Upper Sioux Agency State Park Weather Forecast

    • 48
    • 69

    Slight Chance Rain Showers

    • 43
    • 68

    Sunny

    • 56
    • 70

    Mostly Sunny

    • 53
    • 78

    Partly Sunny

    • 50
    • 70

    Partly Sunny

    • 50
    • 69

    Partly Sunny

Today 3 Oct Yellow Medicine

Breezy. Mostly sunny. Highs in the upper 70s.

Tonight 3 Oct Yellow Medicine

Mostly clear. Lows in the upper 40s. Northwest Winds 5 to 15 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 1 October, 2026

    42.4 °F

  • Average October

    59.5 °F

  • Highest 1 October, 2026

    67.8 °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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