Upper Sioux Agency State Park Weather Forecast

    • 52
    • 59

    Chance Rain Showers

    • 55
    • 63

    Mostly Cloudy

    • 49
    • 63

    Rain

    • 41
    • 54

    Rain Likely

    • 40
    • 52

    Chance Rain

    • 39
    • 52

    Slight Chance Rain

Today 31 Oct Yellow Medicine

Partly sunny. Highs in the lower 50s.

Tonight 31 Oct Yellow Medicine

Cloudy. Slight chance of drizzle late in the night. Lows in the lower 50s. South Winds 5 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

    55.4 °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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