Potter Valley Weather Forecast

    • 48
    • 89

    Mostly Sunny

    • 48
    • 88

    Mostly Sunny

    • 51
    • 91

    Mostly Sunny

    • 47
    • 88

    Partly Sunny

    • 45
    • 80

    Mostly Sunny

    • 44
    • 82

    Mostly Sunny

    • 45
    • 82

    Mostly Sunny

Today 21 Sep Northwestern Interior Mendocino

Mostly clear. Lows 43 to 53. Highs 74 to 89.

Tonight 21 Sep Northwestern Interior Mendocino

Partly cloudy then becoming mostly cloudy late in the evening then becoming mostly clear. Patchy valley fog overnight. Lows 46 to 56.

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Potter Valley Temperature Statistics

September Temperature

Ukiah Municipal Airport (13.7 miles)

  • Lowest 6 September, 2026

    45.6 °F

  • Average September

    68.4 °F

  • Highest 10 September, 2026

    100.7 °F

Climate (2021–2026)

Ukiah Municipal Airport (13.7 miles)

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  • Average Low 2021–2026

    47.1 °F

  • Average 2021–2026

    61 °F

  • Average High 2021–2026

    76.1 °F
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