Clear Lake State Park Weather Forecast

    • 51
    • 65

    Chance Rain

    • 55
    • 64

    Rain

    • 49
    • 64

    Rain

    • 52
    • 68

    Mostly Sunny

    • 53
    • 72

    Mostly Sunny

    • 53
    • 73

    Mostly Sunny

    • 58
    • 79

    Mostly Sunny

Today 1 Sep Western Lake

Mostly cloudy. Slight chance of rain in the morning. Highs 63 to 73. West wind up to 10 Mph.

Tonight 1 Sep Western Lake

Partly cloudy early in the evening then becoming mostly cloudy. Chance of rain through the night. Lows 46 to 56. Southwest wind 5 to 15 Mph.

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Clear Lake State Park Temperature Statistics

September Temperature

Ukiah Municipal Airport (21.7 miles)

  • Lowest

  • Average September

  • Highest

Climate (2021–2026)

Ukiah Municipal Airport (21.7 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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