As of Aug. 6, there are about 750 active Canadian wildfires, with at least 190 labeled “out of control,” according to the ...

While an air quality alert continues for parts of the Midwest due to smoke from Canadian wildfires, northeastern Illinois was ...

Millions of people were told to monitor themselves for the symptoms at least through Monday night, but possibly longer.

Cities including Milwaukee, Buffalo, Detroit, and Cleveland, Ohio, have reported poor air quality due to smoke from current ...

Parts of the Midwest and Northeast are experiencing poor air quality Monday as smoke from Canadian wildfires drifts into the ...

Parts of the Northeast are experiencing poor air quality Monday as smoke from Canadian wildfires drifts into the U.S.

The tick-borne disease—which singer Justin Timberlake revealed this week he has been suffering from—is increasing in the U.S.

Dangerous heat continues across the U.S. as millions face feels-like temperature reaching into the 90s and 100s from the ...

The heat index, or how it feels with humidity factored in, will rise into the triple digits for millions as the hot dome of high pressure engulfs the central and eastern states.

The National Weather Service has sent out millions of extreme heat warnings, heat watches and heat advisory alerts this week, ...

The National Weather Service sent out millions of extreme heat warnings, heat watches and heat advisory alerts early Monday ...

The peak average highs for many in the United States are hit in July or early August, but in some locations it's as early as June or as late as early fall.