Upper Sioux Agency State Park Weather Forecast

    • 60
    • 82

    Chance Thunderstorms

    • 66
    • 89

    Increasing Clouds

    • 67
    • 92

    Chance Thunderstorms

    • 64
    • 88

    Chance Thunderstorms

    • 71
    • 92

    Chance Thunderstorms

    • 71
    • 96

    Chance Rain Showers

    • 66
    • 89

    Chance Thunderstorms

Today 5 Jun Yellow Medicine

Mostly sunny with isolated Thunderstorms. Near steady temperature around 80. West Winds 5 to 10 Mph. Chance of Thunderstorms 20 percent.

Tonight 5 Jun Yellow Medicine

Mostly clear. A 20 percent chance of Thunderstorms early in the evening. Patchy fog late in the night. Some Thunderstorms may be severe with damaging Winds and large hail. Lows in the upper 50s. Northwest Winds up to 10 Mph shifting to the west after midnight.

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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

    75.5 °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

    48.2 °F

  • Average High 2021–2026

    58.7 °F
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