By Tuesday night — following the fourth hottest day on record in Boston — Mass General’s emergency department was slammed.

The temperature in New York City has reached 100 degrees as the eastern U.S. sweltered under an extreme heat wave.

The first major heat wave of the summer will bring another day of dangerously high temperatures to the East Coast on ...

More than 125 million Americans were under the highest level of extreme heat alerts during a wave of above-average ...

When and where will the heat wane? Where does extreme heat remain? Large sections of the eastern half of the country still ...

This is no ordinary heat. All time records are within reach today, as this early season heat wave becomes official.

A van with 16 “elderly” passengers slammed into a building in Dorchester Wednesday afternoon, as several people were ...

Another warm day will arrive Wednesday with mostly sunshine for the day, and some isolated thunderstorms are possible by ...

The four-day heat wave in Boston was confirmed Wednesday, with temperatures returning to the mid-90s, falling short of setting another new daily high record, which is 97, set in 1943.

NEW YORK – A massive heat dome that sparked the first major heat wave of the summer brought record-breaking temperatures to ...

NEW YORK (AP) — A record-smashing heat wave broiled the U.S. East for another day Wednesday, even as thermometers were ...

Boston's current heat wave brings a high of 92 degrees with isolated storms, and a cool down expected by the weekend.