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Cornwall to Montréal

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 27 April 2025

Today Tonight and Monday.

Wind northwest 15 to 20 knots diminishing to light near midnight then becoming southwest 10 to 15 near noon Monday. Wind becoming light Monday evening.

Rain ending near noon. Visibility as low as 1 mile in rain.

Extended Forecast

Issued 06:00 AM EDT 27 April 2025
Tuesday Wind light increasing to southwest 15 to 25 knots in the afternoon.
Wednesday Wind westerly 20 to 30 knots diminishing to northwest 15 to 20.
Thursday Wind light.

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Map of Great Lakes - Lake Erie and Lake Ontario marine weather areas Harrow AAFC Burlington Lift Bridge Oshawa Executive Airport Point Pelee Peterborough Municipal Airport Point Petre Hamilton Munro Int'l Airport Erieau Cobourg Toronto City Centre Airport Port Colborne CFB Trenton South Lake Huron - 45149 Windsor Airport Great Duck Island Gore Bay-Manitoulin Airport North Bay Airport Greater Sudbury Airport Killarney Sault Ste. Marie Airport Ajax - 45159 North Channel - 45154 Lake Nipissing - 45152 Lake Simcoe - 45151 Welland-Pelham Lake St Clair - 45147 South Georgian Bay - 45143 Port Colborne - 45142 Grimsby - 45139 Georgian Bay - 45137 Prince Edward Point - 45135 Port Stanley - 45132 Vineland Station Brockville Grenadier Island Kingston Airport Collingwood Lagoon City Muskoka Airport Parry Sound Harbour Lake Simcoe Regional Airport Wiarton Airport Cove Island Goderich Sarnia Chris Hadfield Airport Western Islands Tobermory Long Point Port Weller St. Catharines / Niagara District Airport Southeast Shoal
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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 27 April 2025 Today Tonight and Monday At 3:00 a.m. EDT today low 1003 mb located over Maine.
By 8:00 p.m. EDT Monday low 1012 mb located off Nova Scotia.

At 8:00 p.m. EDT tonight high 1027 mb located over Lake Michigan.
By 8:00 p.m. EDT Monday high 1028 mb located near Cape Hatteras.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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