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Cornwall to Montréal

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EST 06 November 2026

Today Tonight and Saturday.

Wind light becoming northeast 15 knots this evening. Wind northeast 15 Saturday.

Showers Saturday.

Extended Forecast

Issued 06:00 AM EST 06 November 2026
Sunday Wind southwest 10 to 15 knots.
Monday Wind light increasing to west 15 to 25 knots.
Tuesday Wind southwest 10 to 15 knots.

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Map of Great Lakes - Lake Erie and Lake Ontario marine weather areas St. Catharines / Niagara District Airport Burlington Lift Bridge Point Pelee Cobourg Hamilton Munro Int'l Airport Oshawa Executive Airport Point Petre Toronto City Centre Airport CFB Trenton Peterborough Municipal Airport Ajax - 45159 Erieau Lagoon City Collingwood Kingston Airport Grenadier Island Brockville Gore Bay-Manitoulin Airport North Bay Airport Greater Sudbury Airport Killarney Sault Ste. Marie Airport Port Colborne North Channel - 45154 Lake Nipissing - 45152 Lake Simcoe - 45151 South Lake Huron - 45149 Lake St Clair - 45147 South Georgian Bay - 45143 Port Colborne - 45142 Grimsby - 45139 Georgian Bay - 45137 Prince Edward Point - 45135 Port Stanley - 45132 Windsor Airport Muskoka Airport Parry Sound Harbour Lake Simcoe Regional Airport Wiarton Airport Western Islands Goderich Sarnia Chris Hadfield Airport Tobermory Long Point Harrow AAFC Port Weller Southeast Shoal Vineland Station Welland-Pelham
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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 EST 6 November 2026 Today Tonight and Saturday At 3:00 a.m. EST today cold front located from the Gulf of
St. Lawrence to Lake Saint-Jean.
By 7:00 p.m. EST tonight departing cold front located over the
Strait of Belle Isle.

At 3:00 a.m. EST today high 1026 mb located over northwestern
Ontario.
By 7:00 p.m. EST Saturday high 1026 mb located over Labrador.

At 3:00 a.m. EST today low 1007 mb located over Lake Huron.
By 7:00 p.m. EST Saturday low 1005 mb located over New England.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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