A heat wave is moving in, with over 100 million people from the Midwest to the Northeast on alert for life-threatening heat ...

Heat is the number one killer -- and it’s heading to the most densely populated part of America for a prolonged period.

An intense heat wave is affecting nearly two-thirds of the U.S., with extreme alerts in states like Kansas and New York.

June 20 marks the first official day of summer, with millions of Americans already under heat warnings. See cities hotter ...

The minimum daily temperatures in parts of the Upper Midwest and Great Plains could set new record highs tonight, while the ...

On the first official day of summer, millions of Americans already under heat warnings. These Oklahoma cities are hotter than ...

Meteorologists are warning of a dangerous heat wave that is going to grip the Midwest and Northeast regions of the U.S. this ...

A Midwest heat dome is driving high temperatures and high humidity that will push the Chicago heat index into the triple ...

The National Weather Service called the forecast for above-average temperatures "the first significant heat wave this season.

A “significant and extremely dangerous heat wave” is expected to send temperatures soaring across much of the United States ...

Widespread 90s, even perhaps a few 100s, will bake much of the eastern two-thirds of the country in a dangerous heat wave.

Heat dome will cause dangerously high temperatures in many places across the country this weekend, especially the Midwest and ...