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.

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

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

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 ...

Even as the heat dome begins to wane, portions of 20 states from the Ohio Valley to the Deep South and the Carolinas to southern New England remain under heat alerts on Wednesday. Temperatures in the ...

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.

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

A hospital visitor and a staffer both confirmed that the hospital air conditioning is not working properly. They say that on ...

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 ...