Arnold Weather Forecast

    • 38
    • 69

    Sunny

    • 39
    • 71

    Sunny

    • 42
    • 69

    Partly Sunny

    • 38
    • 64

    Partly Sunny

    • 39
    • 62

    Mostly Cloudy

    • 38
    • 58

    Rain Likely

    • 31
    • 53

    Chance Rain/Snow

Today 3 Feb Northwestern Mendocino Interior

Sunny. Highs 65 to 75.

Tonight 3 Feb Northwestern Mendocino Interior

Mostly clear. Patchy valley fog in the evening. Lows 38 to 48.

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Arnold Temperature Statistics

February Temperature

Ukiah Municipal Airport (28.6 miles)

  • Lowest 1 February, 2026

    39.9 °F

  • Average February

    50.5 °F

  • Highest 1 February, 2026

    66.9 °F

Climate (2021–Present)

Ukiah Municipal Airport (28.6 miles)

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  • Average Low 2021–2026

    47 °F

  • Average 2021–2026

    60.8 °F

  • Average High 2021–2026

    76.1 °F
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