Winterset Weather Forecast

    • 65
    • 88

    Chance Thunderstorms

    • 63
    • 86

    Chance Thunderstorms

    • 63
    • 84

    Rain Showers Likely

    • 60
    • 78

    Chance Thunderstorms

    • 63
    • 81

    Chance Thunderstorms

    • 62
    • 80

    Chance Rain Showers

    • 58
    • 82

    Slight Chance Thunderstorms

Today 16 Sep Madison

Mostly sunny with a chance of Showers and Thunderstorms. Highs in the upper 80s. South Winds around 5 Mph. Chance of rain 30 percent.

Tonight 16 Sep Madison

Mostly cloudy. A chance of Showers and Thunderstorms, mainly this evening. Lows in the mid 60s. Southeast Winds around 5 Mph. Chance of rain 50 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Winterset Temperature Statistics

September Temperature

Des Moines International Airport (23 miles)

  • Lowest 7 September, 2025

    43 °F

  • Average September

    67.9 °F

  • Highest 13 September, 2025

    96.1 °F

Climate (2020–Present)

Des Moines International Airport (23 miles)

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

  • Average Low 2020–2025

    43.3 °F

  • Average 2020–2025

    53 °F

  • Average High 2020–2025

    62.9 °F
Get WillyWeather+ to remove ads