Harpers Ferry Weather Forecast

    • 48
    • 82

    Becoming Sunny

    • 43
    • 70

    Becoming Sunny

    • 53
    • 75

    Rain Showers

    • 55
    • 85

    Slight Chance Thunderstorms

    • 56
    • 85

    Chance Thunderstorms

    • 60
    • 83

    Rain Showers Likely

    • 55
    • 82

    Rain Showers Likely

Today 12 May Allamakee

Partly sunny. Warmer with Highs in the upper 70s. West Winds 15 to 20 Mph with Gusts up to 35 Mph.

Tonight 12 May Allamakee

Mostly clear. Lows in the upper 40s. Northwest Winds 10 to 20 Mph. Gusts up to 35 Mph this evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Harpers Ferry Temperature Statistics

May Temperature

Prairie Du Chien Municipal Airport (12.4 miles)

  • Lowest 2 May, 2026

    31.1 °F

  • Average May

    52.3 °F

  • Highest 4 May, 2026

    80.4 °F

Climate (2021–Present)

Prairie Du Chien Municipal Airport (12.4 miles)

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  • Average Low 2021–2026

    40.5 °F

  • Average 2021–2026

    50 °F

  • Average High 2021–2026

    59.5 °F
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