Beauport to L'Isle-aux-Coudres
Forecast
Marine Forecast
Issued 10:08 AM EDT 28 July 2026
Today Tonight and Wednesday.
Wind light increasing to northeast 10 to 20 knots early this afternoon with gusts to 45 near thunderstorms today. Wind becoming light near midnight. Wind light Wednesday.
Scattered showers. Risk of thunderstorms this afternoon and this evening.
Extended Forecast
Issued 06:00 AM EDT 28 July 2026
Thursday
Wind northeast 10 to 15 knots.
Friday
Wind northeast 10 to 15 knots diminishing to
light late in the day.
Saturday
Wind light.
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Weather Conditions
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Ice Conditions
There is no ice forecast issued for this area.
Warnings
Watches (In effect)
Squall watch in effect
Beauport to L'Isle-aux-Coudres
Issued 10:04 AM EDT 28 July 2026 This afternoon and this evening, conditions will be favourable for the development of squalls with wind gusts up to 45 knots, frequent lightning, hail and poor to very poor visibility due to showers at times heavy.Proceed with caution as visibility may suddenly be reduced to near-zero. Vessels without lightning protection should make their way to shore immediately. Mariners are advised to prepare for potential squalls. Vulnerable vessels are most at risk and should seek safe harbour if underway. Consider delaying or postponing travel in areas under the Squall Watch.
Please continue to monitor alerts and forecasts issued by Environment Canada. For more information monitor Canadian Coast Guard radio or Weatheradio stations.
Synopsis
Technical Marine Synopsis
Issued 3:00 AM EDT 28 July 2026 Today Tonight and Wednesday At 3:00 a.m. EDT today trough located from Lake Michigan toLabrador.
By 8:00 p.m. EDT Wednesday quasi-stationary trough located over
Montréal to Sept-Îles.
St. Lawrence - St. Lawrence River Area
- Anticosti
- 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
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ATOM