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Donnacona to Beauport

Forecast

Marine Forecast

Issued 03:00 PM EST 20 January 2026

Tonight and Wednesday.

Wind west 15 to 25 knots diminishing to southwest 10 to 15 early Wednesday morning then becoming light Wednesday evening.

Scattered flurries Wednesday late in the day.

Low tonight minus 17. High Wednesday minus 10.

Extended Forecast

Issued 06:00 PM EST 20 January 2026
Thursday Wind southerly 15 knots increasing to southwest 20 to 30 in the morning.
Friday Wind light.
Saturday Wind light.

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Weather Conditions

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Map of St. Lawrence - St. Lawrence River marine weather areas Cap-Chat Mont-Joli Airport Bathurst Airport Île Bicquette Charlo Port Menier Miramichi Pointe-au-Père Fundy Park (Alma) New Carlisle Grand Manan Bas Caraquet CFB Bagotville Jonquière Mistook Normandin Roberval Airport Deschambault Beauport North Bay Airport Trois-Rivières Airport Lake Nipissing - 45152 Kouchibouguac Baie-Comeau Airport Île d'Orléans Saint-Anicet Sainte-Anne-de-Bellevue Cap-Rouge Lac Memphrémagog Montréal Metropolitain Airport Montréal-Trudeau Int'l Airport Île Rouge Lac Saint-Pierre L'Isle-aux-Grues L'Assomption Pointe de l'Islet Pointe Claveau Sept-Îles Airport Pointe-des-Monts 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 Miscou Island Kouchibouguac La Pocatière
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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 EST 20 January 2026 Tonight and Wednesday At 3:00 p.m. EST today trough located on a line northeast-southwest
over Sept-Îles.
By 3:00 p.m. EST Wednesday departing trough located over Labrador
Sea.

At 3:00 p.m. EST today ridge located on a line northeast-southwest
over western Quebec.
By 7:00 p.m. EST Wednesday ridge located on a line
northwest-southeast over the Gulf of St. Lawrence.

By 7:00 p.m. EST Wednesday building low 1007 mb located over
Lake Superior.

St. Lawrence - St. Lawrence River Area

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