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Cornwall to Montréal

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 04 April 2025

Today Tonight and Saturday.

Wind west 15 knots diminishing to light early this evening then increasing to northeast 15 Saturday morning. Wind increasing to southeast 15 to 25 near noon Saturday then diminishing to southwest 10 to 15 Saturday evening.

Periods of rain Saturday afternoon and evening.

High today plus 8. Low tonight zero. High Saturday plus 6.

Extended Forecast

Issued 06:00 AM EDT 04 April 2025
Sunday Wind westerly 15 knots.
Monday Wind light.
Tuesday Wind southeast 20 knots veering to southwest 20.

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Map of Great Lakes - Lake Huron marine weather areas 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 Great Duck Island Brockville Grenadier Island Kingston Airport Collingwood Lagoon City Muskoka Airport Parry Sound Harbour Lake Simcoe Regional Airport Wiarton Airport Western Islands Cove Island Goderich Sarnia Chris Hadfield Airport Tobermory Harrow AAFC Long Point Port Weller St. Catharines / Niagara District Airport Southeast Shoal Vineland Station Welland-Pelham Windsor Airport Port Colborne Erieau Point Pelee Burlington Lift Bridge Cobourg Hamilton Munro Int'l Airport Oshawa Executive Airport Point Petre Toronto City Centre Airport CFB Trenton Peterborough Municipal Airport
Legend:
buoy Buoy
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 4 April 2025 Today Tonight and Saturday At 3:00 a.m. EDT today trough located from New Brunswick to
James Bay.
By 8:00 p.m. EDT tonight departing trough located from Cape Breton
Island to Sept-Îles.

At 3:00 a.m. EDT today high 1022 mb located over the Midwestern
states.
By 8:00 p.m. EDT Saturday high 1031 mb located over the Gulf of
St. Lawrence.

At 8:00 p.m. EDT Saturday approaching trough located on a line
north-south over western Quebec.

Great Lakes - Lake Huron Area

Another Region

Marine Weather for Canada

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