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 ...

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

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

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.

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

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 air quality remains in the top five worst in the world Friday with an Air Quality Alert in place from Canadian wildfire smoke.

An air quality alert was issued for the Chicago area through midnight on Wednesday due to lingering Canadian wildfire smoke. According to AirNow, Chicago is under "moderate" air quality.

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

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