Extreme heat is impacting states across the country. See maps of high temperature forecasts and heat index levels.

After a day of hot weather, the National Weather Service warns that Indianapolis could expect showers and thunderstorms throughout the evening.

"Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors," an ...

Stay safe in this sweltering heat, New Jersey. Here's the latest today, from heat maps, advisories and warnings, to when we'll see relief.

A heat wave is currently affecting about 160 million people, according to the National Weather Service. Here's which states ...

A heat wave hit much of the central U.S. over the weekend, while snow and cool temperatures arrived in the Northwest.

States in the central and eastern U.S. are currently under extreme heat watches and warnings, as they brace for a dangerous ...

Here's what we know about the heat wave expected to scorch North Carolina in the next several days, plus state historic high temperatures and more.

More water will be sent from upstream to depleted Lake Powell, and less will be released downstream to Lake Mead. Water experts said these moves will bail out a short-term ...

Los Angeles and Southern California will see warmer conditions Wednesday as temperatures start to gradually heat up heading into the weekend.

Friday likely sees developing sunshine and the weekend forecast continues to show sunny 80s. Watch for possible heat spike Monday with Portland highs warming into the 90s, but only for one day.