Round Valley Airport Weather Forecast

    • 47
    • 83

    Mostly Sunny

    • 48
    • 87

    Sunny

    • 52
    • 95

    Sunny

    • 52
    • 93

    Mostly Sunny

    • 52
    • 91

    Mostly Sunny

    • 53
    • 92

    Mostly Sunny

Today 28 Sep Northeastern Interior Mendocino

Sunny. Highs 75 to 90.

Tonight 28 Sep Northeastern Interior Mendocino

Mostly clear. Lows 47 to 57.

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Round Valley Airport Temperature Statistics

September Temperature

Ukiah Municipal Airport (45.4 miles)

  • Lowest 6 September, 2026

    45.6 °F

  • Average September

    69 °F

  • Highest 10 September, 2026

    100.7 °F

Climate (2021–2026)

Ukiah Municipal Airport (45.4 miles)

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  • Average Low 2021–2026

    47.1 °F

  • Average 2021–2026

    61 °F

  • Average High 2021–2026

    76 °F
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