Montréal to Trois-Rivières
Forecast
Marine Forecast
Issued 03:00 AM EDT 12 October 2026
Today Tonight and Tuesday.
Strong wind warning in effect.
Wind southwest 10 to 15 knots increasing to northeast 15 to 25 late this afternoon then becoming northeast 20 to 30 this evening. Wind northeast 15 to 25 Tuesday.
Periods of rain this afternoon tonight and Tuesday. Visibility 1 mile or less in rain.
Extended Forecast
Issued 06:00 AM EDT 12 October 2026
Wednesday
Wind northeast 15 to 25 knots diminishing to
northwest 10 to 15 in the morning.
Thursday
Wind northwest 10 to 20 knots becoming
light.
Friday
Wind northeast 15 knots.
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Weather Conditions
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Ice Conditions
There is no ice forecast issued for this area.
Warnings
Warnings (In effect)
Strong wind warning in effect
Montréal to Trois-Rivières
Issued 03:00 AM EDT 12 October 2026'Strong' winds of 20 to 33 knots are occurring or expected to occur in this marine area. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio.
Synopsis
Technical Marine Synopsis
Issued 3:00 AM EDT 12 October 2026 Today Tonight and Tuesday At 3:00 a.m. EDT today trough located on a line east-west overAnticosti Island.
By 8:00 p.m. EDT tonight quasi-stationary trough located on a line
east-west over Lake Ontario.
At 3:00 a.m. EDT today ridge located from Hudson Bay to Labrador.
By 3:00 a.m. EDT Tuesday quasi-stationary ridge located on a line
northwest-southeast over New Brunswick.
At 3:00 p.m. EDT Tuesday departing ridge located on a line
northwest-southeast over New Brunswick.
St. Lawrence - St. Lawrence River Area
- Anticosti - northwestern half
- Anticosti - southeastern half
- Beauport to L'Isle-aux-Coudres
- Browns Bank
- Chaleur - Miscou - eastern half
- Chaleur - Miscou - western half
- Cornwall to Montréal
- Donnacona to Beauport
- Fundy
- Grand Manan
- Gulf - Magdalen - northeastern half
- Gulf - Magdalen - southwestern half
- Kingston to Cornwall
- Lake Memphrémagog - northern half
- Lake Nipissing
- Lake Saint-Jean
- Lurcher
- L'Isle-aux-Coudres to Tadoussac
- Montréal to Trois-Rivières
- Northumberland Strait
- Pointe à Michel to Pointe-des-Monts
- Pointe-des-Monts to Anticosti - northern half
- Pointe-des-Monts to Anticosti - southern half
- Richelieu River and Northern Lake Champlain
- Saguenay to Tadoussac
- Tadoussac to Pointe à Michel
- Trois-Rivières to Donnacona
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