Upper Sioux Agency State Park Weather Forecast

    • 52
    • 77

    Sunny

    • 62
    • 81

    Mostly Sunny

    • 58
    • 85

    Slight Chance Thunderstorms

    • 49
    • 73

    Partly Sunny

    • 50
    • 64

    Rain Showers Likely

    • 49
    • 65

    Chance Rain Showers

Today 9 Sep Yellow Medicine

Sunny. Highs in the upper 70s. West Winds 5 to 15 Mph.

Tonight 9 Sep Yellow Medicine

Cooler, clear. Near steady temperature around 60. West Winds up to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Upper Sioux Agency State Park Temperature Statistics

September Temperature

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

  • Lowest 1 September, 2026

    57 °F

  • Average September

    75.3 °F

  • Highest 3 September, 2026

    92.8 °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

    58.5 °F
Get WillyWeather+ to remove ads