An extreme heat warning is still in effect in the Philly area until tomorrow night and today the temperature reached 100 degrees! Here's what you need to know.

NEW YORK (AP) — Extensive triple digit heat, broken temperature records and oppressive humidity piled up into a steaming mess ...

Heat waves like this one can put people at risk of heat exhaustion or the even more serious condition of heat stroke.

The sprawling June heat wave that has gripped much of the U.S. has people looking for relief in public fountains, inflatable ...

More than 150 million people in the eastern U.S. are under heat alerts as of early Tuesday - including about 75 million under ...

Substitutes who watch from the locker room, abandoned practice sessions and sweat-soaked jerseys. A heat wave hitting a wide ...

Extreme heat warnings and heat advisories remained in place all the way from St. Louis to Boston on June 24, the National Weather Service said. Other cities enduring these alerts include Chicago, ...

Tuesday’s heat came on top of 39 new or tied heat records Monday. But just as dangerous as triple-digit heat is the lack of ...

During a heat wave, it is crucial for people to cool down at night to reduce their core body temperature and reduce the ...

An extreme heat warning will remain in effect through Wednesday before temperatures cool off a little toward the end of the ...

A massive heat dome fueling the first major heat wave of the summer brought record-breaking temperatures to cities across the ...

Temps are soaring in cities across the Atlantic coast, where some cities are reaching 100 degrees with heat indexes ...