Concern for poor air quality in the greater Chicago area remains as the Illinois EPA extends its alert until Thursday night.

Chicago will see near-90 temperatures, high humidity, and poor air quality today, with storm chances returning tonight.

Wildfire smoke brings hazy skies and poor air quality to Chicago today, with hot and humid weather building into the weekend.

According to the National Weather Service, the air quality alert remains in effect through midnight in parts of the Chicago ...

An air quality alert in the Chicago area has been extended for another day as Canadian wildfire smoke continues to plague the ...

Wildfire smoke from Canada is a problem again in the Chicago area, with an air quality alert in place now extended through Wednesday night.

CHICAGO (WLS) -- An air quality alert has been extended for part of the Chicago area through Thursday. The alert for McHenry, Lake, Kane, DuPage, Kendall, Grundy, Cook and Will counties in Illinois ...

Temperatures continue to creep up in Chicagoland this week, with Wednesday highs in the mid- to upper 80s. With winds ...

Breathing in polluted air for extended periods of time can pose a serious health risk for people, especially for vulnerable ...

An Air Quality Alert is active until Thursday night at midnight. People with sensitivities should take precautions.

The skies have been getting hazier with all the wildfire smoke in the air, but we sometimes get air quality alerts for ...