Pittsburgh faces Extreme Heat Warning with index values above 100F, and a potential for record highs and severe weather.

Baltimore is bracing for a severe heatwave, with temperatures potentially reaching 100 degrees, as forecasted by the National ...

Extreme heat warnings and heat advisories have been issued for all of New Jersey on Monday and Tuesday, the two hottest days ...

The National Weather Service called the forecast for above-average temperatures "the first significant heat wave this season.

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