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Trois-Rivières to Donnacona

Warnings

Forecast

Marine Forecast

Issued 03:00 PM EDT 20 September 2026

Tonight and Monday.

Wind light becoming northerly 10 to 15 knots late overnight then becoming light Monday evening.

Fog banks forming early this evening and dissipating Monday morning.

Extended Forecast

Issued 06:00 PM EDT 20 September 2026
Tuesday Wind northeast 10 to 15 knots.
Wednesday Wind light.
Thursday Wind light.

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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 PM EDT 20 September 2026 Tonight and Monday At 3:00 p.m. EDT today trough located on a line northeast-southwest
over western Lake Saint-Jean.
By 8:00 p.m. EDT Monday departing trough located on a line
northeast-southwest over Newfoundland.

At 3:00 p.m. EDT today high 1028 mb located over Ontario.
By 8:00 p.m. EDT Monday high 1036 mb located over Quebec.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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