Upper Sioux Agency State Park Weather Forecast

    • 33
    • 51

    Sunny

    • 43
    • 63

    Mostly Sunny

    • 42
    • 69

    Partly Sunny

    • 43
    • 68

    Mostly Sunny

Today 16 Oct Yellow Medicine

Windy. Mostly cloudy in the morning then clearing. Highs around 50. North Winds 20 to 30 Mph with Gusts to around 45 Mph decreasing to 10 to 20 Mph in the afternoon.

Tonight 16 Oct Yellow Medicine

Clear. Areas of frost in the evening. Widespread frost after midnight. Lows in the lower 30s. West Winds up to 5 Mph shifting to the south with Gusts to around 30 Mph after midnight.

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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

    60.3 °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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