Upper Sioux Agency State Park Weather Forecast

    • 57
    • 78

    Mostly Sunny

    • 61
    • 74

    Slight Chance Rain Showers

    • 44
    • 73

    Chance Rain Showers

    • 40
    • 53

    Chance Rain Showers

    • 37
    • 50

    Slight Chance Rain Showers

    • 39
    • 52

    Mostly Cloudy

Today 22 Oct Yellow Medicine

Sunny. Highs in the upper 70s. Southeast Winds 5 to 10 Mph.

Tonight 22 Oct Yellow Medicine

Warmer. Mostly clear. Lows in the upper 50s. Southeast Winds 5 to 10 Mph with Gusts to around 25 Mph.

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Upper Sioux Agency State Park Temperature Statistics

October Temperature

Granite Falls, Granite Falls Municipal Airport/Lenzen-Roe Memorial Field (5.6 miles)

  • Lowest 17 October, 2026

    30.7 °F

  • Average October

    56.8 °F

  • Highest 10 October, 2026

    92.1 °F

Climate (2021–2026)

Granite Falls, Granite Falls Municipal Airport/Lenzen-Roe Memorial Field (5.6 miles)

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  • Average Low 2021–2026

    37.5 °F

  • Average 2021–2026

    48 °F

  • Average High 2021–2026

    58.4 °F
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