Smoke from Canadian wildfires hovered over several Midwestern states Saturday, bringing warnings of unhealthy air.

The Wisconsin Department of Natural Resources issued an air quality alert for all of southeast Wisconsin until noon Sunday, ...

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

An air quality alert has been issued for Coos, Carroll and Grafton counties in New Hampshire on Sunday. Folks who are sensitive to poorer air quality should limit strenuous or prolonged activities in ...

Monday night will bring scattered thunderstorms, some with the potential of being strong to severe. Lows will be in the lower ...