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Cornwall to Montréal

Warnings

Forecast

Marine Forecast

Issued 03:00 PM EDT 14 March 2026

Tonight and Sunday.

Wind north 15 knots increasing to westerly 20 to 30 late this afternoon then diminishing to west 15 this evening. Wind diminishing to light late overnight then becoming northeast 10 to 15 Sunday afternoon.

Periods of snow Sunday evening.

Low tonight minus 8. High Sunday minus 1.

Extended Forecast

Issued 06:00 PM EDT 14 March 2026
Monday Wind southeast 15 to 25 knots.
Tuesday Wind southwest 25 to 35 knots diminishing to west 15 to 25 late in the day.
Wednesday Wind west 15 to 25 knots diminishing to westerly 10 to 15.

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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 PM EDT 14 March 2026 Tonight and Sunday At 3:00 p.m. EDT today low 1002 mb located near Maine.
By 3:00 a.m. EDT Sunday departing low 998 mb located near
Newfoundland.

At 3:00 p.m. EDT today ridge located on a line north-south over
the Great Lakes.
By 8:00 p.m. EDT Sunday ridge located on a line northwest-southeast
over Pointe-des-Monts.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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