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Cornwall to Montréal

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 16 October 2026

Today Tonight and Saturday.

Wind east 10 to 15 knots increasing to east 15 to 20 early this morning then becoming northwest 15 to 25 early this evening. Wind becoming west 15 Saturday evening.

Rain ending this evening.

Extended Forecast

Issued 06:00 AM EDT 16 October 2026
Sunday Wind light.
Monday Wind southwest 15 knots.
Tuesday Wind southwest 10 to 15 knots becoming northerly 10 to 15.

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Map of Great Lakes - Lake Huron marine weather areas Erieau CFB Trenton Muskoka Airport Parry Sound Harbour Toronto City Centre Airport Lake Simcoe Regional Airport Wiarton Airport Point Petre Lagoon City Western Islands Cobourg Port Colborne Windsor Airport Point Pelee Welland-Pelham Vineland Station Burlington Lift Bridge Southeast Shoal St. Catharines / Niagara District Airport Goderich Port Weller Long Point Harrow AAFC Hamilton Munro Int'l Airport Tobermory Sarnia Chris Hadfield Airport Oshawa Executive Airport Collingwood Port Stanley - 45132 Prince Edward Point - 45135 Georgian Bay - 45137 Grimsby - 45139 Port Colborne - 45142 South Georgian Bay - 45143 Lake St Clair - 45147 South Lake Huron - 45149 Lake Simcoe - 45151 Lake Nipissing - 45152 North Channel - 45154 Ajax - 45159 Sault Ste. Marie Airport Killarney Greater Sudbury Airport North Bay Airport Gore Bay-Manitoulin Airport Peterborough Municipal Airport Brockville Grenadier Island Kingston Airport
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land station Land Station
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 16 October 2026 Today Tonight and Saturday At 3:00 a.m. EDT today high 1025 mb located over Pointe-des-Monts.
By 8:00 p.m. EDT tonight high 1023 mb located off Newfoundland.

At 3:00 a.m. EDT today low 1012 mb located over Lake Ontario.
By 8:00 p.m. EDT tonight low 996 mb located over Labrador Sea.

At 8:00 a.m. EDT Saturday ridge located on a line
northeast-southwest over the Great Lakes.
By 8:00 p.m. EDT Saturday ridge located on a line
northeast-southwest over Québec city.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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