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

Heavy storms in the Carolinas brought between 1 to 4 inches of rain and prompted several flash flood warnings on Friday.

Smoke from wildfires blazing across Canada is once again wafting over huge portions of the Midwest and worsening air quality, ...

Smoke from wildfires blazing across Canada is once again wafting over huge portions of the U.S. Midwest and worsening air ...

Good afternoon, Chicago. Air quality alerts issued today in Illinois because of Canadian wildfire smoke marked the latest ...

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

Every air quality monitor in Minnesota is reporting red or unhealthy conditions for everyone, an official said.

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

Chicago had the worst air quality in the world for a few hours Thursday, thanks 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 ...

An Illinois Air Pollution Action Day is declared when weather conditions are such that widespread ozone and or particulate ...