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Cornwall to Montréal

Warnings

Forecast

Marine Forecast

Issued 03:00 PM EDT 10 April 2026

Tonight and Saturday.

Wind west 10 to 15 knots becoming light near midnight then becoming northwest 10 to 15 early Saturday morning. Wind becoming light Saturday evening.

Showers ending this evening. Visibility 1 mile or less in showers.

Extended Forecast

Issued 06:00 AM EDT 10 April 2026
Sunday Wind light.
Monday Wind southerly 25 to 35 knots.
Tuesday Wind southwest 15 to 25 knots becoming northeast 15.

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

At 3:00 p.m. EDT today ridge located on a line northeast-southwest
over Lake Superior.
By 8:00 p.m. EDT Saturday ridge located on a line north-south over
Lake Erie.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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