Effigy Mounds National Monument Weather Forecast

    • 64
    • 82

    Decreasing Clouds

    • 62
    • 83

    Mostly Sunny

    • 57
    • 82

    Mostly Sunny

    • 61
    • 82

    Partly Sunny

    • 65
    • 82

    Chance Thunderstorms

    • 68
    • 86

    Chance Rain Showers

Today 25 Aug Clayton

Mostly sunny. Highs in the lower 80s. South Winds 5 to 10 Mph.

Tonight 25 Aug Clayton

Partly cloudy. Patchy fog. Near steady temperature in the lower 60s. Light Winds.

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  • Temperature Real-Time

Effigy Mounds National Monument Temperature Statistics

August Temperature

Prairie Du Chien Municipal Airport (5.6 miles)

  • Lowest 20 August, 2026

    55.8 °F

  • Average August

    71.6 °F

  • Highest 10 August, 2026

    85.3 °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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