Upper Sioux Agency State Park Weather Forecast

    • 58
    • 75

    Rain Showers Likely

    • 53
    • 76

    Rain Showers

    • 50
    • 71

    Partly Sunny

    • 55
    • 78

    Slight Chance Rain Showers

    • 59
    • 80

    Chance Rain Showers

    • 58
    • 78

    Chance Rain Showers

Today 16 Jun Yellow Medicine

Increasing Clouds. Highs in the mid 70s. Northwest Winds 10 to 15 Mph.

Tonight 16 Jun Yellow Medicine

Mostly cloudy. Chance of rain Showers and slight chance of Thunderstorms in the Evening, then rain Showers likely and chance of Thunderstorms after midnight. Lows in the upper 50s. South Winds 5 to 15 Mph. Chance of precipitation 70 percent.

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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 13 June, 2026

    55.9 °F

  • Average June

    73.5 °F

  • Highest 9 June, 2026

    92.8 °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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