Humidity doesn’t just make you feel sticky and uncomfortable – it also creates extra dangerous conditions on hot days.

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

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

A huge chunk of Florida, including Marion County, is under an extreme heat warning July 29 as temperatures and the heat index ...

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

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

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

With extreme heat warnings in effect across major U.S. cities, officials urge residents to prioritize safety and hydration ...

If you are living in one of many areas of the U.S. currently experiencing a heat wave, your outdoor thermometer may say it's ...

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

Dangerously hot conditions, with heat index values locally higher than 110 degrees, are expected. A Weather Impact Alert ...

Residents in the Southeast U.S. are no strangers to heat in the summertime But this week’s sweltering hot weather set at ...