Millions and millions of Americans are being warned of "dangerous" heat in more than a dozen states as the summer 2025 season ...

Philadelphia faces dangerously high temperatures, with heat index values reaching 106°F, prompting a warning from the NWS.

The heat wave caused disruptions to public transport across the Northeast. Amtrak said it will be forced to slow train speeds between 12 p.m. and 8 p.m. on June 24 between Washington, D.C., and New ...

Extreme heat warnings are in effect across Arizona and Nevada, raising concerns for children's health. Heat advisories span ...

Heat alerts will be in effect across the Philadelphia region starting Sunday as Saturday kicks off a multi-day heat wave.

The Philadelphia area is bracing for a scorching heatwave that will see temperatures reach the triple digits with added ...

Philadelphia's National Weather Service issues heat advisory with high heat index values, advising precautions against ...

A heat advisory has been issued along the I-95 corridor for Thursday, with the heat index expected to reach 99 degrees.

The heat index will soar above 100 degrees early next week. Older adults, people with heart issues and those without A/C are ...

Heat indices, which measure how hot it really feels with factors like humidity considered, will top 100 degrees for multiple days, the weather service in Philadelphia warned. How to stay safe in ...