Cornwall to Montréal
Forecast
Marine Forecast
Issued 03:00 PM EDT 17 August 2022
Tonight and Thursday.
Wind northeast 10 to 15 knots becoming light this evening then becoming northwest 10 to 15 Thursday morning. Wind becoming light Thursday evening.
Extended Forecast
Issued 06:00 AM EDT 17 August 2022
Friday
Wind light becoming west 10 to 15 knots in the
afternoon.
Saturday
Wind light becoming southwest 10 to 15
knots.
Sunday
Wind light.
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 PM EDT 17 August 2022 Tonight and Thursday At 3:00 p.m. EDT today ridge located from James Bay to Labrador.By 8:00 a.m. EDT Thursday departing ridge located on a line
east-west over Labrador.
At 3:00 p.m. EDT today low 1005 mb located over the Gulf of Maine.
By 8:00 a.m. EDT Friday low 1006 mb located over the Gulf of
St. Lawrence.
At 8:00 a.m. EDT Friday approaching ridge located on a line
north-south over Lake Ontario.
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 - northern half
- Gulf - Magdalen - southern 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
WeatherCAN app: set custom notifications

Learn how to set custom Air Quality Health Index notifications on the WeatherCAN app
Are you prepared for summer severe weather?

We have information to help you stay safe
- Date modified: