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

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

Millions of Americans have been urged to avoid driving amid concerns over high air pollution levels. Air quality alerts were issued across parts of Illinois, Colorado, Wyoming, and Arizona on Thursday ...

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 ...

Air quality alerts remain in effect from Minnesota to the Northeast due to smoke from hundreds of wildfires in Canada. In the ...

Thursday begins with a good deal of sunshine, but as temperatures heat up, clouds will build towards lunchtime and into the ...

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

Air quality alerts have been issued across 12 states for Wednesday, according to the National Weather Service.

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

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

Smoke from Canadian wildfires drifted into the region last week. Doctors said they've seen an influx in appointments for respiratory problems as a result.

As the city's surface warms, it heats the air above it, causing that air to rise. This rising motion can pull in smoke-laden air from the north, bringing it down to the surface.