Upper Sioux Agency State Park Weather Forecast

    • 58
    • 77

    Rain Showers

    • 54
    • 75

    Partly Sunny

    • 56
    • 75

    Partly Sunny

    • 61
    • 75

    Chance Rain Showers

    • 68
    • 82

    Rain Showers Likely

    • 69
    • 92

    Chance Thunderstorms

Today 23 Jun Yellow Medicine

Chance of Showers and slight chance of Thunderstorms late in the Morning, then chance of Thunderstorms in the afternoon. Showers likely late in the afternoon. Near steady temperature in the mid 70s. Southwest Winds 10 to 15 Mph with Gusts to around 30 Mph. Chance of precipitation 70 percent.

Tonight 23 Jun Yellow Medicine

Partly cloudy. A 50 percent chance of Thunderstorms in the evening. Lows in the upper 50s. West Winds 5 to 10 Mph.

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  • Temperature Real-Time

Upper Sioux Agency State Park Temperature Statistics

June Temperature

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

  • Lowest 15 June, 2026

    48.9 °F

  • Average June

    70 °F

  • Highest 9 June, 2026

    92.8 °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

    48.1 °F

  • Average High 2021–2026

    58.6 °F
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