Winterset Weather Forecast

    • 51
    • 78

    Rain Showers

    • 42
    • 62

    Partly Sunny

    • 45
    • 61

    Mostly Cloudy

    • 48
    • 61

    Chance Thunderstorms

    • 50
    • 64

    Slight Chance Thunderstorms

    • 54
    • 74

    Chance Rain Showers

    • 59
    • 80

    Partly Sunny

Today 18 May Madison

Mostly cloudy. Highs in the upper 70s. South Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 18 May Madison

Thunderstorms likely. Showers early this Evening, then Showers likely. Locally heavy rainfall possible early this evening. Lows in the lower 50s. South Winds around 15 Mph, becoming southwest. Gusts up to 30 Mph. Chance of rain 90 percent.

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  • 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)

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  • Average Low 2021–2026

    43.7 °F

  • Average 2021–2026

    53.5 °F

  • Average High 2021–2026

    63.5 °F
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