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Cornwall to Montréal

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Forecast

Marine Forecast

Issued 03:00 AM EDT 16 August 2026

Today Tonight and Monday.

Wind light becoming northeast 10 to 15 knots early this evening then becoming light after midnight. Wind light Monday.

Showers tonight and Monday. Visibility as low as 1 mile in showers.

Extended Forecast

Issued 06:00 AM EDT 16 August 2026
Tuesday Wind light.
Wednesday Wind light.
Thursday Wind southwest 10 to 15 knots.

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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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buoy Buoy
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 16 August 2026 Today Tonight and Monday At 3:00 a.m. EDT today ridge located from New England to Saguenay
River.
By 2:00 a.m. EDT Monday ridge located on a line north-south over
Labrador Sea.

At 8:00 p.m. EDT tonight trough located from James Bay to Lake
Huron.
By 8:00 p.m. EDT Monday trough located from Labrador to New England.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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