Clearlake Weather Forecast

    • 50
    • 71

    Rain Likely

    • 44
    • 66

    Rain Likely

    • 45
    • 74

    Mostly Sunny

    • 44
    • 75

    Mostly Sunny

    • 44
    • 73

    Partly Sunny

    • 43
    • 72

    Partly Sunny

Today 21 Oct Eastern Lake

Mostly cloudy. Chance of rain in the afternoon. Highs 65 to 75. Northwest wind around 10 Mph shifting to the south in the afternoon.

Tonight 21 Oct Eastern Lake

Mostly cloudy. Chance of rain in the Evening, then rain likely overnight. Patchy fog overnight. Lows 46 to 56. Southwest wind around 5 Mph.

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Clearlake Temperature Statistics

October Temperature

Ukiah Municipal Airport (32.9 miles)

  • Lowest 13 October, 2026

    38.6 °F

  • Average October

    69.5 °F

  • Highest 5 October, 2026

    102.7 °F

Climate (2021–2026)

Ukiah Municipal Airport (32.9 miles)

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  • Average Low 2021–2026

    47.1 °F

  • Average 2021–2026

    61.1 °F

  • Average High 2021–2026

    76.2 °F
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