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Lake Simcoe

Warnings

Forecast

Marine Forecast

Issued 05:00 PM EDT 21 July 2026

Tonight and Wednesday.

Strong wind warning in effect.

Wind southwest 10 knots increasing to west 15 early this evening and to west 20 late this evening. Wind veering to northwest 20 after midnight then backing to west 20 Wednesday morning. Wind veering to northwest 20 Wednesday afternoon then diminishing to west 15 Wednesday evening.

Showers ending this evening with a risk of thunderstorms. Scattered showers overnight and Wednesday.

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Map of Great Lakes - Lake Erie and Lake Ontario marine weather areas CFB Trenton Port Colborne - 45142 Hamilton Munro Int'l Airport Oshawa Executive Airport Port Stanley - 45132 Lake Nipissing - 45152 Point Petre Georgian Bay - 45137 Toronto City Centre Airport Lake Simcoe - 45151 South Georgian Bay - 45143 Prince Edward Point - 45135 Peterborough Municipal Airport South Lake Huron - 45149 Collingwood Lake St Clair - 45147 Grimsby - 45139 Goderich Lagoon City Kingston Airport Muskoka Airport Parry Sound Harbour Grenadier Island Lake Simcoe Regional Airport Wiarton Airport Brockville Western Islands Cove Island Great Duck Island North Channel - 45154 Sarnia Chris Hadfield Airport Gore Bay-Manitoulin Airport Tobermory Harrow AAFC Long Point North Bay Airport Port Weller St. Catharines / Niagara District Airport Greater Sudbury Airport Southeast Shoal Vineland Station Port Colborne Erieau Cobourg Sault Ste. Marie Airport Windsor Airport Welland-Pelham Killarney Ajax - 45159 Point Pelee Burlington Lift Bridge
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Ice Conditions

There is no ice forecast issued for this area.

Warnings

Warnings (In effect)

Strong wind warning in effect

Lake Simcoe

Issued 00:06 AM EDT 22 July 2026

'Strong' winds of 20 to 33 knots are occurring or expected to occur in this marine area. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio.

Synopsis

There is no Synopsis issued for this area.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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