The heat is expected to peak Thursday and Friday in Los Angeles and Orange counties and Monday and Tuesday in the Inland Empire.

Southern California faces a record-breaking winter heat wave with temperatures surging 20 to 30 degrees above seasonal norms, bringing high risks for millions of residents through Friday.

A March heat wave could bring record-breaking temperatures over 100 degrees to parts of California, weather experts say.

PHOENIX – The latest Valley forecast calls for overnight showers followed by a potentially “historic” heat wave. Sean Benedict, a meteorologist with the National Weather Service in Phoenix, said the ...

A heat wave is expected to set record high temperatures in parts of the West Coast this week, bringing sizzling days and wildfire risks to millions. Parts of Oregon, California, a ...

A new study shows heat waves increasingly trigger sudden, severe droughts across the world as the planet warms.

A prolonged early-season heat wave is expected to push temperatures into the 80s and 90s across Santa Barbara County beginning Wednesday, with the hottest ...

Temperatures soar this week to near record highs, and they look to stay there all the way through early next week. Widespread, beneficial rainfall is not expected this week causing drought conditions ...

Temperatures 30 degrees above normal are expected in parts of California as a startling weather event unfolds over the next 10 days.

Las Vegas is expecting a heat wave to close out winter, with temperatures reaching possible record highs in the mid-90s next week.

Europe is struggling more and more with extreme heat in the summer. While climate change is the main reason for this increase, what specific physical mechanisms cause a heat wave? One important driver ...