Effigy Mounds National Monument Weather Forecast

    • 57
    • 76

    Chance Thunderstorms

    • 57
    • 76

    Slight Chance Thunderstorms

    • 55
    • 77

    Partly Sunny

    • 55
    • 76

    Partly Sunny

    • 56
    • 78

    Chance Rain Showers

    • 45
    • 68

    Chance Rain Showers

Today 29 Aug Clayton

Partly sunny this Morning, then mostly cloudy with scattered Showers and Thunderstorms this afternoon. Highs in the mid 70s. South Winds around 5 Mph. Chance of rain 50 percent.

Tonight 29 Aug Clayton

Mostly cloudy. A chance of Thunderstorms with a slight chance of Showers in the evening. Lows in the upper 50s. Southeast Winds around 5 Mph. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Effigy Mounds National Monument Temperature Statistics

August Temperature

Prairie Du Chien Municipal Airport (5.6 miles)

  • Lowest 1 August, 2025

    52.7 °F

  • Average August

    71.9 °F

  • Highest 8 August, 2025

    89.6 °F

Climate (2020–Present)

Prairie Du Chien Municipal Airport (5.6 miles)

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  • Average Low 2020–2025

    40.2 °F

  • Average 2020–2025

    49.6 °F

  • Average High 2020–2025

    59 °F
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