Next 24 hours

US AQI

31Now
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338 AM
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3511 AM
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372 PM
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365 PM
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318 PM
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2811 PM
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262 AM
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Air quality outlook

Worst hour each day

Today37Good
Sun 1841Good
Mon 1941Good
Tue 2090Moderate
Wed 2135Good

From our air-quality forecast models (GEOS-CF / GEFS aerosols). AQI uses the US EPA scale.

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About Montréal weather

Montréal is in Montréal, Quebec, Canada at 45.51°, -73.59°. Right now it’s 3° and mostly cloudy; today’s high is 6° with a 2% chance of rain.

Quebec spans a massive geographic area from the St. Lawrence Valley to the Arctic tundra, producing enormous climate diversity within a single province. The populated southern regions experience a humid continental climate with warm summers and cold, snowy winters. Northern Quebec endures subarctic and arctic conditions with permafrost and extreme cold.