Lewis and Clark National Historic Trail Weather Forecast

    • 64
    • 88

    Slight Chance Thunderstorms

    • 63
    • 88

    Partly Sunny

    • 61
    • 82

    Rain Showers Likely

    • 59
    • 75

    Rain Showers Likely

    • 56
    • 74

    Chance Rain Showers

    • 55
    • 73

    Partly Sunny

Today 15 Sep Otoe

Partly cloudy Early, then clearing. A slight chance of Showers and Thunderstorms early. Humid with Highs in the upper 80s. Southeast Winds 5 to 10 Mph, becoming south this afternoon. Chance of rain 20 percent.

Tonight 15 Sep Otoe

Mostly clear. Humid with Lows in the mid 60s. South Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lewis and Clark National Historic Trail Temperature Statistics

September Temperature

Nebraska City, Nebraska City Municipal Airport (4.3 miles)

  • Lowest 6 September, 2025

    46 °F

  • Average September

    65.3 °F

  • Highest 12 September, 2025

    93.9 °F

Climate (2020–Present)

Nebraska City, Nebraska City Municipal Airport (4.3 miles)

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  • Average Low 2020–2025

    43.2 °F

  • Average 2020–2025

    53.3 °F

  • Average High 2020–2025

    63.9 °F
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