Clearlake Weather Forecast

    • 59
    • 95

    Mostly Sunny

    • 60
    • 95

    Partly Sunny

    • 55
    • 91

    Partly Sunny

    • 54
    • 90

    Sunny

    • 52
    • 89

    Mostly Sunny

    • 49
    • 85

    Mostly Sunny

Today 26 Aug Eastern Lake

Sunny. Highs 88 to 99. Northwest wind around 5 Mph shifting to the southwest in the afternoon.

Tonight 26 Aug Eastern Lake

Partly cloudy. Lows 59 to 69. West wind up to 10 Mph.

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Clearlake Temperature Statistics

August Temperature

Ukiah Municipal Airport (32.9 miles)

  • Lowest 22 August, 2026

    52 °F

  • Average August

    77.5 °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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