The risks of heat are only growing thanks to lasting heat waves, extreme nighttime temperatures and unusual humidity, like ...

Almost 100 million Americans were under National Weather Service extreme heat warnings, advisories or watches on July 23 as a heat dome descened on a swath of the nation and slowly spread East.

"Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of ...

Extreme heat warnings are in effect for parts of Arkansas, Missouri, Illinois, Kentucky, Tennessee, Mississippi and Louisiana.

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All of Florida will be under heat advisories Monday, July 21, as a heat dome spreads from the Ohio and Mississippi valleys.

The combination of high temperatures and humidity is creating a significant health risk, and first responders are already seeing an increase in emergency calls.

Millions across the Midwest, South, and Northeast prepare for potential record-breaking temperatures this week as heat alerts are issued nationwide.

Whether it be heat exhaustion or heat stroke, quickly move the affected person to a cooler area and remove extra layers of clothing. Apply wet cloths or wet the skin with cool water. If someone is ...

The heat index could get as high as 111 in South Florida, with the strongest heat expected along the southern Gulf Coast.

Heat-related warnings from the National Weather Service (NWS) were in effect for parts of 11 states on Friday morning, with ...

As dangerous heat waves sweep the U.S., the CDC cautions against consuming caffeine. But not every expert is convinced the ...