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

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 heat is no joke and this year, it's impacting a large portion of the U.S. Here's what to know about heat stroke, ...

Little relief from the heat is in sight for the Louisville area, as heat index values are expected to surpass 100 degrees for ...

On Monday at 2:12 p.m. a heat advisory was issued by the National Weather Service valid for Tuesday between 10 a.m. and 8 p.m ...

For the first time ever, parts of Alaska will be under a heat advisory — but you can put an asterisk at the end of that term.

It’s not the first instance of unusually high temperatures in Alaska, but using the heat advisory label could help convey the ...

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

Nearly 170 million people across 28 states are under various heat alerts, the federal agency says. “High temperatures in the ...

On Monday at 2:18 p.m. a heat advisory was released by the NWS Wilmington NC valid from Tuesday 10 a.m. until Wednesday 8 p.m ...

Summertime has arrived in the Tri-State and, to borrow a line from Nuke LaLoosh: It is announcing its presence with authority ...

The National Weather Service issued an extreme heat warning for New Castle County lasting through June 25. See how hot ...