Sioux Falls Weather Forecast

    • 64
    • 84

    Chance Thunderstorms

    • 63
    • 85

    Mostly Sunny

    • 60
    • 87

    Chance Thunderstorms

    • 59
    • 76

    Rain Showers Likely

    • 54
    • 73

    Chance Rain Showers

    • 55
    • 73

    Partly Sunny

Today 14 Sep Minnehaha

Partly sunny Early, then mostly cloudy with a chance of Showers and Thunderstorms. Highs in the lower 80s. South Winds 15 to 20 Mph. Chance of rain 50 percent.

Tonight 14 Sep Minnehaha

Mostly cloudy in the Evening, then becoming partly cloudy. A chance of Showers and Thunderstorms. Lows in the mid 60s. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

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Sioux Falls Temperature Statistics

September Temperature

Sioux Falls, Foss Field (3.1 miles)

  • Lowest 7 September, 2025

    36 °F

  • Average September

    63.3 °F

  • Highest 12 September, 2025

    88 °F

Climate (2020–Present)

Sioux Falls, Foss Field (3.1 miles)

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  • Average Low 2020–2025

    38.8 °F

  • Average 2020–2025

    49.8 °F

  • Average High 2020–2025

    60.6 °F
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