Arlington Heights, IL Air Quality
As of 3:48 AMAir quality index36Good
Air quality is great — a good day to be outside.
Next 24 hours
US AQIAir quality outlook
Worst hour each day- Today45Good
- Sat 1049Good
- Sun 11500Hazardous
- Mon 1286Moderate
- Tue 1338Good
From our air-quality forecast models (GEOS-CF / GEFS aerosols). AQI uses the US EPA scale.
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Open full mapAbout Arlington Heights weather
Arlington Heights is in Cook County, Illinois, United States at 42.09°, -87.98°. Right now it’s 53° and cloudy; today’s high is 69° with a 32% 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.
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