National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Prairie Du Chien Municipal Airport (KPDC)

Lat: 43.02°NLon: 91.12°WElev: 659ft.

Fog/Mist

67°F

19°C

Humidity 100%
Wind Speed Calm
Barometer 29.91 in
Dewpoint 67°F (19°C)
Visibility 2.00 mi
Last update 10 Aug 5:15 am CDT
Extended Forecast for

Harpers Ferry IA

  • Today

    Today: Areas of fog before 9am. Otherwise, cloudy during the morning, then mostly sunny during the afternoon, with a high near 86. Calm wind.

    High: 86 °F

    Areas Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 67. Calm wind.

    Low: 67 °F

    Partly Cloudy
    then Chance
    T-storms

  • Tuesday

    Tuesday: Showers and thunderstorms likely, mainly before noon. Mostly cloudy, with a high near 85. Calm wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Showers
    Likely then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 66. Calm wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 1pm. Partly sunny, with a high near 86. Calm wind. Chance of precipitation is 20%.

    High: 86 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 65. Calm wind.

    Low: 65 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 80. Calm wind. Chance of precipitation is 40%.

    High: 80 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 60. Calm wind.

    Low: 60 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 78. Calm wind becoming east around 6 mph in the morning.

    High: 78 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Today
Areas of fog before 9am. Otherwise, cloudy during the morning, then mostly sunny during the afternoon, with a high near 86. Calm wind.
Tonight
A 30 percent chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 67. Calm wind.
Tuesday
Showers and thunderstorms likely, mainly before noon. Mostly cloudy, with a high near 85. Calm wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 66. Calm wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 1pm. Partly sunny, with a high near 86. Calm wind. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 65. Calm wind.
Thursday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 80. Calm wind. Chance of precipitation is 40%.
Thursday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 60. Calm wind.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 78. Calm wind becoming east around 6 mph in the morning.
Friday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 59. East wind 3 to 5 mph.
Saturday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 78. Calm wind becoming southeast around 6 mph in the morning.
Saturday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Light west wind.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 77. Light northwest wind.
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ABOUT THIS FORECAST

 
Point Forecast:
Harpers Ferry IA
 43.2°N 91.14°W
Last Update:
5:02 am CDT Aug 10, 2026
Forecast Valid:
5am CDT Aug 10, 2026-6pm CDT Aug 16, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation