Several states saw record daily temperatures set on Wednesday, as the heat wave that has been scorching the West expands into ...

"The butterfly garden, even though it is kind of outdoors, was nice and breezy and cool." Record or near-record high ...

Phoenix residents can expect more record-breaking, potentially life-threatening, triple-digit temperatures over the next ...

The gigantic heat dome that baked the Southwest is creeping eastward and could end up being one of the most expansive heat ...

Parts of California and Arizona are under extreme heat warnings again Saturday while sweltering summerlike weather stretched ...

The highest March temperature ever recorded in the U.S. happened on March 19 during Arizona's scorching early heat wave. Here ...

The Arizona desert community of Martinez Lake hit 110 degrees on Thursday, breaking the record for highest March temperature ...

The highest March temperature ever recorded in the nation was in a small Arizona community on March 19, according to the ...

Abnormal heat on the last day of winter continues to set records in the U.S. Southwest. The Arizona desert community of ...

A long-duration heat wave is taking shape over the western half of the U.S. and forecast to stick around in the days ahead.

Extreme heat warnings have been issued to residents across three states as the National Weather Service (NWS) advises those ...

Forecasters are calling the early heat event 'unprecedented,' with temperatures as high as 25 degrees above normal in some ...