A dangerous, record-breaking heat wave will spread over the eastern United States and is expected to last several days.

Over 140 million Americans will be under the highest-level extreme heat alerts by Sunday during a wave of above-average ...

More than 37 million Americans are under heat advisories across the U.S., according to the National Weather Service. Here's ...

A potentially record-breaking heat wave is pushing to the East, impacting millions of Americans in several states and cities.

The first heat wave of summer could bring punishing humidity and triple-digit temperatures to many states east of the Rocky ...

June 20 marks the first official day of summer, with millions of Americans already under heat warnings. See cities hotter ...

The first big heat wave of 2025 has arrived, coinciding with the official start of summer. More than 40 million people in the ...

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

A heat wave will bring the highest temperatures of the year so far, with some areas possibly reaching triple digits, ...

A surging heat wave will be a shock for millions in the central and eastern United States with the highest temperatures since ...

By the weekend, large swaths of Britain are expected to tip officially into a heat wave, with temperatures surging well above ...