A long-duration heat wave is taking shape over the western half of the U.S. and forecast to stick around in the days ahead.

As a heat wave envelops the West, 32 million people from Texas to California are on alert for life-threatening temperatures. Thursday and Friday will be the hottest days, when temperatures could ...

At least seven states are expecting impacts from a new heat wave set to sweep into the U.S. this week.

It rewrote March record books and even topped a few April records. Here's our full recap on this historic early spring heat wave and how climate change likely influenced it.