Scottsdale officials advise hikers to adjust routines to avoid intense heat and offer a Desert Hiking First Aid course for ...

The three most difficult trails on South Mountain will close when the National Weather Service declares heat warnings from 8 a.m. to 5 p.m.

A proposal that would loosen restrictions on trails at South Mountain Park in Phoenix during extreme heat passed a major ...

Arizona's desert landscapes and constant sunshine attract thousands of retirees yearly, but many soon discover the reality ...

Sen. Ruben Gallego of Arizona is sponsoring a new bill to mitigate the impacts of extreme heat in urban areas across the U.S.

Pima County’s heat deaths have surged at an unprecedented rate over the past two years, coinciding with a sharp rise in ...

Arizona firefighters prepare for an intense wildfire season, training rigorously amidst record heat and rising fire risks.

It comes as no surprise that Phoenix has record-breaking heat. But just how many records have been broken? 12News finds out.

Record heat is expected on Tuesday in the Valley. We'll see a high of 99 degrees on Tuesday in Phoenix. Tuesday's high is ...