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

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.

Energy usage records have been set numerous times this summer, a trend that reflects the state's rapidly increasing energy ...

Phoenix is experiencing record-breaking, prolonged extreme heat driven by climate change, pushing the city into uncharted ...

A high-pressure system is expected to remain over Arizona for several days, leading to extreme and potentially record-breaking heat.

According to the National Weather Service, an Excessive Heat Warning remains in effect through Friday at 8 p.m., covering ...

Arizona's summer heat can be dangerous for some of its more vulnerable residents, with one type of home accounting for 25% of ...