Phoenix is set to experience fluctuating weather patterns next week, with holiday mountain rain chances and a cooling trend on the horizon, according to a report by AZFamily on May 23, 2026.
Afternoon high temperatures in Phoenix reached 99 degrees on Saturday, slightly above the seasonal average of 97 degrees.
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Clear conditions are expected to continue through the evening, with overnight lows dropping into the mid-70s.
A brief period of light showers may develop over higher terrain southeast of Phoenix between Sunday evening and early Monday morning.
Valley temperatures are projected to peak between 99 and 100 degrees on Sunday before easing to 98 degrees on Monday for Memorial Day.
Rain and Cooler Conditions Ahead
Northern and southeastern Arizona face a 50 to 60 percent chance of scattered showers and thunderstorms on Monday.
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The High Country weather system is expected to impact areas around Flagstaff and the White Mountains, potentially creating lingering storms into Monday evening that could affect holiday commuters.
Mostly sunny skies will return to the Valley on Tuesday, accompanied by highs in the mid to upper 90s.
Increased winds are forecast for Wednesday as temperatures drop to 95 degrees.
Even cooler conditions in the low 90s are expected for Thursday and Friday before rebounding to 97 degrees on Saturday.
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Meteorologists forecast fluctuating holiday temperatures and potential rain across Arizona, bringing cooler conditions to Phoenix next week.
