The "unhealthy" air, which ranks as level four of six on the Air Quality Index, comes after multiple consecutive days of air quality alerts.

A woman and two men were taken to Stroger Hospital for smoke inhalation after the fire broke Sunday night in the 1900 block ...

A stretch of hot, dry weather is expected to build through the end of the week. CHICAGO - Not only has wildfire smoke been a respiratory irritant for the past several days, it has also held ...

The Chicago area has experienced several days of pleasant temperatures, but the mercury will be trending upward again in ...

Smoke from the more than 700 wildfires burning in Canada is continuing to blanket parts of the Midwest for a final day.

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

CHICAGO (WLS) -- Air Quality Alerts remain in effect for the Chicago area Friday due to smoke from Canadian wildfires.

Air quality alerts have been issued across most of the Midwest, and hundreds of wildfires are burning across Canada.

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

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

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

Wildfire smoke from Canada is blanketing the skies in the Midwest, leaving millions with dangerous breathing conditions.