Keystone Peak Weather Forecast

    • 70
    • 82

    Chance Thunderstorms

    • 66
    • 77

    Thunderstorms Likely

    • 66
    • 74

    Thunderstorms Likely

    • 67
    • 75

    Chance Thunderstorms

    • 67
    • 77

    Chance Thunderstorms

    • 67
    • 77

    Chance Thunderstorms

    • 67
    • 78

    Chance Thunderstorms

Today 15 Jul Upper Santa Cruz River and Altar Valleys including Nogales

Mostly cloudy with a 50 percent chance of Showers and Thunderstorms. Highs 90 to 96.

Tonight 15 Jul Upper Santa Cruz River and Altar Valleys including Nogales

Partly cloudy with chance of Showers and Thunderstorms in the Evening, then mostly cloudy with chance of Showers and slight chance of Thunderstorms after midnight. Lows 67 to 73. Chance of precipitation 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Keystone Peak Temperature Statistics

July Temperature

Tucson Ryan Field Airport (18 miles)

  • Lowest 3 July, 2026

    62.6 °F

  • Average July

    94.7 °F

  • Highest 7 July, 2026

    109.4 °F

Climate (2021–2026)

Tucson Ryan Field Airport (18 miles)

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  • Average Low 2021–2026

    56.8 °F

  • Average 2021–2026

    73.9 °F

  • Average High 2021–2026

    84.4 °F
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