Boonville Airport Weather Forecast

    • 50
    • 82

    Mostly Cloudy

    • 49
    • 85

    Areas Fog

    • 48
    • 83

    Mostly Sunny

    • 52
    • 87

    Partly Sunny

    • 52
    • 90

    Partly Sunny

    • 50
    • 81

    Partly Sunny

Today 20 Sep Southwestern Interior Mendocino

Mostly cloudy. Patchy valley fog in the morning. Highs 71 to 86.

Tonight 20 Sep Southwestern Interior Mendocino

Mostly cloudy. Patchy valley fog. Lows 48 to 58.

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Boonville Airport Temperature Statistics

September Temperature

Ukiah Municipal Airport (12.4 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 (12.4 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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