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Kingston to Cornwall

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EDT 18 April 2026

Today Tonight and Sunday.

Wind southeast 15 knots veering to south 20 this afternoon then to southwest 15 early this evening. Wind veering to west 15 late overnight then diminishing to west 10 Sunday afternoon.

Showers beginning this evening with a risk of thunderstorms early this evening becoming scattered flurries or scattered showers Sunday morning and ending Sunday morning. Scattered showers or scattered flurries Sunday late in the day.

Extended Forecast

Issued 03:00 AM EDT 18 April 2026
Monday Wind northwest 15 knots diminishing to light late in the day.
Tuesday Wind light becoming south 15 knots.
Wednesday Wind light.

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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 10:30 AM EDT 18 April 2026 Today Tonight and Sunday At 10:30 a.m. EDT today low 986 mb located over James Bay.
By 10:30 a.m. EDT Sunday low 980 mb located over eastern Hudson Bay.

At 10:30 a.m. EDT today cold front located on a line north-south
over western Lake Huron.
By 10:30 a.m. EDT Sunday departing cold front located on a line
northeast-southwest over eastern Quebec.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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