Last year capped a string of historically hot years, driven by long-term warming and changes in rain patterns.

Arizona is in store for an outstanding week of weather.  Here in the valley and up north will experience predominantly sunny, ...

PHOENIX - Thursday was an unseasonably warm day across Arizona. Temperatures climbed to 79 degrees in Phoenix, just two ...

The BriefWe are expecting warm conditions today for the Valley, with a forecast high of 78°F.Gusty winds are expected through ...

Phoenix hit 78 degrees Friday, kicking off a warm holiday weekend with temperatures nearly 10 degrees above average. Sunny ...

New research from the University of Arizona reveals that climate change has already reduced U.S. income by about 12 percent.

Arizona is mostly known for its hot summers and desert terrain. But during the winter, parts of the state stand out, ranking ...

Warmer temperatures are arriving in the Valley, with highs reaching the upper 70s—nearly 10 degrees above average—by the end ...

The first low pressure system will move over southern Arizona as it slides up from the southwest. It will bring rain showers, ...

A pair of winter storms is set to sweep across Arizona starting Wednesday, bringing widespread Valley rain and heavy mountain snow through the end of the week.

Arizona climate leaders and Republic climate reporter Joan Meiners shared book recommendations to provide hope and perspective for 2026. Picks from climate leaders included "The Ministry for the ...