The western United States experienced a severe snow drought this year, threatening the region's water supply and potentially ...

Fire officials across Arizona are warning that record heat could accelerate the wildfire threat, and they're already working ...

Arizona law shields electric utilities from most lawsuits if their equipment sparks a catastrophic wildfire; Insurers and trial lawyers criticize the law’s wildfire ...

Parts of California and Arizona are under extreme heat warnings again Saturday while sweltering summerlike weather stretched as far north as Nebraska — just a day into spring.

Arizona heatwave shatters records as temperatures soar to highest ever in March - Thursday saw a staggering 43.3C (110F) recorded in the Arizona desert, obliterating the highest March temperature ever ...

Wildfire liability plans mandated by the state that are rolling out are being panned by critics who say they will leave homeowners and other Arizonans on the hook if they ...

Metro Phoenix is getting a hot start to spring. Is there still a chance for showers and cool days? Here's what weather experts forecast for spring.

Scientists say a record-smashing March heat wave in the U.S. Southwest shows climate change is already driving more dangerous ...

A recording-setting heat dome is expanding east, sending temperatures up to 30 degrees above normal for late-March.

Federal spending on water infrastructure in Arizona and the rest of the Colorado River basin has gone down sharply under the Trump administration, and big companies are making relatively small, ...