The National Weather Service sent out millions of extreme heat warnings, heat watches and heat advisory alerts early Monday ...

Severe thunderstorms could continue into July 29, bringing havoc to morning commutes in Chicago, Milwaukee and Indianapolis.

"For people without effective cooling, especially heat-sensitive groups, this level of heat can be deadly." the NWS said.

The National Weather Service has warned of "searing heat and oppressive humidity that occurs during the 'dog days of summer'.

Death Valley is forecast to see heat index values peak at 101 Friday—swaths of the country are bracing for even warmer ...

In Texas, animals are likely splooting early thanks to the heat wave taking over Texas. The National Weather Service said the early-season heat wave is developing this week in South Central Texas ...

Heat advisories are in effect from Texas to New Hampshire as dangerous temperatures grip the eastern half of the U.S.