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

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

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 ...

An extreme heat watch is forecasted for this coming week with temperatures hitting triple digits.

The coming week will bring weather extremes of almost every stripe to the U.S.: From a baking heat wave in the Midwest and Northeast to an unseasonable chilly start in the Pacific Northwest. And ...

A brutal heat wave across the eastern United States trapped millions of people in sweltering air this week with record-high ...

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.

Multiple states in the U.S. South could see damaging storms next week, meteorologists say.

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 ...

Forces in the Arctic are combining to push chilly air that usually stays near the North Pole into the United States, and also Europe, for the 10th time this winter.

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

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