Northumberland Strait
Forecast
Marine Forecast
Issued 03:00 AM ADT 14 July 2025
Today Tonight and Tuesday.
Wind southwest 15 to 20 knots diminishing to southwest 10 to 15 overnight. Wind southwest 10 to 15 Tuesday.
Extended Forecast
Issued 03:00 AM ADT 14 July 2025
Wednesday
Wind light increasing to southwest 15 to 20
knots in the afternoon.
Thursday
Wind light increasing to easterly 15 to 20
knots.
Friday
Wind southerly 20 to 25 knots becoming
northwest 20 to 25.
Stay connected
Weather Conditions
Zoom-in to make a selection

Legend:


Ice Conditions
Ice Forecasts
Issued 10:00 AM EDT 26 May 2025 Forecasts have ended for the season.Warnings
No watches or warnings in effect.
Synopsis
Technical Marine Synopsis
Issued 3:00 AM ADT 14 July 2025 Today Tonight and Tuesday At 3:00 a.m. ADT today ridge located over the eastern MarineDistrict.
By 8:00 p.m. ADT tonight ridge located over the Grand Banks.
At 10:00 a.m. ADT today low 1015 mb located over southern Georges
Bank.
By 10:00 a.m. ADT Tuesday low 1015 mb located over southern
Banquereau.
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
- 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
- Date modified: