Upper Sioux Agency State Park Weather Forecast

    • 42
    • 68

    Rain Showers Likely

    • 38
    • 52

    Rain Showers

    • 39
    • 47

    Rain Showers

    • 44
    • 57

    Chance Rain Showers

    • 39
    • 62

    Partly Sunny

    • 41
    • 60

    Partly Sunny

Today 24 Oct Yellow Medicine

Breezy. Mostly cloudy. Rain Showers and slight chance of Thunderstorms late in the Morning, then chance of rain Showers and slight chance of Thunderstorms in the afternoon. Highs 62 to 68. Temperatures falling into the mid 50s in the afternoon. Northwest Winds 15 to 25 Mph decreasing to 10 to 15 Mph in the afternoon. Chance of precipitation 80 percent.

Tonight 24 Oct Yellow Medicine

Colder. Mostly cloudy with a 20 percent chance of rain Showers. Lows in the lower 40s. 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 17 October, 2026

    30.7 °F

  • Average October

    56.8 °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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