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 predicted to hit the Midwest and the East Coast on Monday and Tuesday, with the National ...

It will be dangerously hot for the next couple of days as high heat and humidity make it feel like 100 degrees in several ...

Heat alerts have been issued from Colorado to Maine, including more than 150 million Americans. Heat index values in the ...

An extremely dangerous heat wave is underway for the eastern half of the United States as a potent heat dome reaches its peak ...

The rare June heat wave broke about 20 records on Sunday and is expected to break more on Monday. According to The Weather ...

A heat dome is affecting parts of the East Coast and Midwest, leading to record-breaking temperatures just as summer gets ...

A heat dome occurs when a large area of high pressure in the upper atmosphere acts as a reservoir, trapping heat and humidity ...

A potentially life-threatening heat wave hit the East Coast of the United States on Monday, with temperatures expected to climb to 40 degrees Celsius (104 F) in the New York metropolitan area.

"Bright sun and humid conditions will cause AccuWeather RealFeel Temperatures to peak above 100 degrees for millions,” warned ...

A multiday heat wave is bringing high temperatures and health risks from the Midwest to the Northeast, prompting warnings and ...

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