Winterset Weather Forecast

    • 53
    • 81

    Rain Showers

    • 43
    • 62

    Mostly Cloudy

    • 45
    • 62

    Mostly Cloudy

    • 49
    • 64

    Chance Thunderstorms

    • 52
    • 71

    Slight Chance Thunderstorms

    • 57
    • 77

    Chance Rain Showers

Today 18 May Madison

Mostly cloudy with a slight chance of Showers and Thunderstorms. Highs in the lower 80s. South Winds 15 to 20 Mph. Chance of rain 20 percent.

Tonight 18 May Madison

Showers with Thunderstorms likely. Lows in the lower 50s. South Winds around 20 Mph, becoming west after midnight. Chance of rain 90 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Winterset Temperature Statistics

May Temperature

Des Moines International Airport (23 miles)

  • Lowest 2 May, 2026

    37.7 °F

  • Average May

    60.6 °F

  • Highest 15 May, 2026

    88.6 °F

Climate (2021–Present)

Des Moines International Airport (23 miles)

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

  • Average Low 2021–2026

    43.7 °F

  • Average 2021–2026

    53.5 °F

  • Average High 2021–2026

    63.5 °F
Get WillyWeather+ to remove ads