Klasey Park Weather Forecast

    • 64
    • 75

    Rain Showers Likely

    • 64
    • 86

    Chance Thunderstorms

    • 57
    • 71

    Chance Rain Showers

    • 54
    • 64

    Chance Rain Showers

    • 51
    • 62

    Slight Chance Rain Showers

    • 52
    • 66

    Mostly Cloudy

Today 17 Sep Dakota

Mostly cloudy with a chance of Sprinkles this Morning, then partly sunny this afternoon. Highs in the mid 70s. North Winds around 5 Mph, becoming northeast this afternoon.

Tonight 17 Sep Dakota

Mostly cloudy with a chance of Thunderstorms. A chance of Showers in the Evening, then Showers likely after midnight. Humid with Lows in the lower 60s. East Winds 10 to 15 Mph. Chance of rain 60 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Klasey Park Temperature Statistics

September Temperature

Sioux City, Sioux Gateway Airport (5 miles)

  • Lowest 10 September, 2026

    50.6 °F

  • Average September

    73.2 °F

  • Highest 3 September, 2026

    93.7 °F

Climate (2021–2026)

Sioux City, Sioux Gateway Airport (5 miles)

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  • Average Low 2021–2026

    39.1 °F

  • Average 2021–2026

    51.3 °F

  • Average High 2021–2026

    63.4 °F
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