Harpers Ferry Weather Forecast

    • 56
    • 80

    Becoming Sunny

    • 62
    • 82

    Partly Sunny

    • 61
    • 84

    Slight Chance Thunderstorms

    • 57
    • 81

    Mostly Sunny

    • 57
    • 78

    Partly Sunny

    • 60
    • 79

    Partly Sunny

    • 62
    • 83

    Mostly Sunny

Today 19 Aug Allamakee

Mostly sunny. Near steady temperature in the upper 70s. North Winds around 5 Mph.

Tonight 19 Aug Allamakee

Partly cloudy this Evening, then becoming mostly clear. Lows in the mid 50s. Light and variable Winds.

Graph Plots Open in Graphs

  • 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

    72 °F

  • Highest 10 August, 2026

    85.3 °F

Climate (2021–2026)

Prairie Du Chien Municipal Airport (12.4 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    40.5 °F

  • Average 2021–2026

    50 °F

  • Average High 2021–2026

    59.5 °F
Get WillyWeather+ to remove ads