Upper Sioux Agency State Park Weather Forecast

    • 68
    • 96

    Chance Thunderstorms

    • 66
    • 91

    Rain Showers

    • 66
    • 86

    Rain Showers

    • 69
    • 90

    Rain Showers

    • 70
    • 90

    Chance Thunderstorms

    • 67
    • 89

    Rain Showers Likely

Today 29 Jun Yellow Medicine

Breezy, Warmer, sunny. Highs in the upper 90s. South Winds 20 to 25 Mph with Gusts to around 40 Mph.

Tonight 29 Jun Yellow Medicine

Breezy. Partly cloudy. A 50 percent chance of Thunderstorms in the evening. Lows in the upper 60s. Southwest Winds 15 to 25 Mph decreasing to 5 to 10 Mph 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 15 June, 2026

    48.9 °F

  • Average June

    69.7 °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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