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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Canada Perspective Weather Desk. Data from Environment and Climate Change Canada and other national met services via Open-Meteo.
Montrealers should prepare for a significant weather event as Environment and Climate Change Canada has issued a snowfall warning for the city and surrounding areas, with 15 to 25 centimetres expected by Thursday evening. The heaviest snow will arrive during the Wednesday evening commute, making travel hazardous across the island and off-island suburbs.
What is the timing and expected impact of this Montreal storm?
The system will move into the Greater Montreal area Wednesday afternoon, intensifying through the evening rush hour. Snowfall rates could reach 2 to 4 centimetres per hour, reducing visibility on highways like the Trans-Canada and Autoroutes 15 and 20. The snow tapers to flurries by Thursday morning, but lingering squalls may affect the weather forecast snow storm conditions for the morning commute. Residents near the St. Lawrence River and Lac Saint-Louis should watch for localized higher totals due to lake-effect enhancement.
How should Montrealers prepare for this weather warning?
If you are checking the weather in Montreal tomorrow, plan for a slow drive and allow extra time. The city’s snow removal crews will be deployed, but side streets and residential areas may remain slippery. For those looking at weather montreal 14 days, this system marks a return to active winter patterns. The weather winter storm warning page has broader advice for multi-day events, though this warning is focused on a single, intense burst.
Is this a Montreal storm today or tomorrow?
The heaviest snow arrives Wednesday afternoon and evening, so it is a montreal storm today for those reading Wednesday. For Thursday morning, expect only lingering flurries and clearing roads.
Will schools and services be affected by the snowfall warning Montreal?
School bus cancellations are possible Wednesday afternoon and evening. The city may delay garbage collection. Check your school board and municipal app for real-time updates on the montreal weather warning today.
What is the difference between this warning and a blizzard?
A snowfall warning montreal means heavy snow accumulation, not necessarily high winds. A blizzard warning requires sustained winds of 40 km/h or more with blowing snow reducing visibility to near zero for at least four hours.