In recent years, more homes have added air-conditioning, something that may come in handy this week as some areas are expected to see temperatures 40 degrees above normal.

A burst of unusual March heat is hitting the United States this week and into next, busting previous monthly heat records by wide margins. While heat is most acutely felt by people exposed to it, ...

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

Unusual March heat has pushed temperatures into record territory in parts of the West. More extremes are expected in the days ...

An extreme heat warning remains in place for most inland areas, and a heat advisory for coastal regions, through Friday, with ...

An unusual heat wave is pushing temperatures in San Francisco into the 80s this week, and Los Angeles hit 98 on Tuesday.

All of San Diego County will see some type of heat alert at some point this week, putting us on watch for all-time temperature records for the month of March!

As heat blasts the Southwest, a polar vortex is forecast for the Midwest and East. Snow is expected in the Great Lakes, and an atmospheric river is on tap for Hawaii.

Southern California continues to sizzle under a heat advisory on Friday, as temperatures across the region remain a toasty 15 ...

Temperatures are expected to rise significantly over the next few days, potentially breaking heat records for Southern California.