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Cornwall to Montréal

Warnings

Forecast

Marine Forecast

Issued 03:53 PM EDT 22 March 2025

Tonight and Sunday.

Wind southwest 20 to 30 knots veering to northwest 20 to 30 late this afternoon then diminishing to west 10 to 20 late overnight. Wind becoming light near noon Sunday.

Showers changing to flurries this afternoon and ending this evening. Visibility 1 mile or less in flurries.

Low tonight minus 10. High Sunday minus 2.

Extended Forecast

Issued 06:00 PM EDT 22 March 2025
Monday Wind northeast 15 to 25 knots.
Tuesday Wind southwest 10 to 15 knots increasing to southwest 15 to 25.
Wednesday Wind southwest 10 to 15 knots becoming northeast 10 to 15.

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Map of St. Lawrence - St. Lawrence River marine weather areas Lake Nipissing - 45152 North Bay Airport Beauport Deschambault Île d'Orléans L'Assomption Trois-Rivières Airport L'Isle-aux-Grues Lac Saint-Pierre Montréal-Trudeau Int'l Airport Saint-Hubert Airport Lac Memphrémagog Sainte-Anne-de-Bellevue Saint-Anicet Baie-Comeau Airport Cap-Rouge Île Rouge Pointe de l'Islet Pointe Claveau Sept-Îles Airport Pointe-des-Monts Pointe-Noire Cap-d'Espoir Rivière-la-Madeleine Gaspé Airport La Pocatière Mont-Joli Airport New Carlisle Pointe-au-Père Port Menier Île Bicquette Cap-Chat CFB Bagotville Jonquière Mistook Normandin Roberval Airport Bas Caraquet Bathurst Airport Charlo Miramichi Fundy Park (Alma) Grand Manan Kouchibouguac Kouchibouguac Miscou Island Greater Moncton Roméo LeBlanc Int'l Airport Point Lepreau Saint John Airport St. Stephen Brier Island Yarmouth Airport North Cape
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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 3:00 PM EDT 22 March 2025 Tonight and Sunday At 3:00 p.m. EDT today cold front located from Lake Saint-Jean to
Lake Ontario.
By 8:00 a.m. EDT Sunday departing cold front located on a line
north-south over Anticosti Island.

At 8:00 a.m. EDT Sunday ridge located on a line north-south over
Lake Ontario.
By 8:00 p.m. EDT Sunday ridge located on a line north-south over
Montréal.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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