Horseshoe Lake Weather Forecast

    • 67
    • 93

    Sunny

    • 67
    • 93

    Sunny

    • 70
    • 96

    Sunny

    • 72
    • 97

    Hot

    • 76
    • 98

    Hot

    • 77
    • 100

    Hot

Today 12 Jul Union

Sunny. Highs in the lower 90s. South Winds 5 to 10 Mph.

Tonight 12 Jul Union

Clear with Lows in the upper 60s. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Horseshoe Lake Temperature Statistics

July Temperature

Sioux City, Sioux Gateway Airport (17.4 miles)

  • Lowest 5 July, 2026

    61.6 °F

  • Average July

    78.2 °F

  • Highest 7 July, 2026

    90.6 °F

Climate (2021–2026)

Sioux City, Sioux Gateway Airport (17.4 miles)

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  • Average Low 2021–2026

    39.1 °F

  • Average 2021–2026

    51.2 °F

  • Average High 2021–2026

    63.4 °F
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