Clearlake Weather Forecast

    • 61
    • 98

    Hot

    • 61
    • 96

    Partly Sunny

    • 56
    • 92

    Partly Sunny

    • 56
    • 90

    Mostly Sunny

    • 57
    • 92

    Mostly Sunny

    • 56
    • 90

    Mostly Sunny

Today 19 Aug Eastern Lake

Partly cloudy early in the morning then clearing. Highs 91 to 101. Northeast wind around 5 Mph shifting to the south in the afternoon.

Tonight 19 Aug Eastern Lake

Mostly clear. Lows 60 to 70. West wind around 10 Mph.

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Clearlake Temperature Statistics

August Temperature

Ukiah Municipal Airport (32.9 miles)

  • Lowest 15 August, 2026

    53.7 °F

  • Average August

    77.9 °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

    76.1 °F
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