Effigy Mounds National Monument Weather Forecast

    • 6
    • 27

    Snow

    • -18
    • 18

    Partly Sunny

    • -18
    • -6

    Cold

    • -11
    • 0

    Cold

    • -10
    • 8

    Cold

    • 1
    • 13

    Partly Sunny

Today 21 Jan Clayton

Snow. Snow may be heavy at Times. Snow accumulation of 1 to 3 Inches. Not as cold with Highs in the upper 20s. West Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of snow 100 percent.

Tonight 21 Jan Clayton

Patchy blowing snow in the evening. Mostly cloudy with a chance of snow in the Evening, then partly cloudy after midnight. Additional snow accumulation little or no. Blustery with Lows around 6 above. West Winds 15 to 25 Mph. Gusts up to 45 Mph, decreasing to 30 Mph after midnight. Chance of snow 40 percent.

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Effigy Mounds National Monument Temperature Statistics

January Temperature

Prairie Du Chien Municipal Airport (5.6 miles)

  • Lowest 18 January, 2026

    1 °F

  • Average January

    26.3 °F

  • Highest 13 January, 2026

    50.4 °F

Climate (2021–Present)

Prairie Du Chien Municipal Airport (5.6 miles)

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  • Average Low 2021–2026

    40.3 °F

  • Average 2021–2026

    49.8 °F

  • Average High 2021–2026

    59.3 °F
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