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 across 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 ...

More than 200 million people across most of the United States are on alert for widespread, dangerous heat on Monday.

July has already been more humid than average, and now another, less obvious factor will enhance humidity this week: corn ...

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.

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