Effigy Mounds National Monument Weather Forecast

    • 44
    • 70

    Becoming Sunny

    • 46
    • 72

    Mostly Sunny

    • 48
    • 73

    Mostly Sunny

    • 52
    • 69

    Mostly Cloudy

    • 52
    • 70

    Mostly Cloudy

    • 47
    • 69

    Partly Sunny

Today 20 Oct Clayton

Patchy fog this morning. Sunny. Highs in the upper 60s. Southeast Winds 5 to 10 Mph.

Tonight 20 Oct Clayton

Mostly clear. Lows in the mid 40s. Southeast Winds around 5 Mph.

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Effigy Mounds National Monument Temperature Statistics

October Temperature

Prairie Du Chien Municipal Airport (5.6 miles)

  • Lowest 5 October, 2026

    42.3 °F

  • Average October

    57.2 °F

  • Highest 6 October, 2026

    78.8 °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

    49.9 °F

  • Average High 2021–2026

    59.4 °F
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