Mission Valley Weather Forecast

    • 69
    • 97

    Hot

    • 70
    • 96

    Mostly Sunny

    • 71
    • 96

    Partly Sunny

    • 72
    • 95

    Slight Chance Thunderstorms

    • 72
    • 93

    Slight Chance Thunderstorms

    • 71
    • 91

    Chance Rain Showers

    • 72
    • 91

    Chance Thunderstorms

Today 19 Sep Tucson Metro Area including Tucson/Green Valley/Marana/Vail

Partly cloudy with a 10 percent chance of Showers and Thunderstorms. Highs 88 to 94.

Tonight 19 Sep Tucson Metro Area including Tucson/Green Valley/Marana/Vail

Mostly clear. Lows 67 to 72. West wind 5 to 10 Mph becoming south after midnight.

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Mission Valley Temperature Statistics

September Temperature

Tucson, Tucson International Airport (3.7 miles)

  • Lowest 17 September, 2026

    69.1 °F

  • Average September

    85.8 °F

  • Highest 10 September, 2026

    101.6 °F

Climate (2021–2026)

Tucson, Tucson International Airport (3.7 miles)

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  • Average Low 2021–2026

    59.3 °F

  • Average 2021–2026

    72.5 °F

  • Average High 2021–2026

    86.4 °F
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