Flagstaff, Arizona – Widespread rain and thunderstorms are expected to return to Arizona late this weekend, potentially bringing slick roads and reduced visibility from Tucson to Flagstaff by Monday morning.
According to the National Weather Service in Flagstaff, an area of low pressure will move across the region early next week, drawing subtropical moisture northward starting Saturday. The system is expected to trigger scattered showers and thunderstorms beginning Sunday, continuing into Monday across central and southern Arizona.
The moisture plume will likely impact cities including Phoenix, Tucson, and Yuma, with heavier rainfall possible in southeastern counties. While exact totals remain uncertain, the setup could lead to brief downpours and localized flooding, especially in low-lying or recently burned areas.
Drivers are urged to use caution during early morning commutes Monday, when wet roadways and active storm cells may affect travel on I-10, I-17, and U.S. 60. Residents should also secure outdoor items and check weather alerts throughout the weekend.
This marks one of the earliest organized rain events of the season, and forecasters say additional updates are likely as the system develops. Rain chances will continue into Monday before tapering off late that evening.