Effigy Mounds National Monument Weather Forecast

    • 44
    • 79

    Increasing Clouds

    • 26
    • 51

    Mostly Cloudy

    • 36
    • 50

    Partly Sunny

    • 37
    • 58

    Mostly Cloudy

    • 43
    • 56

    Mostly Cloudy

    • 27
    • 59

    Slight Chance Rain Showers

Today 21 Mar Clayton

Mostly sunny. Warmer with Highs around 80. South Winds 5 to 10 Mph, becoming southwest 10 to 15 Mph this afternoon.

Tonight 21 Mar Clayton

Partly cloudy. Lows in the mid 40s. Southwest Winds 5 to 10 Mph, becoming north 10 to 15 Mph after midnight.

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  • Temperature Real-Time

Effigy Mounds National Monument Temperature Statistics

March Temperature

Prairie Du Chien Municipal Airport (5.6 miles)

  • Lowest 1 March, 2026

    9.7 °F

  • Average March

    37.8 °F

  • Highest 9 March, 2026

    68.5 °F

Climate (2021–Present)

Prairie Du Chien Municipal Airport (5.6 miles)

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  • Average Low 2021–2026

    40.5 °F

  • Average 2021–2026

    49.9 °F

  • Average High 2021–2026

    59.5 °F
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