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Cornwall to Montréal

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 26 October 2026

Today Tonight and Tuesday.

Wind southwest 15 knots veering to northwest 10 to 20 this afternoon then becoming light near midnight. Wind light Tuesday.

Scattered showers today.

High today plus 15. Low tonight zero. High Tuesday plus 7.

Extended Forecast

Issued 06:00 AM EDT 26 October 2026
Wednesday Wind light.
Thursday Wind light becoming southwest 10 to 15 knots.
Friday Wind southwest 10 to 15 knots veering to northwest 10 to 15.

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Map of St. Lawrence - St. Lawrence River marine weather areas Grand Manan New Carlisle Pointe-au-Père Fundy Park (Alma) Port Menier Miramichi Île Bicquette Charlo Cap-Chat Bathurst Airport CFB Bagotville Jonquière Mistook Normandin Roberval Airport Île-d'Orléans - Quai de St-Jean Deschambault North Bay Airport Beauport L'Isle-aux-Grues Bas Caraquet Lake Nipissing - 45152 Pointe-des-Monts L'Assomption Baie-Comeau Airport Saint-Anicet Cap-Rouge Sainte-Anne-de-Bellevue Lac Memphrémagog Montréal Metropolitain Airport Île Rouge Montréal-Trudeau Int'l Airport Lac Saint-Pierre Trois-Rivières Airport Pointe de l'Islet Pointe Claveau Sept-Îles Airport Kouchibouguac North Cape Pointe-Noire Yarmouth Airport Cap-d'Espoir Brier Island Rivière-la-Madeleine St. Stephen Gaspé Airport Saint John Airport Point Lepreau Greater Moncton Roméo LeBlanc Int'l Airport La Pocatière Miscou Island Mont-Joli Airport
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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 AM EDT 26 October 2026 Today Tonight and Tuesday At 3:00 a.m. EDT today trough located from Labrador to Lake Huron.
By 8:00 p.m. EDT tonight departing trough located on a line
northeast-southwest over Nova Scotia.

At 3:00 a.m. EDT today high 1039 mb located over Manitoba.
By 8:00 p.m. EDT Tuesday high 1032 mb located over southern Quebec.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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