“Hot temperatures can also directly interfere with our sleep by affecting how much slow-wave sleep we get during the night.” ...

During June's heat wave, batteries and solar played a major role in keeping power reliable and lowering costs. It's a trend ...

L.A. County public health officials are urging residents to avoid going in the water at seven local beaches after bacteria ...

The agency took the unusual step of creating websites debunking the conspiracy theory that chemicals are being sprayed in the ...

A new study suggests that, under realistic scenarios of high emissions and socioeconomic development, annual heat-related ...

Southern California is in the middle of a three-day heat wave. As KCAL's Rick Montanez explains, people are heading to places like the Rose Bowl Aquatic Center in Pasadena to keep cool.

The summer heat lingers into Friday. While an isolated downpour is possible, most will remain dry tomorrow as highs climb ...

It’s National Kitten Day and there’s no better time to celebrate second chances  and the local heroes who make them possible. You might remember the story from ...

A third official heat wave is expected to descend this weekend, with record-breaking temperatures possible in Scotland.

A heatwave and possible smoke migration from ongoing wildfires up north means this weekend might be best for indoor ...

KCAL News has issued a Next Weather Alert for the inland communities on Thursday, as peak heat arrives on the last day of a three-day heat wave.

Gusty winds, warm temperatures, and low humidity will elevate fire weather danger in mountainous and interior regions.