The National Weather Service called the warm and above-average temperatures coming in behind the system "the first ...

Exposure to extreme heat is risky for children, the elderly, people working outdoors and those with certain health conditions ...

Extreme temperatures and humidity from a heat dome will pose health risks to millions across the U.S., experts say.

A powerful heat wave will bring intense swelter to New York City and other major Eastern Seaboard cities, with heat indices rising into the triple ...

Summer will make a dramatic entrance in the U.S. this week with a heat dome that will bring stifling heat and uncomfortable ...

A heat wave is in the forecast for eastern Nebraska this weekend, with the heat index predicted to reach triple digits.

A wild stretch of weather is expected to engulf the NYC area in the coming days, bringing a mixed bag of heavy rain, ...

Heat is the number one killer -- and it’s heading to the most densely populated part of America for a prolonged period.

A watch indicates that conditions are favorable for severe weather, while a warning means that severe weather is imminent or ...

The first major U.S. heat wave of the year starts on Friday. It brings dangerously high temperatures and is expected to last ...