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.

National Weather Service officials called an air quality alert in effect until midnight as well as a beach hazard warning.

"The air quality is officially dangerous in Chicago," says Brian Urbaszewski, director of environmental health programs at ...

National Weather Service officials issued an air quality alert set to expire at midnight Saturday for the Chicago and ...

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

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

Most of the Chicago area remains under an Air Quality Alert this weekend due to smoke from Canadian wildfires.

Chicago's Air Quality Alert continues due to Canadian wildfire smoke, with health advisories for sensitive groups amidst ...