Extreme heat is impacting states across the country. See maps of high temperature forecasts and heat index levels.

The National Weather Service released an updated heat advisory at 11:03 a.m. on Monday in effect until Tuesday at 8 p.m. for ...

The National Weather Service released a heat advisory at 4:34 p.m. on Monday valid from Tuesday noon until Wednesday 7 p.m.

The National Weather Service issued an updated heat advisory at 8:10 p.m. on Monday in effect until Wednesday at 8 p.m. for ...

Seniors and those with chronic health problems or mental health conditions are at an increased risk, the National Weather ...

On Monday at 12:59 p.m. the National Weather Service issued a heat advisory in effect until Wednesday at 8 p.m. for Southern ...

The National Weather Service released a heat advisory at 10:34 a.m. on Monday valid from Tuesday noon until Wednesday 7 p.m.

The National Weather Service office in Fairbanks, Alaska, has issued a heat advisory for Sunday. This is the first of its ...