Harpers Ferry Weather Forecast

    • 72
    • 94

    Increasing Clouds

    • 70
    • 94

    Slight Chance Thunderstorms

    • 71
    • 94

    Chance Thunderstorms

    • 67
    • 92

    Mostly Sunny

    • 69
    • 90

    Slight Chance Rain Showers

    • 65
    • 91

    Slight Chance Thunderstorms

Today 15 Jul Allamakee

Patchy fog this morning. Mostly sunny. Hot with Highs in the lower 90s. Light Winds.

Tonight 15 Jul Allamakee

Partly cloudy. Humid with Lows in the lower 70s. Light and variable Winds. Heat index Values up to 100 early in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Harpers Ferry Temperature Statistics

July Temperature

Prairie Du Chien Municipal Airport (12.4 miles)

  • Lowest 12 July, 2026

    62.1 °F

  • Average July

    75.4 °F

  • Highest 1 July, 2026

    89.6 °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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