Amid a scorching heat wave, Phoenix firefighters are responding to heat-related emergency calls, especially among people ...

The Phoenix Fire Department has handled more than 130 heat-related calls since May 1, using cold water immersion treatments ...

An unbearable heat wave gripping much of the southwestern United States is expected to peak Thursday, Aug. 7, as temperatures climb well over triple digits.

It's going to be a hot one! Record highs are expected on Wednesday in the Valley. An Extreme Heat Warning remains in effect.

Due to extreme heat, the Arizona Animal Welfare League temporarily closed its doors to adoptions, as its kennel buildings ...

Phoenix is facing an intense heatwave, with temperatures predicted to rise up to 111°F and potentially hitting 116°F later in ...

PHOENIX — A historic heat wave continues to stifle Phoenix — but the end may finally be in sight for residents of Arizona’s largest city. The National Weather Service is forecasting a high ...

If a five-day heat wave and a blackout power outage hit Phoenix at the same time, nearly 817,000 people — more than 50% of the city's current population of 1.4 million — could end up in the ...

Phoenix’s heat wave has both long and short-term causes, said Arizona State University’s Randy Cerveny, who coordinates weather record verification for the World Meteorological Organization.

In the wake of the hottest August day ever recorded in Phoenix, an ongoing extreme heat warning has been extended through the ...