Klasey Park Weather Forecast

    • 64
    • 89

    Increasing Clouds

    • 62
    • 79

    Rain Showers

    • 59
    • 76

    Rain Showers Likely

    • 56
    • 73

    Chance Rain Showers

    • 58
    • 77

    Slight Chance Thunderstorms

    • 59
    • 80

    Partly Sunny

Today 16 Sep Dakota

Sunny. Highs in the upper 80s. South Winds 5 to 10 Mph.

Tonight 16 Sep Dakota

Partly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then mostly cloudy with a chance of Showers and Thunderstorms after midnight. Humid with Lows in the lower 60s. Southeast Winds 5 to 10 Mph, becoming west after midnight. Chance of rain 50 percent.

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Klasey Park Temperature Statistics

September Temperature

Sioux City, Sioux Gateway Airport (5 miles)

  • Lowest 7 September, 2025

    37.9 °F

  • Average September

    64.2 °F

  • Highest 13 September, 2025

    91.9 °F

Climate (2020–Present)

Sioux City, Sioux Gateway Airport (5 miles)

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  • Average Low 2020–2025

    38.8 °F

  • Average 2020–2025

    50.7 °F

  • Average High 2020–2025

    62.6 °F
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