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

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

Chicago was listed as the worst air quality in the world for part of Aug. 1 because of smoke from the fires blowing southeast ...

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

The hazy skies in the Chicago area are the visible sign of the poor air quality Thursday as smoke from Canadian wildfires ...

The smoke is expected to remain over the northern and central Plains of the United States for the next couple of days, ...

An air quality alert covering the entire state of Minnesota continues on Thursday, marring otherwise fairly ideal weather ...

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

Air quality will deteriorate across 12 states through Saturday, mainly in the Upper Midwest, as wildfire smoke pours into the US from northwestern Canada brought by the cold front that is ushering in ...

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