Upper Sioux Agency State Park Weather Forecast

    • 67
    • 87

    Mostly Sunny

    • 69
    • 89

    Mostly Sunny

    • 70
    • 92

    Mostly Sunny

    • 71
    • 92

    Mostly Sunny

    • 69
    • 92

    Mostly Sunny

Today 10 Jul Yellow Medicine

Mostly sunny. Slight chance of Showers in the Morning, then chance of Thunderstorms in the afternoon. Highs in the upper 80s. South Winds 5 to 10 Mph. Chance of precipitation 40 percent.

Tonight 10 Jul Yellow Medicine

Partly cloudy. A 40 percent chance of Thunderstorms in the evening. 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

    70.9 °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

    37.5 °F

  • Average 2021–2026

    48 °F

  • Average High 2021–2026

    58.5 °F
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