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Kingston to Cornwall

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 18 July 2026

Today Tonight and Sunday.

Wind south 10 knots increasing to southwest 15 this morning then veering to northwest 15 this evening. Wind diminishing to northwest 10 Sunday morning then becoming light Sunday evening.

Scattered showers today with a risk of thunderstorms.

Extended Forecast

Issued 03:00 AM EDT 18 July 2026
Monday Wind light.
Tuesday Wind light increasing to southwest 20 knots.
Wednesday Wind northwest 15 knots.

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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

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 18 July 2026 Today Tonight and Sunday At 3:00 a.m. EDT today departing ridge located over Quebec.

At 3:00 a.m. EDT today low 1006 mb located over Lake Superior.
By 3:00 a.m. EDT Sunday low 992 mb located over eastern Quebec.

At 3:00 a.m. EDT today ridge located on a line north-south over
Saskatchewan.
By 3:00 a.m. EDT Sunday ridge located on a line north-south over
northern Ontario.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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