Next 24 hours

US AQI

37Now
38
39
3912 PM
41
42
433 PM
43
42
416 PM
40
39
379 PM
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3512 AM
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353 AM
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316 AM
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31

Air quality outlook

Worst hour each day

Today43Good
Sat 1043Good
Sun 1158Moderate
Mon 1284Moderate
Tue 1373Moderate

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

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About Vaughan weather

Vaughan is in York, Ontario, Canada at 43.84°, -79.50°. Right now it’s 9° and mostly clear; today’s high is 17° with a 2% chance of rain.

Ontario's climate is as vast and varied as the province itself. Southern Ontario enjoys a humid continental climate moderated by the Great Lakes, producing warm, humid summers and cold winters. Northern Ontario experiences subarctic conditions with long, frigid winters and short, cool summers.