Harpers Ferry Weather Forecast

    • 67
    • 87

    Slight Chance Thunderstorms

    • 63
    • 80

    Rain Showers Likely

    • 65
    • 81

    Rain Showers Likely

    • 67
    • 84

    Rain Showers Likely

    • 61
    • 82

    Partly Sunny

    • 59
    • 80

    Partly Sunny

Today 12 Aug Allamakee

Mostly sunny. Near steady temperature in the mid 80s. East Winds around 5 Mph.

Tonight 12 Aug Allamakee

Partly cloudy this Evening, then becoming mostly cloudy. Patchy smoke. Lows in the upper 60s. East Winds around 5 Mph this Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Harpers Ferry Temperature Statistics

August Temperature

Prairie Du Chien Municipal Airport (12.4 miles)

  • Lowest 3 August, 2026

    59 °F

  • Average August

    70.9 °F

  • Highest 10 August, 2026

    85.3 °F

Climate (2021–2026)

Prairie Du Chien Municipal Airport (12.4 miles)

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  • Average Low 2021–2026

    40.4 °F

  • Average 2021–2026

    49.9 °F

  • Average High 2021–2026

    59.5 °F
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