Effigy Mounds National Monument Weather Forecast

    • 67
    • 82

    Rain Showers Likely

    • 66
    • 85

    Rain Showers Likely

    • 62
    • 79

    Rain Showers Likely

    • 61
    • 76

    Rain Showers Likely

    • 64
    • 79

    Chance Rain Showers

    • 60
    • 77

    Slight Chance Rain Showers

Today 11 Aug Clayton

Mostly cloudy with Showers likely with a chance of Thunderstorms in the Morning, then partly sunny with a slight chance of Showers and Thunderstorms in the afternoon. Humid with Highs in the lower 80s. Light Winds, becoming west in the afternoon. Chance of rain 70 percent.

Tonight 11 Aug Clayton

Partly cloudy in the Evening, then becoming mostly cloudy. Humid with Lows in the upper 60s. Northeast Winds around 5 Mph in the Evening, becoming light and variable.

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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 3 August, 2026

    59 °F

  • Average August

    70.4 °F

  • Highest 3 August, 2026

    83.3 °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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