More triple-digit temperatures baked parts of Los Angeles and Orange counties on Friday as a late-summer heat wave promises to stretch into the weekend, prompting an extension of some heat warnings ...

LAS VEGAS — Intense heat will blanket much of the West this week, with temperatures in some states expected to soar to record-breaking highs, elevating the risk of dangerous wildfires and heat-related ...

A heat wave hitting the West, sending temperatures soaring past the century mark, is expected to persist into the weekend, with the most intense and prolonged heat expected in the Desert Southwest.

The heat wave is continuing into the weekend, but cooler weather is on the way when the high pressure moves east. Here is your full forecast. Wow, it was a scorcher Thursday across the Central Coast ...

A cyclist and hikers head down the path at dusk at Mt. Rubidoux in Riverside earlier this month. Temperatures will be on the rise next week. (Gina Ferazzi / Los Angeles Times) The season's most ...

Millions in the West are facing heat watches and warnings as a dangerous heat wave grips the region, increasing fire risks amid dry conditions. Parts of California, Oregon and Washington state will ...

Heat waves have been the story of the summer in Massachusetts, and it's not letting up anytime soon with temperatures expected to hit the mid-90s this week. We expect high temperatures between 90 to ...

A new study finds dozens of heat waves would be "virtually impossible" without the activity of major fossil fuel producers, ...

A new study has determined that 55 heat waves over the past quarter-century would not have happened without human-caused ...

Planet-warming emissions from a group of the world’s largest fossil fuel producers have significantly ramped up the intensity ...