Twentymile Slough Weather Forecast

    • 38
    • 70

    Sunny

    • 41
    • 72

    Mostly Sunny

    • 39
    • 68

    Partly Sunny

    • 34
    • 63

    Chance Rain

    • 28
    • 53

    Chance Rain

    • 31
    • 53

    Chance Rain/Snow

    • 30
    • 51

    Slight Chance Rain

Today 7 Oct Central and Eastern Lake County

Sunny. Highs in the mid 60s to lower 70s. Southeast Winds 5 to 10 Mph.

Tonight 7 Oct Central and Eastern Lake County

Clear. Lows in the mid 30s to lower 40s. South Winds 5 to 10 Mph.

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  • Temperature Real-Time

Twentymile Slough Temperature Statistics

October Temperature

Lake County Airport (29.2 miles)

  • Lowest 4 October, 2025

    34 °F

  • Average October

    49.6 °F

  • Highest 1 October, 2025

    63 °F

Climate (2020–Present)

Lake County Airport (29.2 miles)

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  • Average Low 2020–2025

    33.5 °F

  • Average 2020–2025

    48.3 °F

  • Average High 2020–2025

    61.1 °F
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