Effigy Mounds National Monument Weather Forecast

    • 61
    • 84

    Sunny

    • 60
    • 87

    Chance Rain Showers

    • 58
    • 85

    Chance Thunderstorms

    • 56
    • 84

    Mostly Sunny

    • 56
    • 79

    Partly Sunny

    • 53
    • 77

    Mostly Sunny

Today 25 May Clayton

Mostly sunny. Highs in the mid 80s. South Winds 10 to 15 Mph.

Tonight 25 May Clayton

Clear. Lows in the lower 60s. South Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Effigy Mounds National Monument Temperature Statistics

May Temperature

Prairie Du Chien Municipal Airport (5.6 miles)

  • Lowest 2 May, 2026

    31.1 °F

  • Average May

    57.1 °F

  • Highest 15 May, 2026

    84.4 °F

Climate (2021–Present)

Prairie Du Chien Municipal Airport (5.6 miles)

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  • Average Low 2021–2026

    40.4 °F

  • Average 2021–2026

    49.9 °F

  • Average High 2021–2026

    59.5 °F
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