Green Valley Weather Forecast

    • 50
    • 71

    Chance Rain Showers

    • 52
    • 71

    Rain Showers

    • 47
    • 69

    Partly Sunny

    • 52
    • 67

    Chance Rain Showers

    • 53
    • 71

    Chance Rain Showers

    • 52
    • 73

    Chance Rain Showers

Today 13 Sep Lyon

Mostly cloudy with a chance of Showers this Morning, then mostly sunny this afternoon. Highs around 70. West Winds around 5 Mph, becoming southwest this afternoon. Chance of rain 50 percent.

Tonight 13 Sep Lyon

Mostly clear in the Evening, then becoming partly cloudy. Lows around 50. Southeast Winds around 5 Mph, increasing to 10 to 15 Mph after midnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Green Valley Temperature Statistics

September Temperature

Marshall, Southwest Minnesota Regional Airport - Marshall/Ryan Field (5.6 miles)

  • Lowest 10 September, 2026

    52 °F

  • Average September

    73.7 °F

  • Highest 3 September, 2026

    93 °F

Climate (2021–2026)

Marshall, Southwest Minnesota Regional Airport - Marshall/Ryan Field (5.6 miles)

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

  • Average Low 2021–2026

    37.2 °F

  • Average 2021–2026

    47.1 °F

  • Average High 2021–2026

    56.9 °F
Get WillyWeather+ to remove ads