Williams Lake Weather Forecast

    • 64
    • 88

    Chance Thunderstorms

    • 47
    • 80

    Sunny

    • 63
    • 86

    Mostly Sunny

    • 58
    • 87

    Mostly Sunny

    • 53
    • 81

    Mostly Sunny

    • 64
    • 83

    Mostly Sunny

    • 60
    • 85

    Chance Thunderstorms

Today 18 Oct San Jacinto

Partly sunny. A slight chance of Showers and Thunderstorms Early, then a chance of Showers and Thunderstorms. Near steady temperature in the mid 80s. South Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 50 percent.

Tonight 18 Oct San Jacinto

Partly cloudy with a chance of Thunderstorms. A chance of Showers. Locally heavy rainfall possible after midnight. Lows in the mid 60s. South Winds around 5 Mph, becoming west after midnight. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Williams Lake Temperature Statistics

October Temperature

Cleveland (12.4 miles)

  • Lowest 11 October, 2025

    55.8 °F

  • Average October

    73.9 °F

  • Highest 7 October, 2025

    93 °F

Climate (2020–Present)

Cleveland (12.4 miles)

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  • Average Low 2020–2025

    60.4 °F

  • Average 2020–2025

    69.9 °F

  • Average High 2020–2025

    81.5 °F
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