Extreme heat is the number one weather-related killer. Here's what to do—and what to avoid—when you're trying to stay cool.

The temperature reading in Central Park tied a record for July 2 set in 1966. Some 163 million people, from Missouri to Maine ...

The number on the thermometer only tells half the story. Here’s what to know about heat index—and why some scientists are rethinking how it is calculated.

Much of the U.S. is grappling with severely high temperatures and choking humidity this week. Here's what that means for your ...

There's a money-saving sweet spot that doesn't sacrifice comfort.

While official recommendations land at 78 degrees, researchers found that average daytime thermostat settings were 72.1 ...

A fan might have cooled you off throughought the year, but as the country braces for record heat, experts explain why it’s ...

As Pittsburgh's temperatures climb toward triple digits, these are the key heat-related weather terms you should know.

New York City recorded its warmest midnight temperature on record early Friday, as a historic July 4 holiday heat wave broils ...

Connecticut's inland heat reached record levels Thursday at Bradley, with Friday forecast to bring more heat and possible ...

A Spanish monitoring agency said an estimated 212 deaths could be attributed to the heat wave since Sunday. Five people in ...