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Cornwall to Montréal

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 10 July 2026

Today Tonight and Saturday.

Wind light today tonight and Saturday.

Scattered showers this afternoon. Fog banks dissipating early this morning.

Extended Forecast

Issued 06:00 AM EDT 10 July 2026
Sunday Wind light.
Monday Wind southwest 15 knots increasing to southwest 15 to 25 late in the day.
Tuesday Wind southwest 15 knots increasing to southwest 15 to 25.

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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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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 10 July 2026 Today Tonight and Saturday At 3:00 a.m. EDT today trough located from Anticosti Island to
New England.
By 8:00 p.m. EDT tonight departing trough located from the Strait
of Belle Isle to Nova Scotia.

At 3:00 a.m. EDT today ridge located on a line north-south over
Lake Superior.
By 8:00 p.m. EDT Saturday ridge located on a line
northeast-southwest over western Quebec.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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