More than 150 million Americans are under the highest level extreme heat alerts during a wave of above-average temperatures.

An "extremely dangerous heat wave" is continuing to scorch a huge area of the eastern United States June 23, affecting tens ...

An "extremely dangerous heat wave" is continuing to scorch a huge area of the eastern United States June 23, affecting tens ...

Heat doesn’t just mean canceled events. It also poses a health risk. If you can’t afford to cool the whole house, make a ...

A dangerous, record-breaking heat wave will spread over the eastern United States and is expected to last several days.

Many places around the country will experience their first significant heat of the year in the next few days. Here’s why it’s ...

More than 37 million Americans are under heat advisories across the U.S., according to the National Weather Service. Here's ...

A potentially record-breaking heat wave is pushing to the East, impacting millions of Americans in several states and cities.

The first heat wave of summer could bring punishing humidity and triple-digit temperatures to many states east of the Rocky ...

Extreme heat is the deadliest weather-related hazard in the United States, leading to more fatalities than natural disasters ...

A dangerous heat wave is currently baking the eastern two-thirds of the United States with extreme temperatures in the mid-to ...

Those triple-digit air temperatures — with the feels-like index even worse because of humidity — are possible in places where ...