The stretch of abnormally high temperatures that gripped the western and central United States through much of March 2026 is ...

An unprecedented heat wave for the month of March is continuing to hold strong across the southwestern and western United ...

During a heat wave, much attention is paid to extremely high temperatures during the daytime, but it’s the warm overnight lows that can be really dangerous. Many think they'll get some relief as the ...

An oppressive heat wave across much of the western United States had cities and their residents sweltering through conditions ...

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.

How Southern Californians experience the heat wave varies depending on several factors, a NASA study shows.

In an unprecedented heat wave, we check in on the newts, the bears, the mussels, and all those flowers that just woke up for spring.

In a large area with hard-scaping like downtown, temperatures can run 20 to 30 degrees higher during the day than a rural ...

'This is effectively a full-on summer heat wave in March,' a climate scientist wrote on X.

Temperatures in Phoenix soared to 105 degrees on March 19, breaking the record of 97 for this date in 2017, according to the ...