The NPS recommends avoiding hiking the Grand Canyon's inner trails between 10 a.m. and 4 p.m., when temperatures are at their ...

A hiker has died on the South Kaibab Trail in the Grand Canyon National Park while attempting to reach the Colorado River.

Big changes [are] coming ... as high pressure over Arizona expands west into Southern California,' the weather service warns.

In the South Bay, Morgan Hill is forecast to reach 95 on Thursday and 91 on Friday. In San Jose, the thermometer is expected ...

Most of Colorado is bracing for sizzling heat Wednesday afternoon as a heat dome sends temperatures into the triple digits ...

ATHENS, Greece (AP) — Authorities closed the Acropolis for several hours Tuesday due to high temperatures as work ...

Airplane cabin temperatures can dictate safety as well as comfort. Advocates say they need to be standardized.

A heat advisory will be in effect from 10 a.m. to 9 p.m. on Wednesday for Denver, Larimer, Weld, Boulder, Jefferson, ...

A 67-year-old hiker died Tuesday in the Grand Canyon, park officials said Wednesday as forecasters in the region warned of ...

On the coast and in the northeast part of the state, temperatures should remain at or below 80 on Wednesday — a welcome ...

Washingtonians face soaring mid-80s to low 90s temps next week. Stay informed with KING 5's First Alert updates and ...

Heat alert issued as temperatures hit 33C on linkedin (opens in a new window) ...