Lake Mendocino Weather Forecast

    • 56
    • 93

    Sunny

    • 58
    • 95

    Mostly Sunny

    • 59
    • 94

    Partly Sunny

    • 59
    • 96

    Partly Sunny

    • 59
    • 95

    Mostly Sunny

    • 58
    • 93

    Mostly Sunny

Today 30 Sep Southeastern Interior Mendocino

Sunny. Highs 82 to 97.

Tonight 30 Sep Southeastern Interior Mendocino

Mostly clear. Lows 56 to 66.

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Lake Mendocino Temperature Statistics

September Temperature

Ukiah Municipal Airport (6.2 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 (6.2 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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