Rumpus Ridge Weather Forecast

    • 57
    • 84

    Becoming Sunny

    • 53
    • 79

    Mostly Sunny

    • 63
    • 82

    Mostly Sunny

    • 59
    • 90

    Breezy

    • 52
    • 76

    Chance Rain Showers

    • 54
    • 68

    Rain Showers Likely

    • 50
    • 69

    Partly Sunny

Today 8 Sep McCook

Mostly sunny. Highs in the lower 80s. Northwest Winds 10 to 15 Mph.

Tonight 8 Sep McCook

Mostly clear. Cooler with Lows in the mid 50s. Northwest Winds 5 to 10 Mph.

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Rumpus Ridge Temperature Statistics

September Temperature

Sioux Falls, Foss Field (21.7 miles)

  • Lowest 2 September, 2026

    63.6 °F

  • Average September

    79.7 °F

  • Highest 4 September, 2026

    99.6 °F

Climate (2021–2026)

Sioux Falls, Foss Field (21.7 miles)

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  • Average Low 2021–2026

    38.7 °F

  • Average 2021–2026

    50 °F

  • Average High 2021–2026

    61.1 °F
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