Upper Sioux Agency State Park Weather Forecast

    • 50
    • 84

    Mostly Sunny

    • 46
    • 73

    Increasing Clouds

    • 49
    • 67

    Partly Sunny

    • 61
    • 75

    Mostly Sunny

    • 61
    • 84

    Breezy

    • 53
    • 77

    Mostly Cloudy

    • 47
    • 62

    Chance Rain Showers

Today 6 Oct Yellow Medicine

Partly sunny. Highs in the upper 50s.

Tonight 6 Oct Yellow Medicine

Increasing Clouds. Lows in the lower 50s. Northwest Winds up to 10 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

    55.1 °F

  • Highest 4 October, 2026

    72.7 °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

    58.3 °F
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