Next 24 hours

US AQI

47Now
47
46
4610 PM
45
44
441 AM
43
43
424 AM
41
41
417 AM
41
40
3910 AM
37
40
431 PM
45
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454 PM
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44

Air quality outlook

Worst hour each day

Today47Good
Thu 845Good
Fri 9108Unhealthy for sensitive groups
Sat 10122Unhealthy for sensitive groups
Sun 1157Moderate

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

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About Rockford weather

Rockford is in Winnebago County, Illinois, United States at 42.27°, -89.09°. Right now it’s 64° and mostly clear; today’s high is 76° with a 0% 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.