Philadelphia is under an extreme heat warning with heat index values up to 105 degrees, advising residents to stay cool and ...

The National Weather Service has issued extreme heat warnings and heat advisories for large swathes of the South, Midwest and Northeast.

Extreme Heat Warning remains in effect until 8 p.m. with heat indices reaching up to 105 degrees, following two consecutive ...

For Wednesday, the National Weather Service has issued an extreme heat warning for several counties, with heat advisories in effect until 8 p.m. The warning covers an area that includes Franklin, ...

Pittsburgh faces summer heat, heat advisory, and potential thunderstorms according to National Weather Service.

At least eight states were expected to see temperatures that would feel hotter than those in Death Valley—often referred to as the hottest place on Earth—on Wednesday, according to the National ...

Extensive triple digit heat, broken temperature records and oppressive humidity piled up into a steaming mess as the heat dome crushing the Eastern half of the nation sizzled to what should be its ...