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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Civic Maple Weather Desk. Data from Environment and Climate Change Canada and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Montréal weather is defined by four distinct seasons, with cold, snowy winters and warm, humid summers. The live forecast above shows current conditions; for planning, expect January highs near -6°C and July highs around 26°C, with rain or snow possible year-round.
What is the weather in Montreal today and tomorrow?
Check the live forecast above for the most accurate reading of weather in Montreal today. For weather in Montreal tomorrow, the forecast typically updates by late afternoon. Conditions can shift quickly due to the St. Lawrence River and Lake Saint-Louis, so always verify before heading out.
How do I check Montreal weather for 10 days, 14 days, or 30 days?
For weather in Montreal 10 days, use the live forecast above and scroll to the extended outlook. Montreal weather 15 days and montréal weather 14 days are available through the same tool, though accuracy drops beyond a week. For montreal weather 30 days, rely on trend-based outlooks from Environment Canada rather than precise daily numbers.
Does Montreal get extreme heat or cold?
Yes. Winter wind chills can drop below -30°C, while summer humidex values often exceed 35°C. Both extremes are common, so dress in layers and stay hydrated.
When is the best time to visit Montreal for weather?
Late May to early October offers the most comfortable conditions, with mild to warm temperatures and lower rain chances. September is particularly pleasant for outdoor activities.
How reliable is the montréal weather hourly forecast?
Hourly forecasts are reliable for the next 48 hours, especially for temperature and precipitation timing. Beyond that, accuracy decreases, so check the live forecast above for updates.
Sources
For more Canadian city forecasts, visit our Canada weather hub or check Toronto Weather and Ottawa Weather. For extended planning, see Weather 10 Days.