Des Moines Weather Forecast

    • 70
    • 90

    Slight Chance Thunderstorms

    • 67
    • 91

    Slight Chance Thunderstorms

    • 66
    • 90

    Chance Thunderstorms

    • 64
    • 85

    Rain Showers Likely

    • 61
    • 81

    Chance Thunderstorms

    • 58
    • 77

    Slight Chance Thunderstorms

Today 14 Sep Polk

Mostly sunny. Highs around 90. South Winds 5 to 10 Mph.

Tonight 14 Sep Polk

Mostly cloudy with a slight chance of Showers and Thunderstorms. Humid with Lows in the upper 60s. Southeast Winds 5 to 10 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Des Moines Temperature Statistics

September Temperature

Des Moines International Airport (5 miles)

  • Lowest 7 September, 2025

    43 °F

  • Average September

    65.8 °F

  • Highest 12 September, 2025

    87.1 °F

Climate (2020–Present)

Des Moines International Airport (5 miles)

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  • Average Low 2020–2025

    43.3 °F

  • Average 2020–2025

    53 °F

  • Average High 2020–2025

    62.8 °F
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