Mount Lemmon Weather Forecast

    • 58
    • 71

    Rain Showers Likely

    • 56
    • 68

    Thunderstorms Likely

    • 57
    • 67

    Thunderstorms Likely

    • 59
    • 70

    Slight Chance Thunderstorms

    • 61
    • 73

    Slight Chance Thunderstorms

    • 61
    • 75

    Slight Chance Thunderstorms

Today 11 Aug Santa Catalina and Rincon Mountains including Mount Lemmon/Summerhaven

Partly cloudy. A 30 percent chance of Showers and Thunderstorms in the afternoon. Some Thunderstorms may produce heavy rainfall in the afternoon. Highs 75 to 85.

Tonight 11 Aug Santa Catalina and Rincon Mountains including Mount Lemmon/Summerhaven

Showers likely and chance of Thunderstorms in the Evening, then chance of Showers and slight chance of Thunderstorms after midnight. Some Thunderstorms may produce heavy rainfall in the evening. Lows 61 to 67. Chance of precipitation 60 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mount Lemmon Temperature Statistics

August Temperature

Davis-Monthan Air Force Base (19.9 miles)

  • Lowest 6 August, 2026

    75 °F

  • Average August

    93.2 °F

  • Highest 1 August, 2026

    109.8 °F

Climate (2021–2026)

Davis-Monthan Air Force Base (19.9 miles)

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  • Average Low 2021–2026

    58.4 °F

  • Average 2021–2026

    71.1 °F

  • Average High 2021–2026

    84.1 °F
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