Keystone Peak Weather Forecast

    • 72
    • 91

    Mostly Sunny

    • 70
    • 92

    Mostly Sunny

    • 72
    • 91

    Mostly Sunny

    • 70
    • 93

    Chance Thunderstorms

    • 73
    • 94

    Chance Thunderstorms

    • 72
    • 94

    Slight Chance Thunderstorms

Today 2 Aug Upper Santa Cruz River and Altar Valleys including Nogales

Partly cloudy in the Morning, then a 10 percent chance of Thunderstorms in the afternoon. Highs 98 to 104.

Tonight 2 Aug Upper Santa Cruz River and Altar Valleys including Nogales

Mostly clear. A 10 percent chance of Thunderstorms in the evening. Lows 67 to 73.

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Keystone Peak Temperature Statistics

August Temperature

Tucson Ryan Field Airport (18 miles)

  • Lowest

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  • Average August

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Climate (2020–Present)

Tucson Ryan Field Airport (18 miles)

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  • Average Low 2020–2025

    56.3 °F

  • Average 2020–2025

    73.6 °F

  • Average High 2020–2025

    84.1 °F
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