Upper Sioux Agency State Park Weather Forecast

    • 63
    • 81

    Mostly Cloudy

    • 68
    • 83

    Partly Sunny

    • 71
    • 96

    Mostly Sunny

    • 71
    • 97

    Slight Chance Thunderstorms

    • 68
    • 94

    Mostly Sunny

    • 67
    • 91

    Mostly Sunny

Today 23 Jul Yellow Medicine

Partly sunny. Highs in the lower 80s. South Winds 5 to 10 Mph.

Tonight 23 Jul Yellow Medicine

Mostly cloudy. Lows in the lower 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 21 July, 2026

    60.1 °F

  • Average July

    75.2 °F

  • Highest 17 July, 2026

    94.3 °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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