The hottest temperatures will start in the Great Plains, then move to the Midwest, the Great Lakes, and the East Coast ...

Leftover showers and storms Sunday morning will give way to developing sunshine along with summer heat and higher humidity. Some areas in southern New Hampshire could reach 90 degrees on Sunday, and ...

The Milwaukee-Sullivan National Weather Service has issued an extreme heat warning from noon on Friday, June 21 to 7 p.m. on Monday, June 23.

Hundreds of people working or playing outside – even those who seem healthy – succumb to heat-related illnesses each year.