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Donnacona to Beauport

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EST 07 November 2025

Today Tonight and Saturday.

Wind west 10 to 15 knots diminishing to light this morning then increasing to easterly 10 to 15 this afternoon. Wind increasing to southwest 20 to 30 overnight then diminishing to westerly 15 Saturday afternoon.

Snow or rain this afternoon tonight and Saturday morning. Visibility as low as 1 mile in precipitation.

Temperatures minus 3 rising to plus 8 Saturday afternoon then falling to zero Saturday evening.

Extended Forecast

Issued 06:00 PM EST 06 November 2025
Saturday Wind southerly 15 knots veering to west 15 to 20 in the morning.
Sunday Wind light becoming northeast 15 knots.
Monday Wind southwest 15 knots.

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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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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 EST 7 November 2025 Today Tonight and Saturday At 3:00 a.m. EST today ridge located on a line north-south over
Montréal.
By 7:00 p.m. EST Saturday ridge located on a line
northwest-southeast over the Strait of Belle Isle.

At 3:00 a.m. EST today low 996 mb located near Lake Superior.
By 7:00 p.m. EST Saturday low 1001 mb located near Natashquan.

At 3:00 a.m. EST today ridge located on a line east-west over
northern Ontario.
By 7:00 p.m. EST Saturday ridge located from Lake Superior to
Saguenay River.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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