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Kingston to Cornwall

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EDT 19 August 2026

Today Tonight and Thursday.

Wind southwest 10 knots becoming light this afternoon. Wind light tonight and Thursday.

Scattered showers ending this evening with a risk of thunderstorms. Scattered showers Thursday late in the day. Fog patches forming near midnight and dissipating near noon Thursday.

Extended Forecast

Issued 03:00 AM EDT 19 August 2026
Friday Wind light.
Saturday Wind light becoming southwest 15 knots late in the day.
Sunday Wind southwest 15 knots.

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Map of Great Lakes - Lake Huron marine weather areas Erieau CFB Trenton Muskoka Airport Parry Sound Harbour Toronto City Centre Airport Lake Simcoe Regional Airport Wiarton Airport Point Petre Lagoon City Western Islands Cobourg Port Colborne Windsor Airport Point Pelee Welland-Pelham Vineland Station Burlington Lift Bridge Southeast Shoal St. Catharines / Niagara District Airport Goderich Port Weller Long Point Harrow AAFC Hamilton Munro Int'l Airport Tobermory Sarnia Chris Hadfield Airport Oshawa Executive Airport Collingwood 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 Peterborough Municipal Airport Brockville Grenadier Island Kingston Airport
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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 10:30 AM EDT 19 August 2026 Today Tonight and Thursday At 10:30 a.m. EDT today trough from low located on a line
northeast-southwest over Saskatchewan.
By 10:30 a.m. EDT Thursday trough from low located on a line
northwest-southeast over the Ontario - Manitoba border.

At 10:30 a.m. EDT today cold front located on a line
northeast-southwest over Lake Simcoe.
By 10:30 a.m. EDT Thursday cold front located on a line
northeast-southwest over New Brunswick.

At 10:30 a.m. EDT today ridge located on a line north-south over
the Ontario - Manitoba border.
By 10:30 a.m. EDT Thursday high 1020 mb located over southern
Ontario.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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