Upper Sioux Agency State Park Weather Forecast

    • 73
    • 86

    Rain Showers Likely

    • 68
    • 96

    Slight Chance Thunderstorms

    • 67
    • 93

    Chance Thunderstorms

    • 69
    • 91

    Chance Thunderstorms

    • 71
    • 91

    Rain Showers Likely

    • 72
    • 92

    Chance Rain Showers

Today 28 Jun Yellow Medicine

Breezy. Partly sunny. Chance of Showers and slight chance of Thunderstorms late in the morning. Highs in the mid 80s. Southeast Winds 15 to 25 Mph. Gusts up to 40 Mph late in the morning. Chance of precipitation 50 percent.

Tonight 28 Jun Yellow Medicine

Decreasing Clouds. Lows in the lower 70s. East Winds up to 10 Mph.

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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

    69.6 °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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