Wildfire smoke from Canada turned Chicago into one of the world’s most polluted metro areas as the Lollapalooza music festival began.

For a period of time this week, Chicago's air quality ranked as the worst air quality on planet earth. This was caused by smoke billowing south from ...

Lollapalooza 2025 got underway Thursday in Chicago with headlining performances by Luke Combs and Tyler, The Creator, plus ...

Chicago faces health concerns due to smoke from Canadian wildfires, leading to an "unhealthy" air quality alert.

Smoke has continued to cloud Illinois' air for a second straight day, but the poor air quality isn't because of a fire in the ...

Summer has officially returned to Chicagoland, and while there is plenty to love about the city’s favorite season, the summer heat could also be a source of headaches, especially ...

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

Hazy skies from wildfire smoke will linger through the weekend in Chicago, with mild temperatures and an air pollution alert in place.

The Chicago White Sox scratched Adrian Houser from Wednesday’s scheduled start. It was done with the trade deadline in mind.

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

Due to active wildfires in Canada, the Stateline’s air quality is in the red zone, considered unhealthy, and people are advised to stay indoors and wear a mask if they have to go outside.

Ald. Ray Lopez described the flooding as “horrendous” with some residents dealing with more than 2 feet of water. He's ...