Arnold Weather Forecast

    • 37
    • 54

    Partly Sunny

    • 35
    • 62

    Mostly Sunny

    • 36
    • 64

    Mostly Sunny

    • 40
    • 64

    Partly Sunny

    • 36
    • 62

    Mostly Cloudy

    • 35
    • 62

    Partly Sunny

Today 20 Nov Northwestern Mendocino Interior

Mostly sunny. Slight chance of rain. Highs 47 to 59.

Tonight 20 Nov Northwestern Mendocino Interior

Partly cloudy. Patchy valley fog. Lows 33 to 43.

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Arnold Temperature Statistics

November Temperature

Ukiah Municipal Airport (28.6 miles)

  • Lowest 15 November, 2025

    42.1 °F

  • Average November

    56.7 °F

  • Highest 2 November, 2025

    79 °F

Climate (2020–Present)

Ukiah Municipal Airport (28.6 miles)

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  • Average Low 2020–2025

    46.9 °F

  • Average 2020–2025

    60.7 °F

  • Average High 2020–2025

    76 °F
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