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

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

At least nine states along the East Coast faced summer swelter on Monday, and the steamy weather is expected to persist on ...

"Dangerous heat will intensify across much of the Northeast and Mid-Atlantic early this week," meteorologist Jacob Hinson said.

It's going to be an uncomfortable weekend for many in the US: As of Friday, an estimated 104 million people are under heat warnings and advisories.

Extreme heat kills more people in the United States than any other weather hazard, and the risk of longer and more frequent heat waves is only expected to increase as climate change worsens. Heat ...

A heat map from the National Weather Service (NWS) shows that on Wednesday more than half of the U.S. was experiencing minor impacts from unseasonably high temperatures, with roughly a dozen ...

CNN is tracking extreme heat conditions for Americans each day. See where the risks are greatest — and where high temperature records might be broken.

Humidity combined with soaring temperatures to create maximum heat indexes between 105 and 115 degrees across the regions, according to the weather service, which warned of major, and, in a number ...

FALCON HEIGHTS, Minn. (AP) — It’s been a wild week of weather in many parts of the United States, from heat waves to snowstorms to flash floods. Millions of people in the Midwest have been ...