Clearlake Weather Forecast

    • 48
    • 88

    Increasing Clouds

    • 47
    • 75

    Partly Sunny

    • 50
    • 76

    Partly Sunny

    • 49
    • 75

    Slight Chance Rain

    • 47
    • 78

    Mostly Sunny

    • 49
    • 82

    Mostly Sunny

Today 31 Aug Eastern Lake

Sunny. Highs 81 to 91. Southeast wind 5 to 15 Mph.

Tonight 31 Aug Eastern Lake

Mostly clear. Lows 46 to 56. West wind 5 to 15 Mph.

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Clearlake Temperature Statistics

August Temperature

Ukiah Municipal Airport (32.9 miles)

  • Lowest 26 August, 2026

    50.6 °F

  • Average August

    76.9 °F

  • Highest 8 August, 2026

    108.6 °F

Climate (2021–2026)

Ukiah Municipal Airport (32.9 miles)

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  • Average Low 2021–2026

    47.1 °F

  • Average 2021–2026

    61 °F

  • Average High 2021–2026

    76.2 °F
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