Upper Sioux Agency State Park Weather Forecast

    • 48
    • 74

    Increasing Clouds

    • 43
    • 62

    Partly Sunny

    • 44
    • 61

    Mostly Sunny

    • 41
    • 61

    Chance Rain Showers

    • 32
    • 54

    Mostly Sunny

    • 42
    • 59

    Mostly Sunny

Today 12 Oct Yellow Medicine

Cooler. Mostly cloudy. A 20 percent chance of rain Showers in the late morning and afternoon. Highs 68 to 74. North Winds up to 10 Mph.

Tonight 12 Oct Yellow Medicine

Mostly cloudy. Lows in the mid 40s. Northwest Winds 10 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 2 October, 2026

    34.9 °F

  • Average October

    58 °F

  • Highest 6 October, 2026

    86 °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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