Next 24 hours

US AQI

37Now
35
35
347 AM
33
34
3510 AM
35
37
391 PM
41
46
524 PM
57
52
487 PM
43
45
4710 PM
49
47
451 AM
43
42

Air quality outlook

Worst hour each day

Today57Moderate
Sat 1047Good
Sun 11500Hazardous
Mon 1280Moderate
Tue 1338Good

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

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About Wheaton weather

Wheaton is in DuPage County, Illinois, United States at 41.87°, -88.11°. Right now it’s 54° and cloudy; today’s high is 69° with a 30% chance of rain.

Illinois has a humid continental climate with distinct seasons marked by cold, snowy winters and hot, humid summers. The state's flat terrain allows weather systems to move across without obstruction, leading to rapid temperature changes. Chicago's position on Lake Michigan creates a unique lake-effect weather pattern that can moderate summer heat and intensify winter snowfall.