Upper Sioux Agency State Park Weather Forecast

    • 63
    • 74

    Chance Rain Showers

    • 42
    • 70

    Chance Rain Showers

    • 38
    • 52

    Rain Showers Likely

    • 39
    • 50

    Rain Showers Likely

    • 43
    • 57

    Chance Rain Showers

    • 41
    • 62

    Slight Chance Rain Showers

Today 23 Oct Yellow Medicine

Breezy. Partly sunny. A 50 percent chance of Showers early in the afternoon. Highs in the mid 70s. Southeast Winds 15 to 25 Mph with Gusts to around 40 Mph.

Tonight 23 Oct Yellow Medicine

Breezy. Mostly cloudy. Lows in the lower 60s. South Winds 15 to 25 Mph with Gusts to around 45 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 17 October, 2026

    30.7 °F

  • Average October

    56.7 °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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