Arnold Weather Forecast

    • 49
    • 61

    Rain

    • 43
    • 65

    Chance Rain

    • 44
    • 71

    Mostly Cloudy

    • 46
    • 74

    Mostly Cloudy

    • 45
    • 73

    Mostly Cloudy

    • 47
    • 72

    Chance Rain

Today 6 Nov Northwestern Mendocino Interior

Mostly cloudy. Chance of rain. Highs 55 to 66.

Tonight 6 Nov Northwestern Mendocino Interior

Rain in the Evening, then chance of rain overnight. Lows 44 to 54.

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Arnold Temperature Statistics

November Temperature

Ukiah Municipal Airport (28.6 miles)

  • Lowest 1 November, 2025

    43 °F

  • Average November

    58.9 °F

  • Highest 2 November, 2025

    79 °F

Climate (2020–Present)

Ukiah Municipal Airport (28.6 miles)

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  • Average Low 2020–2025

    46.8 °F

  • Average 2020–2025

    60.6 °F

  • Average High 2020–2025

    76 °F
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