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Cornwall to Montréal

Warnings

Forecast

Marine Forecast

Issued 03:00 PM EDT 03 June 2026

Tonight and Thursday.

Strong wind warning in effect.

Wind southwest 15 knots diminishing to light near midnight then increasing to southwest 10 to 15 early Thursday morning. Wind increasing to southwest 15 to 25 late Thursday morning then becoming southwest 15 Thursday evening.

Extended Forecast

Issued 06:00 AM EDT 03 June 2026
Friday Wind southwest 15 knots.
Saturday Wind west 10 to 15 knots.
Sunday Wind northeast 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

Warnings (In effect)

Strong wind warning in effect

Cornwall to Montréal

Issued 3:00 PM EDT 03 June 2026

'Strong' winds of 20 to 33 knots are occurring or expected to occur in this marine area. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.

Synopsis

Technical Marine Synopsis

Issued 3:00 PM EDT 3 June 2026 Tonight and Thursday At 3:00 p.m. EDT today dissipating trough located on a line
northeast-southwest over Pointe-des-Monts.

At 3:00 p.m. EDT today ridge located on a line northeast-southwest
over Lake Michigan.
By 8:00 p.m. EDT Thursday ridge located on a line east-west over
New England.

Great Lakes - Lake Erie and Lake Ontario Area

Another Region

Marine Weather for Canada

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