Cornwall to Montréal
Forecast
Issued 03:00 AM EST 20 January 2021
Forecasts have ended for the season.
Stay connected
Weather Conditions
Zoom-in to make a selection

Ice Conditions
Warnings
No watches or warnings in effect.
Synopsis
Technical Marine Synopsis
Issued 3:00 AM EST 20 January 2021 Today Tonight and Thursday At 3:00 a.m. EST today dissipating trough located on a linenorthwest-southeast over Trois-Rivières.
At 3:00 a.m. EST today ridge located on a line northeast-southwest
over Lake Superior.
By 7:00 p.m. EST Thursday ridge located on a line
northwest-southeast over the Gaspe Peninsula.
At 10:00 p.m. EST tonight low 988 mb located near Lake Superior.
By 7:00 p.m. EST Thursday low 996 mb located northwest of Montréal.
Great Lakes - Lake Erie and Lake Ontario Area
Another Region
What we are doing
Weather Forecasts
Weather Alerts
Weather Resources
Features
Need to travel Alberta Highway 93?

Go prepared with Highway 93 forecasts. Highway regions are available in the Alberta text forecast bulletin between Lake Louise and Jasper. (Photo by: Natalie Anderson)
- Date modified: