Longvale Weather Forecast

    • 45
    • 72

    Partly Sunny

    • 45
    • 74

    Mostly Sunny

    • 47
    • 79

    Sunny

    • 49
    • 83

    Partly Sunny

    • 50
    • 82

    Mostly Sunny

    • 51
    • 85

    Mostly Sunny

Today 16 Sep Northwestern Interior Mendocino

Sunny. Patchy valley fog in the morning. Highs 70 to 85.

Tonight 16 Sep Northwestern Interior Mendocino

Partly cloudy. Slight chance of Showers and Thunderstorms in the evening. Patchy valley fog overnight. Lows 44 to 54.

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Longvale Temperature Statistics

September Temperature

Ukiah Municipal Airport (31.7 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 (31.7 miles)

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  • Average Low 2021–2026

    47.1 °F

  • Average 2021–2026

    60.9 °F

  • Average High 2021–2026

    76.1 °F
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