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

A dangerous heat wave continues across a large part of the United States, with more than 130 million people under extreme ...

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

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

▪ The National Weather Service in Miami will issue a heat advisory if the heat index is 105 degrees for at least a couple of ...

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

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.

If you have beach plans today, prepare for the heat and the extreme UV index. Heat index values will be over 110-115 degrees during the afternoon. Wave heights will be around 2 to 3 feet with a low ...

Madison County is set to see a 112 heat index on Tuesday, which increases chances for illnesses like heat cramps, heat ...

How low should you set your thermostat for as record-breaking heat sweeps over the country? Here's what experts and other ...

An Extreme Heat Warning is in effect for our Hump Day. This means that heat index values could climb OVER 110 degrees.