Upper Sioux Agency State Park Weather Forecast

    • 54
    • 79

    Becoming Sunny

    • 52
    • 81

    Sunny

    • 65
    • 84

    Rain Showers Likely

    • 68
    • 85

    Mostly Cloudy

    • 66
    • 90

    Slight Chance Thunderstorms

    • 60
    • 87

    Partly Sunny

    • 60
    • 84

    Slight Chance Thunderstorms

Today 26 Aug Yellow Medicine

Sunny. Highs around 80. Northwest Winds 10 to 15 Mph.

Tonight 26 Aug Yellow Medicine

Mostly clear. Lows in the mid 50s. Northwest Winds up to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Upper Sioux Agency State Park Temperature Statistics

August Temperature

Granite Falls, Granite Falls Municipal Airport/Lenzen-Roe Memorial Field (5.6 miles)

  • Lowest 23 August, 2026

    48.7 °F

  • Average August

    71.3 °F

  • Highest 12 August, 2026

    85.3 °F

Climate (2021–2026)

Granite Falls, Granite Falls Municipal Airport/Lenzen-Roe Memorial Field (5.6 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    37.4 °F

  • Average 2021–2026

    48 °F

  • Average High 2021–2026

    58.4 °F
Get WillyWeather+ to remove ads