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Kingston to Cornwall

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Marine Forecast

Issued 10:30 AM EDT 18 August 2026

Today Tonight and Wednesday.

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

Scattered showers Wednesday afternoon and evening with a risk of thunderstorms.

Extended Forecast

Issued 03:00 AM EDT 18 August 2026
Thursday Wind light.
Friday Wind light.
Saturday Wind light.

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

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Synopsis

Technical Marine Synopsis

Issued 10:30 AM EDT 18 August 2026 Today Tonight and Wednesday At 10:30 a.m. EDT today ridge located on a line northeast-southwest
over Lake Erie.
By 10:30 a.m. EDT Wednesday ridge located on a line
northeast-southwest over Pennsylvania.

At 10:30 a.m. EDT today cold front located on a line
northeast-southwest over eastern Lake Superior.
By 10:30 a.m. EDT Wednesday cold front located on a line
northeast-southwest over southern Ontario.

At 10:30 a.m. EDT today low 996 mb located south of Hudson Bay.
By 10:30 a.m. EDT Wednesday low 1002 mb located over James Bay.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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