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

As mercury hits sweltering 46C in places, people urged to stay indoors, stay cool and hydrated, protect young children and ...

Millions of Americans are under heat alerts Monday as a heat wave brings triple-digit temperatures or heat indices to nearly ...

Sweltering and "dangerous" heat with indices surpassing 100 degrees Fahrenheit across parts of nine states has prompted the ...

A dangerous heatwave is sweeping the U.S., with temperatures in the upper 90s to low 100s and heat index values above 110°F.

Dangerous heat continues this afternoon; record temps have fallen today with inland highs soaring into the upper nineties. A ...

Today is our fifth straight day with heat alerts for the entire area. It’s also our first day of the heat wave with some ...

The affected areas include much of the southeastern coast, the midwest, the eastern US corridor stretching from Boston to ...

More than 99 million Americans are under heat alerts as temperatures soar and overnight lows offer little relief, putting vulnerable groups at significant risk.

The prolonged period of heat and humidity will continue into early next week, with highs in the middle 90s and heat indices ...

Get ready for an intense day of heat and potential severe thunderstorms on Thursday, with heat indices expected to reach near ...

At 12:01 p.m. on Saturday, the National Weather Service issued a heat advisory valid for Sunday between 11 a.m. and 9 p.m.