low located southwest of the
Great Lakes.
By 8:00 p.m. EDT Saturday low 1003 mb located over Montréal.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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