Mattison Park Weather Forecast

    • 61
    • 71

    Slight Chance Rain Showers

    • 62
    • 69

    Rain Showers

    • 58
    • 69

    Rain Showers

    • 47
    • 62

    Partly Sunny

    • 50
    • 62

    Mostly Sunny

    • 51
    • 64

    Partly Sunny

    • 46
    • 60

    Mostly Sunny

Today 28 Sep Dixon

Mostly sunny. Highs in the upper 50s.

Tonight 28 Sep Dixon

Mostly cloudy. Lows in the lower 60s. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

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Mattison Park Temperature Statistics

September Temperature

Sioux City, Sioux Gateway Airport (19.3 miles)

  • Lowest 10 September, 2026

    50.6 °F

  • Average September

    69.8 °F

  • Highest 18 September, 2026

    96.7 °F

Climate (2021–2026)

Sioux City, Sioux Gateway Airport (19.3 miles)

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  • Average Low 2021–2026

    39.2 °F

  • Average 2021–2026

    51.3 °F

  • Average High 2021–2026

    63.4 °F
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