High temperatures across the Plains, Midwest, mid-Atlantic and Northeast are expected to hit at least 15 degrees above normal ...

The extreme heat warning remains in effect until at least Thursday, when the high temperature is expected to reach 98. Heat index values weren't immediately available Saturday for later in the week.

Dozens of extreme heat advisories and flash flood warnings across the central and southeast U.S. have been issued by the National Weather Service.

It's time to get that air conditioner cranking ― temperatures are going to be roasting for residents living in the South. A heat wave is on its way to the Upstate next week, with temperatures ...

Dangerously hot conditions, with heat index values up to 110 degrees, are expected, a Weather Impact alert has been issued.

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

Experts say climate change is making extreme weather events more frequent and severe, but that our attitudes and actions ...

Another blast of winter weather is expected in parts of the U.S. in the coming days, including bone-chilling wind in the Northern Plains and unusual snow and ice in the Gulf Coast area.

A heat advisory remains in effect until 9pm this evening as most of West Tennessee has a heat index “feels like” temperature between 105-110° this afternoon. We are expecting another hot day on Friday ...

The U.S. is being slammed by extreme weather of all kinds this week, with frigid cold temperatures freezing the central states and catastrophic wildfires scorching California.

The FOX Forecast Center said these extreme conditions can cause frostbite in as little as 30 minutes. Cold weather alerts are posted for more than 76 million people across a vast swath of the ...