The scale would rate a storm based on the amount of dust in the air, as well as other components, researchers say.

Memorial Day weekend is still looking warm in the Valley, but a slight shift in the forecast could bring cooler temperatures and a few mountain showers to parts of Arizona.

AccuWeather's summer forecast is out, showing a pleasant surprise for Arizona. Here's what the weather experts predict for the monsoon and summer.

Thunder, hail, wind and rain rolled through downtown Phoenix on Jan. 8 as the second and colder wave of Arizona's storm systems moved across the state. The pair of midweek storm systems delivered a ...

Winds and dry conditions are driving up fire risk, leading to new restrictions across Arizona. Officials urge caution.

Mild and mostly sunny weather in the Phoenix Valley continues through Monday, with temperatures holding near 70 degrees. Light rain and snow are expected overnight and into Monday morning in Northern ...

Arizona is expected to see little impact from the winter storm, which is disrupting travel across much of the country on Jan. 25, with the strongest effects remaining east of the state. Dry air moving ...

PHOENIX - Sunday was a cloudier, mild day across Arizona. Temperatures climbed to 78 degrees in Phoenix, after only hitting 74 degrees on Saturday and 70 on Friday. The warm up ends here, and ...

The 2026 Atlantic hurricane season hasn’t started yet, but one of the country’s longest-running university forecast programs ...

A third winter storm is expected to bring 4 to 8 inches of snow to the Flagstaff area Thursday night, with up to a foot of accumulation possible over the San Francisco Peaks. Rain and snow showers ...