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

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 ...

The alert was also issued because of unhealthy ozone levels in addition to the smoke particles. The Chicago area has been ...

Chicago is under an Air Quality Alert today because of wildfire smoke. The air quality is considered "unhealthy," especially for children, seniors, and people with heart or lung conditions. CHICAGO - ...

An air quality alert for the Chicago area was extended for a second time as smoke from Canadian wildfires lingers overhead Saturday. The National Weather Service extended an air quality alert for ...

Chicago faces an air quality alert due to Canadian wildfire smoke and high ozone levels, with risks for sensitive groups.

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.

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

An air quality alert is in effect for Chicago until midnight Monday due to the smoke. A visible haze and smoky smell were present throughout the area Sunday, and the air quality is considered ...