With triple-digit temperatures expected through the weekend, Valley doctors are offering advice on how to stay cool.

A cardiologist explains how summer heat forces the heart to work harder as blood vessels widen, potentially triggering cardiovascular events and other symptoms.

Heat wave expected to bring triple digits temperature to some parts of Southern California this weekend.

One challenge for predicting a heat wave’s impacts, says Anand Srinivasan, a Cotality executive who develops climate change-related products, is that heat damage is relatively complex to model.

That's according to the National Weather Service in Sacramento, which also placed the Redding area and parts of Northern California under an excessive heat warning that lasts through 11 p.m. Monday.

The mini heat wave that hit on Wednesday was peaking on Thursday and the weekend will be somewhat cooler.

The NWS Sacramento CA issued a heat advisory at 1:31 p.m. on Thursday valid from Friday 11 a.m. until Monday 11 p.m. The advisory is for Shasta Lake, Northern Sacramento Valley, Central Sacramento ...

‘Mini heat wave’ descends on Southern California Katie Torres cool off her son Augustine Torres in the splash pool at La Pintoresca Park in Pasadena on Wednesday, July 9, 2025. A heat wave with ...

As the heat wave continues on in Southern California, residents and outside workers are looking for ways to beat the extended heat in Los Angeles, Orange, Riverside and San Bernardino counties.