A heatwave grips the eastern US, with 185 million under warnings as heat indices hit 120°F in Mississippi and Louisiana. NOAA ...

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

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

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 ...

We're in the middle of summer, and that means thermometers are working overtime around the country. It's normal to be warm ...

A major heat wave is heading to East Tennessee at the beginning of this week, and it’s not just uncomfortable; it can be extremely dangerous. Intense heat will grip our region from Monday through ...

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

With increased demand overwhelming the grid and climate change driving record heat, Americans' energy bills keep rising.

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

A relentless heat wave continued to bake most of the United States on Friday, with numerous areas expected to see record-breaking temperatures and forecasters warning there would likely be little ...

PHOENIX (AP) — Millions of people across the Southwest are living through a historic heat wave, with even the heat-experienced desert city of Phoenix being tested since temperatures have hit 110 ...

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.