Big Sioux River Corridor Weather Forecast

    • 50
    • 69

    Chance Rain Showers

    • 45
    • 68

    Chance Rain Showers

    • 39
    • 66

    Chance Rain Showers

    • 47
    • 73

    Mostly Sunny

    • 51
    • 78

    Mostly Sunny

    • 53
    • 79

    Chance Rain Showers

    • 54
    • 80

    Chance Rain Showers

Today 30 Apr Plymouth

Partly sunny with a slight chance of Showers late this Morning, then mostly cloudy with a chance of Showers this afternoon. Highs in the upper 60s. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

Tonight 30 Apr Plymouth

Mostly cloudy. Isolated Showers and Thunderstorms late this Evening, then scattered Showers and Thunderstorms. Lows in the upper 40s. Southeast Winds 5 to 10 Mph, becoming south. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Big Sioux River Corridor Temperature Statistics

April Temperature

Sioux City, Sioux Gateway Airport (19.3 miles)

  • Lowest 6 April, 2025

    21.8 °F

  • Average April

    51.4 °F

  • Highest 28 April, 2025

    89.1 °F

Climate (2020–Present)

Sioux City, Sioux Gateway Airport (19.3 miles)

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  • Average Low 2020–2025

    38.8 °F

  • Average 2020–2025

    50.6 °F

  • Average High 2020–2025

    62.5 °F
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