Upper Sioux Agency State Park Weather Forecast

    • 67
    • 86

    Mostly Sunny

    • 70
    • 89

    Chance Rain Showers

    • 70
    • 89

    Rain Showers Likely

    • 63
    • 83

    Chance Rain Showers

    • 61
    • 81

    Partly Sunny

    • 63
    • 84

    Mostly Sunny

    • 68
    • 86

    Mostly Sunny

Today 5 Jul Yellow Medicine

Sunny. Highs in the mid 80s. East Winds up to 5 Mph.

Tonight 5 Jul Yellow Medicine

Clear. Lows in the mid 60s. Southeast Winds up to 10 Mph.

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Upper Sioux Agency State Park Temperature Statistics

July Temperature

Granite Falls, Granite Falls Municipal Airport/Lenzen-Roe Memorial Field (5.6 miles)

  • Lowest 2 July, 2026

    62.8 °F

  • Average July

    70.7 °F

  • Highest 2 July, 2026

    76.5 °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

    58.6 °F
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