Upper Sioux Agency State Park Weather Forecast

    • 41
    • 46

    Rain Showers

    • 44
    • 55

    Chance Rain Showers

    • 42
    • 68

    Partly Sunny

    • 40
    • 63

    Chance Rain Showers

    • 46
    • 63

    Rain Showers Likely

    • 46
    • 64

    Chance Rain Showers

Today 26 Oct Yellow Medicine

Rain. Near steady temperature in the lower 40s. Northeast Winds 10 to 15 Mph. Chance of rain near 100 percent.

Tonight 26 Oct Yellow Medicine

Rain. Lows around 40. East Winds 5 to 15 Mph. Chance of rain near 100 percent.

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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

    57.2 °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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