Language selection

Weather shortcuts

Cornwall to Montréal

Forecast

Marine Forecast

Issued 03:00 AM EST 30 December 2024

Today Tonight and Tuesday.

Wind southeast 15 knots veering to southwest 15 near noon then increasing to southwest 15 to 25 early this evening. Wind becoming southwest 15 Tuesday morning then diminishing to light Tuesday afternoon.

Periods of rain ending overnight. Visibility as low as 1 mile in rain.

Temperatures plus 7 falling to minus 1 Tuesday evening.

Extended Forecast

Issued 06:00 AM EST 30 December 2024
Wednesday Wind northeast 15 knots diminishing to light in the afternoon.
Thursday Wind west 15 to 25 knots.
Friday Wind west 15 to 25 knots becoming west 15 late in the day.

Stay connected

ATOM

Weather Conditions

Skip Image

Zoom-in to make a selection

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
Legend:
buoy Buoy
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 30 December 2024 Today Tonight and Tuesday At 3:00 a.m. EST today trough located on a line northwest-southeast
over Lake Ontario.
By 7:00 p.m. EST Tuesday trough located on a line
northwest-southeast over Sept-Îles.

At 3:00 a.m. EST today departing ridge located from Labrador Sea
to Newfoundland.

St. Lawrence - St. Lawrence River Area

Another Region

Features

Canada's 10 most impactful weather stories of 2024

Find out which weather events made the list

Date modified: