Cornwall to Montréal
Forecast
Marine Forecast
Issued 03:00 AM EDT 19 July 2025
Today Tonight and Sunday.
Wind light becoming southwest 10 to 15 knots this morning then diminishing to light early this evening. Wind becoming northwest 15 Sunday afternoon.
Scattered showers tonight and Sunday.
Extended Forecast
Issued 06:00 PM EDT 18 July 2025
Sunday
Wind light becoming northwest 15 knots in the
afternoon.
Monday
Wind northwest 10 to 15 knots.
Tuesday
Wind light.
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Weather Conditions
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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 19 July 2025 Today Tonight and Sunday At 3:00 a.m. EDT today departing low 982 mb located over LabradorCoast.
At 3:00 a.m. EDT today high located south of Cornwall.
By 8:00 p.m. EDT tonight departing high located near Cape Cod.
At 8:00 p.m. EDT tonight trough located from Sept-Îles to Lake
Huron.
By 8:00 p.m. EDT Sunday trough located from Natashquan to the Gulf
of Maine.
St. Lawrence - St. Lawrence River Area
- Anticosti
- Beauport to L'Isle-aux-Coudres
- Browns Bank
- Chaleur - Miscou
- Cornwall to Montréal
- Donnacona to Beauport
- Fundy
- Grand Manan
- Gulf - Magdalen
- 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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