Upper Sioux Agency State Park Weather Forecast

    • 68
    • 94

    Sunny

    • 70
    • 93

    Mostly Sunny

    • 72
    • 94

    Mostly Sunny

    • 72
    • 95

    Mostly Sunny

    • 68
    • 92

    Mostly Sunny

    • 66
    • 87

    Partly Sunny

Today 14 Jul Yellow Medicine

Sunny. Highs in the mid 90s. Southwest Winds 5 to 10 Mph. Gusts up to 30 Mph in the morning.

Tonight 14 Jul Yellow Medicine

Clear. Lows in the upper 60s. South Winds 5 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 °F

  • Highest 4 July, 2026

    76.8 °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

    37.4 °F

  • Average 2021–2026

    48 °F

  • Average High 2021–2026

    58.5 °F
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