Upper Sioux Agency State Park Weather Forecast

    • 73
    • 95

    Rain Showers Likely

    • 61
    • 91

    Rain Showers Likely

    • 59
    • 78

    Chance Rain Showers

    • 58
    • 81

    Partly Sunny

    • 54
    • 76

    Slight Chance Thunderstorms

Today 9 Jun Yellow Medicine

Mostly sunny. Highs in the mid 90s. Southeast Winds 5 to 10 Mph increasing to 15 to 20 Mph in the afternoon.

Tonight 9 Jun Yellow Medicine

Mostly clear with chance of Thunderstorms in the Evening, then mostly cloudy with Showers likely and chance of Thunderstorms after midnight. Lows in the lower 70s. South Winds 10 to 20 Mph with Gusts to around 35 Mph. Chance of precipitation 70 percent.

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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 1 June, 2026

    62.1 °F

  • Average June

    73.9 °F

  • Highest 2 June, 2026

    88.2 °F

Climate (2021–Present)

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

    58.7 °F
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