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Donnacona to Beauport

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 18 June 2026

Today Tonight and Friday.

Wind light becoming northeast 10 to 15 knots early this morning then becoming southwest 10 to 15 near midnight. Wind increasing to southwest 15 to 20 Friday morning then diminishing to light Friday evening.

Rain beginning early this morning with a risk of thunderstorms late this afternoon and this evening changing to showers Friday morning. Visibility 1 mile or less in rain.

Extended Forecast

Issued 06:00 PM 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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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 18 June 2026 Today Tonight and Friday At 3:00 a.m. EDT today ridge located over western Newfoundland.
By 8:00 p.m. EDT tonight departing ridge located over eastern
Newfoundland.

At 3:00 a.m. EDT today low 992 mb located over Lake Michigan.
By 8:00 p.m. EDT Friday low 994 mb located northeast of New
Brunswick.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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