Boonville Weather Forecast

    • 43
    • 70

    Mostly Sunny

    • 48
    • 78

    Mostly Sunny

    • 45
    • 75

    Mostly Sunny

    • 44
    • 68

    Mostly Sunny

    • 45
    • 70

    Mostly Sunny

    • 48
    • 80

    Mostly Sunny

    • 51
    • 85

    Mostly Sunny

Today 13 May Southwestern Mendocino Interior

Mostly cloudy then becoming partly cloudy late in the morning then becoming sunny. Highs 63 to 73.

Tonight 13 May Southwestern Mendocino Interior

Mostly clear. Lows 41 to 51.

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Boonville Temperature Statistics

May Temperature

Ukiah Municipal Airport (11.8 miles)

  • Lowest 8 May, 2026

    46.7 °F

  • Average May

    65.6 °F

  • Highest 11 May, 2026

    93 °F

Climate (2021–Present)

Ukiah Municipal Airport (11.8 miles)

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  • Average Low 2021–2026

    47.2 °F

  • Average 2021–2026

    61 °F

  • Average High 2021–2026

    76.3 °F
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