Millions of California residents are being warned to avoid sun exposure as an extreme heat wave is expected for much of the ...

An extreme heat watch has been issued for parts of southern Nevada and eastern California later this week as the region ...

Scientists say 4 billion people experienced at least one extra month of extreme heat because of human-caused climate change ...

Fire officials foresee an elevated chance of blazes across much of California from June through August. And cool coastal areas may not be spared.

An Extreme Heat Warning is in effect from 9 a.m. Friday until 11 p.m. Saturday as highs hit 104° and Southern Nevada sees its first "major" heat risk of the year.

Delta is the focus of a heat advisory issued at 12:17 p.m. on Thursday by the National Weather Service. The advisory is valid ...

WASHINGTON (AP) — Get ready for several years of even more record-breaking heat that pushes Earth to more deadly, fiery and ...

The sun's corona—the outermost layer of its atmosphere, visible only during a total solar eclipse—has long intrigued ...

The next time you see the UV index in the weather forecast, look more closely. You can protect yourself from too much sun.

Irish tourists heading to Spain are being urged to take extreme caution as a dangerous heatwave brings temperatures of up to ...

Spain's meteorological agency AEMET has issued Status Orange weather warnings for several inland regions as the country ...