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Kingston to Cornwall

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 20 July 2026

Tonight and Tuesday.

Wind southwest 10 knots becoming light this evening then becoming south 10 early Tuesday morning. Wind increasing to southwest 15 Tuesday afternoon.

Scattered showers Tuesday late in the day with a risk of thunderstorms.

Extended Forecast

Issued 06:30 PM EDT 20 July 2026
Wednesday Wind light becoming southwest 15 knots in the morning then diminishing to light late in the day.
Thursday Wind light.
Friday Wind light.

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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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Ice Conditions

There is no ice forecast issued for this area.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EDT 20 July 2026 Tonight and Tuesday At 6:30 p.m. EDT tonight low 995 mb located over northern Ontario.
By 6:30 p.m. EDT Tuesday low 994 mb located over northern Quebec.

At 6:30 p.m. EDT tonight trough from low located over western
Lake Superior.
By 6:30 p.m. EDT Tuesday trough from low located over North Channel.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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