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Cornwall to Montréal

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 28 March 2025

Today Tonight and Saturday.

Wind northwest 15 to 25 knots becoming west 15 early this morning then diminishing to light this afternoon. Wind increasing to northeast 10 to 15 late this evening and to northeast 15 to 25 overnight. Wind diminishing to northeast 10 to 15 Saturday afternoon.

Snow tonight and Saturday. Visibility 1 mile or less in snow.

Temperatures plus 1 falling to minus 5 this morning then rising to zero this evening. Temperatures falling to minus 7 Saturday morning.

Extended Forecast

Issued 06:00 PM EDT 27 March 2025
Saturday Wind northeast 15 to 25 knots diminishing to northeast 10 to 15 late in the day.
Sunday Wind northeast 15 knots increasing to northeast 15 to 25.
Monday Wind southeast 15 to 25 knots veering to southwest 15 to 25.

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Map of St. Lawrence - St. Lawrence River marine weather areas Lake Nipissing - 45152 North Bay Airport Beauport Deschambault Île d'Orléans L'Assomption Trois-Rivières Airport L'Isle-aux-Grues Lac Saint-Pierre Montréal-Trudeau Int'l Airport Saint-Hubert Airport Lac Memphrémagog Sainte-Anne-de-Bellevue Saint-Anicet Baie-Comeau Airport Cap-Rouge Île Rouge Pointe de l'Islet Pointe Claveau Sept-Îles Airport Pointe-des-Monts Pointe-Noire Cap-d'Espoir Rivière-la-Madeleine Gaspé Airport La Pocatière Mont-Joli Airport New Carlisle Pointe-au-Père Port Menier Île Bicquette Cap-Chat CFB Bagotville Jonquière Mistook Normandin Roberval Airport Bas Caraquet Bathurst Airport Charlo Miramichi Fundy Park (Alma) Grand Manan Kouchibouguac Kouchibouguac Miscou Island Greater Moncton Roméo LeBlanc Int'l Airport Point Lepreau Saint John Airport St. Stephen Brier Island Yarmouth Airport North Cape
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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 28 March 2025 Today Tonight and Saturday At 3:00 a.m. EDT today low 1009 mb located over Saguenay River.
By 11:00 a.m. EDT Saturday dissipating low 1010 mb located south
of Newfoundland.

At 3:00 a.m. EDT today ridge located on a line northwest-southeast
over northwestern Ontario.
By 8:00 p.m. EDT Saturday ridge located from Hudson Bay to Nova
Scotia.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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