NWS Phoenix

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Last Map Update: Fri, May 30, 2025 at 4:34:36 pm MST

Watches, Warnings & Advisories

National Weather Service NWS Flagstaff, AZ

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National Weather Service Albuquerque, NM

National Weather Service NWS Tucson Arizona

Extreme Heat Warning

Air Quality Alert

Hazardous Weather Outlook

Tropical Moisture Ahead

Unsettled Weather Late this Weekend

Rain Accumulation Probabilities

Temperature Outlook

A pattern shift this weekend will bring temperatures several degrees below normal with a surge of tropical moisture from the south resulting in increased rain chances, peaking on Sunday evening. There is still uncertainty surrounding exact rainfall amounts, but generally most areas can expect between 0.25-0.50" of rainfall across south-central Arizona and lower amounts across southwest Arizona and southeast California.

A weather disturbance will move into the Desert Southwest this weekend, resulting in increasing chances for showers and thunderstorms across the region, mainly on Sunday into Monday. Most areas are expected to see accumulating rainfall, with localized amounts exceeding one half inch in the heaviest downpours which could preclude a minor flooding threat.

Accumulating rains are expected to spread across the region late this weekend and into early next week. Most areas should see accumulations exceeding 0.10", with higher amounts exceeding 0.50" for higher terrain areas north of the Phoenix metro.

Near to slightly above normal temperatures can be expected through Saturday, with temperatures peaking on Friday. Temperatures will gradually cool off through the weekend into early next week. The high temperatures Friday and Saturday will result in a moderate HeatRisk (level 2) for the Phoenix Metro.