Effigy Mounds National Monument Weather Forecast

    • 61
    • 79

    Rain Showers Likely

    • 54
    • 75

    Chance Rain Showers

    • 58
    • 79

    Mostly Sunny

    • 62
    • 82

    Mostly Sunny

    • 66
    • 84

    Mostly Sunny

    • 67
    • 86

    Partly Sunny

Today 4 Aug Clayton

Partly sunny with a slight chance of Showers and Thunderstorms in the Morning, then mostly cloudy with a chance of Showers and Thunderstorms in the afternoon. Humid with Highs in the upper 70s. Southwest Winds 5 to 10 Mph, becoming west in the afternoon. Chance of rain 40 percent.

Tonight 4 Aug Clayton

Showers likely with a chance of Thunderstorms. Lows in the lower 60s. Northwest Winds around 5 Mph. Chance of rain 70 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, 2026

    63.1 °F

  • Average August

    70.8 °F

  • Highest 1 August, 2026

    81 °F

Climate (2021–2026)

Prairie Du Chien Municipal Airport (5.6 miles)

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  • Average Low 2021–2026

    40.5 °F

  • Average 2021–2026

    50 °F

  • Average High 2021–2026

    59.5 °F
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