Some major cities under heat alerts include New Orleans, Memphis, Little Rock, St. Louis, Kansas City, Chicago and ...

"Expect some localized daily record highs to be broken in the Southeast, with an even larger swath of daily record warm ...

It’s the hottest time of the year in the United States and another heat dome is about to make millions of people feel every ...

Extreme heat warnings are in effect for parts of Arkansas, Missouri, Illinois, Kentucky, Tennessee, Mississippi and Louisiana.

Three Democratic lawmakers have proposed legislation to classify extreme heat as a disaster, which would allow federal ...

A long stretch of blistering heat is on the way for portions of the Plains and southern United States, while breaks from the ...

The rash of global heat waves across the Northern Hemisphere comes as average global temperatures continue to climb, driven ...

Millions of Americans have been urged to stay out of the sun today as heat index temperatures soar into the triple digits.

Warm, humid conditions across the central and eastern United States have made the region especially vulnerable to flash ...

The National Weather Service has warned of "searing heat and oppressive humidity that occurs during the 'dog days of summer'." ...

NOAA warns of a major heat wave likely to hit much of the U.S. from July 24-30, with extreme temperatures expected, ...