Next 24 hours

US AQI

35Now
34
33
376 AM
41
45
439 AM
41
39
4212 PM
44
47
543 PM
61
69
666 PM
63
61
509 PM
39
28
3312 AM
38
43

Air quality outlook

Worst hour each day

Today69Moderate
Sat 1059Moderate
Sun 11500Hazardous
Mon 1286Moderate
Tue 1341Good

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

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About Oak Lawn weather

Oak Lawn is in Cook County, Illinois, United States at 41.71°, -87.76°. Right now it’s 56° and cloudy; today’s high is 70° with a 29% 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.