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Donnacona to Beauport

Warnings

Forecast

Marine Forecast

Issued 03:00 PM EDT 17 June 2026

Tonight and Thursday.

Wind light increasing to northeast 10 to 15 knots late overnight then becoming northeast 10 to 20 near noon Thursday. Wind becoming southwest 10 to 15 Thursday evening.

Scattered showers ending this evening with a risk of thunderstorms. Rain Thursday afternoon and evening. Visibility as low as 1 mile in rain.

Extended Forecast

Issued 06:00 AM EDT 17 June 2026
Friday Wind southwest 20 to 30 knots.
Saturday Wind west 15 to 25 knots diminishing to light late in the day.
Sunday Wind light.

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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 - Quai de St-Jean 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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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 17 June 2026 Tonight and Thursday At 3:00 p.m. EDT today ridge located over Nova Scotia.
By 8:00 p.m. EDT Thursday ridge located over Newfoundland.

At 3:00 p.m. EDT today low 992 mb located over the Midwestern
states.
By 8:00 p.m. EDT Thursday low 987 mb located west of Québec city.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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