Mount Lemmon Ski Valley Weather Forecast

    • 59
    • 71

    Chance Thunderstorms

    • 60
    • 72

    Chance Thunderstorms

    • 57
    • 71

    Rain Showers Likely

    • 57
    • 69

    Chance Thunderstorms

    • 57
    • 69

    Chance Thunderstorms

    • 58
    • 71

    Chance Thunderstorms

Today 12 Sep Santa Catalina and Rincon Mountains including Mount Lemmon/Summerhaven

Mostly cloudy with a 40 percent chance of Showers and Thunderstorms. Highs 74 to 82.

Tonight 12 Sep Santa Catalina and Rincon Mountains including Mount Lemmon/Summerhaven

Mostly cloudy with a 10 percent chance of Showers and Thunderstorms in the Evening, then partly cloudy after midnight. Lows 63 to 69.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mount Lemmon Ski Valley Temperature Statistics

September Temperature

Davis-Monthan Air Force Base (20.5 miles)

  • Lowest 1 September, 2026

    70.3 °F

  • Average September

    86.1 °F

  • Highest 10 September, 2026

    100.2 °F

Climate (2021–2026)

Davis-Monthan Air Force Base (20.5 miles)

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  • Average Low 2021–2026

    58.4 °F

  • Average 2021–2026

    71.1 °F

  • Average High 2021–2026

    84.2 °F
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