Arnold Weather Forecast

    • 50
    • 78

    Mostly Sunny

    • 56
    • 87

    Mostly Sunny

    • 51
    • 86

    Mostly Sunny

    • 50
    • 81

    Mostly Sunny

    • 56
    • 84

    Sunny

    • 60
    • 91

    Sunny

    • 59
    • 93

    Sunny

Today 5 Jul Northwestern Mendocino Interior

Sunny. Highs 74 to 89.

Tonight 5 Jul Northwestern Mendocino Interior

Mostly clear. Lows 48 to 58.

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Arnold Temperature Statistics

July Temperature

Ukiah Municipal Airport (28.6 miles)

  • Lowest 3 July, 2025

    59 °F

  • Average July

    76.3 °F

  • Highest 1 July, 2025

    98.1 °F

Climate (2020–Present)

Ukiah Municipal Airport (28.6 miles)

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  • Average Low 2020–2025

    46.8 °F

  • Average 2020–2025

    60.8 °F

  • Average High 2020–2025

    76.4 °F
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