Upper Sioux Agency State Park Weather Forecast

    • 49
    • 67

    Mostly Cloudy

    • 64
    • 78

    Mostly Sunny

    • 63
    • 85

    Breezy

    • 49
    • 77

    Mostly Cloudy

    • 40
    • 59

    Slight Chance Rain Showers

    • 40
    • 57

    Partly Sunny

Today 8 Oct Yellow Medicine

Partly sunny. Highs in the upper 60s. West Winds up to 5 Mph.

Tonight 8 Oct Yellow Medicine

Partly cloudy. Lows in the upper 40s. Southeast 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

    55.5 °F

  • Highest 5 October, 2026

    77.4 °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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