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Donnacona to Beauport

Warnings

Forecast

Marine Forecast

Issued 03:00 PM EDT 16 October 2026

Tonight and Saturday.

Wind northeast 15 to 20 knots backing to northwest 15 to 25 this evening then becoming west 15 Saturday evening.

Rain ending near midnight.

Temperatures plus 5 falling to minus 2 Saturday evening.

Extended Forecast

Issued 06:00 PM EDT 16 October 2026
Sunday Wind light.
Monday Wind southwest 15 knots.
Tuesday Wind southwest 10 to 15 knots becoming northerly 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 PM EDT 16 October 2026 Tonight and Saturday At 3:00 p.m. EDT today departing high 1022 mb located off Nova
Scotia.

At 3:00 p.m. EDT today low 992 mb located over Montréal.
By 5:00 p.m. EDT Saturday low 983 mb located over Labrador Sea.

At 8:00 a.m. EDT Saturday ridge located on a line
northeast-southwest over the Great Lakes.
By 8:00 p.m. EDT Saturday ridge located on a line
northeast-southwest over Québec city.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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