Cornwall to Montréal
Forecast
Marine Forecast
Issued 09:25 AM EDT 18 May 2022
Today Tonight and Thursday.
Wind northwest 10 to 15 knots becoming southwest 10 to 20 late this morning then becoming light early this evening. Wind becoming southeast 10 to 15 near noon Thursday then becoming light Thursday evening.
Showers Thursday.
Extended Forecast
Issued 06:00 AM EDT 18 May 2022
Friday
Wind light becoming south 15 knots in the
afternoon.
Saturday
Wind southwest 10 to 15 knots.
Sunday
Wind southwest 15 knots.
Stay connected
Weather Conditions
Zoom-in to make a selection

Legend:


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 18 May 2022 Today Tonight and Thursday At 3:00 a.m. EDT today low 993 mb located near Sept-Îles.By 8:00 p.m. EDT Thursday low 997 mb located off Labrador Coast.
At 3:00 a.m. EDT today ridge located on a line north-south over
the Great Lakes.
By 8:00 p.m. EDT Thursday ridge located on a line
northwest-southeast over Anticosti Island.
St. Lawrence - St. Lawrence River Area
- Anticosti - eastern half
- Anticosti - western half
- Beauport to L'Isle-aux-Coudres
- Browns Bank
- Chaleur - Miscou
- 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
Another Region
What we are doing
Weather Forecasts
Weather Alerts
Weather Resources
Features
Hello Weather

Hello Weather: our upgraded telephone weather service is here. 1-833-794-3556 or 1-833-79HELLO.
- Date modified: