Effigy Mounds National Monument Weather Forecast

    • 13
    • 31

    Chance Snow

    • 12
    • 24

    Snow

    • -3
    • 19

    Partly Sunny

    • 11
    • 23

    Chance Snow

    • 23
    • 35

    Snow Likely

    • 5
    • 34

    Slight Chance Snow

Today 5 Dec Clayton

Cloudy with a 50 percent chance of snow. Snow accumulation little or no. Not as cool. Near steady temperature in the upper 20s. Southwest Winds 10 to 15 Mph.

Tonight 5 Dec Clayton

Mostly cloudy. A chance of snow in the evening. Snow accumulation little or no. Lows around 12. West Winds 5 to 10 Mph. Chance of snow 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Effigy Mounds National Monument Temperature Statistics

December Temperature

Prairie Du Chien Municipal Airport (5.6 miles)

  • Lowest 1 December, 2025

    5.4 °F

  • Average December

    20.8 °F

  • Highest 3 December, 2025

    32 °F

Climate (2020–Present)

Prairie Du Chien Municipal Airport (5.6 miles)

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  • Average Low 2020–2025

    40.4 °F

  • Average 2020–2025

    49.8 °F

  • Average High 2020–2025

    59.3 °F
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