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Cornwall to Montréal

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 10 October 2026

Today Tonight and Sunday.

Wind northwest 10 to 15 knots becoming light early this morning then becoming southeasterly 10 to 15 this evening. Wind becoming light overnight then becoming southwest 10 to 15 near noon Sunday. Wind becoming light Sunday evening.

Extended Forecast

Issued 06:00 AM EDT 10 October 2026
Monday Wind southwest 10 to 15 knots.
Tuesday Wind northeast 15 to 25 knots.
Wednesday Wind northeast 15 to 25 knots diminishing 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 10 October 2026 Today Tonight and Sunday At 3:00 a.m. EDT today intensifying ridge located on a line
northwest-southeast over western Quebec.
By 2:00 p.m. EDT Sunday weakening ridge located on a line
north-south over Nova Scotia.

At 2:00 p.m. EDT Sunday low 1007 mb located near James Bay.
By 8:00 p.m. EDT Sunday low 1006 mb located north of Lake
Saint-Jean.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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