Winterset Weather Forecast

    • 45
    • 62

    Increasing Clouds

    • 48
    • 60

    Rain Showers Likely

    • 50
    • 61

    Rain Showers Likely

    • 52
    • 71

    Slight Chance Thunderstorms

    • 55
    • 79

    Partly Sunny

    • 59
    • 82

    Partly Sunny

Today 20 May Madison

Mostly sunny. Highs in the lower 60s. Northeast Winds around 10 Mph.

Tonight 20 May Madison

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the mid 40s. Northeast Winds 5 to 10 Mph.

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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

    61.7 °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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