Millions of Americans are under heat alerts Monday as a heat wave brings triple-digit temperatures or heat indices to nearly ...

A dangerous heat wave continues to scorch a large part of the United States, with more than 130 million people under extreme ...

The National Weather Service has warned of "searing heat and oppressive humidity that occurs during the 'dog days of summer'.

It’s the hottest time of the year in the United States and another heat dome is about to make millions of people feel every ...

A punishing heat wave will bring hot temperatures to eastern US and linger for several days, underscoring how climate change ...

A heat dome takes aim at southeastern United States next with mid-summer swelter, 100-degree Fahrenheit highs and excessive ...

A sweltering heat wave is keeping over 120 million Americans and 28 states in the United States under alert for dangerously ...

More than 11 million people across southern Georgia and most of Florida were under a rare “extreme” heat warning.

NOAA warns of a major heat wave likely to hit much of the U.S. from July 24-30, with extreme temperatures expected, especially in the Ohio and Mississippi River valleys.

Three Democratic lawmakers have proposed legislation to classify extreme heat as a disaster, which would allow federal ...

Extreme humidity and triple-digit temperatures are affecting around 250 million people across the United States. Here's the science behind the heat dome that’s stifling the nation.