Mattison Park Weather Forecast

    • 67
    • 87

    Decreasing Clouds

    • 68
    • 92

    Increasing Clouds

    • 62
    • 86

    Chance Thunderstorms

    • 64
    • 87

    Mostly Sunny

    • 62
    • 86

    Rain Showers Likely

    • 58
    • 77

    Chance Thunderstorms

    • 54
    • 75

    Chance Rain Showers

Today 12 Sep Dixon

Partly sunny with a chance of Sprinkles. Highs in the mid 80s. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 12 Sep Dixon

Partly cloudy. Lows in the upper 60s. Southeast Winds 5 to 10 Mph, becoming south after midnight.

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Mattison Park Temperature Statistics

September Temperature

Sioux City, Sioux Gateway Airport (19.3 miles)

  • Lowest 7 September, 2025

    37.9 °F

  • Average September

    61 °F

  • Highest 10 September, 2025

    81 °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

    62.6 °F
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