Ralston Lake Weather Forecast

    • 56
    • 76

    Chance Thunderstorms

    • 57
    • 84

    Mostly Sunny

    • 56
    • 83

    Mostly Sunny

    • 57
    • 84

    Mostly Sunny

    • 57
    • 84

    Partly Sunny

    • 58
    • 81

    Partly Sunny

Today 13 Sep Oceana

Mostly sunny with a 20 percent chance of Showers. Highs in the mid 70s. South Winds 5 to 10 Mph.

Tonight 13 Sep Oceana

Mostly clear. Lows in the upper 50s. Light Winds.

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Ralston Lake Temperature Statistics

September Temperature

Fremont Municipal Airport (14.9 miles)

  • Lowest 8 September, 2025

    37.4 °F

  • Average September

    59.1 °F

  • Highest 1 September, 2025

    78.8 °F

Climate (2020–Present)

Fremont Municipal Airport (14.9 miles)

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  • Average Low 2020–2025

    40.3 °F

  • Average 2020–2025

    49.3 °F

  • Average High 2020–2025

    58.2 °F
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