Just in time for summer, here comes the heat. "A dangerous, widespread heat wave will bake the central and eastern U.S., bringing the hottest temperatures of the year and uncomfortably muggy air to ...

OK. One of the times I went running this week in our nation's capital, it was early in the morning but already 82 degrees and 82% humidity. Washington, D.C., has had daytime temperatures over 100 this ...

California is forecast to begin August the same way July ended: mild, at least relative to recent summers. But that cooler-than-normal weather isn't expected to stick around. A high-pressure system, ...

The longest, most intense heat wave since the summer solstice settled into its prime on Thursday, and weather forecasters said it was more impressive than first anticipated. That much was apparent as ...

The season’s most dangerous heat wave so far is expected to hit Southern California this week. Extreme heat and fire weather advisories have been issued beginning Wednesday, set to last for several ...

A dangerous and prolonged heat wave is set to impact central Pennsylvania, with heat index values potentially reaching 105 degrees and an Extreme Heat Warning in effect for several counties through ...

Chicagoland will continue to be gripped by a dangerous heat wave through Sunday night and Monday. The entire area will see intense sunshine, high humidity and possible record-high temperatures in the ...