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

While the haze slightly lifted Saturday morning, air quality levels are expected to worsen across the Chicago area over the ...

Air quality will deteriorate across 12 states through Saturday, mainly in the Upper Midwest, as wildfire smoke pours into the ...

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

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

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

Damaging winds, large hail and a few tornadoes will also be possible with these storms.Elsewhere, wildfire smoke from Canada ...

An Air Quality Alert was still in effect for a third straight day, but for a smaller portion of the Chicago area.

According to the Chicago Office of Emergency Management, the alert has been extended through Saturday night. Highs today will ...

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

Friday morning, Chicago's air quality showed a PM 2.5 of 157. Typically, anything above 100 is considered to be hazardous to at least some groups, and anything over 150 is considered to be “unhealthy, ...