In the Southwest, cities including Las Vegas and Phoenix are under extreme heat warnings, with temperatures expected to climb ...

A fourth heat wave of the summer is in the forecast as temperatures surge into the 90s across New Hampshire this week.

Those scattered showers and storms could bring in cooler air, with highs expected to settle into the 80s for Thursday and Friday. >> Subscribe to WMUR's YouT ...

Due to the extreme heat and humidity expected, the NWS has issued a hazardous weather outlook for the entire state, as well ...

Meteorologist Matt Hoenig says many New Hampshire towns will face a four-day heat wave with temperatures in the 90s through midweek.