Jameson Reservoir Weather Forecast

    • 24
    • 44

    Decreasing Clouds

    • 33
    • 44

    Mostly Cloudy

    • 35
    • 55

    Partly Sunny

    • 36
    • 52

    Mostly Cloudy

    • 41
    • 56

    Mostly Cloudy

    • 38
    • 62

    Partly Sunny

Today 20 Dec Cass

Mostly sunny. Highs in the mid 40s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 20 Dec Cass

Mostly clear. Lows in the mid 20s. West Winds around 5 Mph.

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Jameson Reservoir Temperature Statistics

December Temperature

Plattsmouth, Plattsmouth Municipal Airport (7.5 miles)

  • Lowest 14 December, 2025

    2.1 °F

  • Average December

    27.2 °F

  • Highest 16 December, 2025

    56.5 °F

Climate (2020–Present)

Plattsmouth, Plattsmouth Municipal Airport (7.5 miles)

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  • Average Low 2020–2025

    43.6 °F

  • Average 2020–2025

    53.5 °F

  • Average High 2020–2025

    63.8 °F
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