Horseshoe Lake Weather Forecast

    • 49
    • 85

    Decreasing Clouds

    • 50
    • 77

    Chance Thunderstorms

    • 47
    • 74

    Rain Showers Likely

    • 54
    • 82

    Partly Sunny

    • 32
    • 70

    Chance Rain/Snow

    • 29
    • 52

    Chance Rain/Snow

Today 13 Apr Union

Areas of fog this morning. Partly sunny. Highs in the lower 80s. East Winds 10 to 15 Mph, becoming south this afternoon.

Tonight 13 Apr Union

Partly cloudy. A slight chance of Showers in the evening. Less humid with Lows in the upper 40s. Northwest Winds 10 to 15 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Horseshoe Lake Temperature Statistics

April Temperature

Sioux City, Sioux Gateway Airport (17.4 miles)

  • Lowest 9 April, 2026

    26.7 °F

  • Average April

    43.5 °F

  • Highest 5 April, 2026

    66.7 °F

Climate (2021–Present)

Sioux City, Sioux Gateway Airport (17.4 miles)

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  • Average Low 2021–2026

    39 °F

  • Average 2021–2026

    51.1 °F

  • Average High 2021–2026

    63.2 °F
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