Weather
Phoenix, AZ Weather: 80% Rain Chance Wednesday, Storms Possible Oct 21
Phoenix, AZ – Residents across the Phoenix metropolitan area face a significant weather change this week as temperatures approach 91 degrees before widespread rain chances and possible thunderstorms a
By Nolan Pierce · 2026-10-19T10:03:20.815Z
Phoenix, AZ – Residents across the Phoenix metropolitan area face a significant weather change this week as temperatures approach 91 degrees before widespread rain chances and possible thunderstorms arrive. Precipitation probabilities reach 80% Wednesday and Wednesday night, followed by a noticeable cooldown heading into the weekend.
According to the National Weather Service in Phoenix, showers could begin Tuesday night, with thunderstorms possible after 11 p.m. The forecast calls for several periods of unsettled weather through Thursday before sunshine returns Friday.
Phoenix faces 80% rain chance Wednesday Monday brings mostly sunny skies and a high near 88 degrees, followed by mostly clear conditions overnight.
Tuesday is expected to be the warmest day, with temperatures reaching approximately 91 degrees.
Conditions begin changing Tuesday night, when showers become likely and a thunderstorm is possible after 11 p.m. The precipitation probability reaches 60%, with overnight temperatures near 73 degrees.
Wednesday brings showers and possible thunderstorms, with an 80% chance of precipitation and a high near 85 degrees.
Rain chances remain at 80% Wednesday night, with rainfall amounts between one quarter and one half inch possible.
Thursday continues the unsettled pattern, with a 60% chance of showers and possible thunderstorms. Temperatures are forecast to reach approximately 80 degrees.
Temperatures could drop 15 degrees by Friday Friday brings sunshine and a high near 76 degrees, representing a 15 degree decline from Tuesday's forecast high.
Saturday remains sunny, with a high near 79 degrees, followed by approximately 82 degrees Sunday.
For residents across Phoenix and surrounding Maricopa County communities, the changing conditions could affect outdoor activities and commuting, particularly during Wednesday's expected rainfall.
Although thunderstorms are possible, the supplied forecast does not establish severe weather warnings or specific flooding threats.
Residents should monitor National Weather Service updates as storm timing and rainfall expectations become clearer.