Weather forecast for: Harpers Ferry IA
Last Update: 6:26 am CDT Aug 11, 2026
Today: Showers and thunderstorms likely, mainly before 1pm. Some of the storms could produce heavy rainfall. Patchy fog before 7am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 83. Calm wind becoming east around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Tonight: Mostly cloudy, with a low around 66. Calm wind.
Wednesday: A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 11am. Partly sunny, with a high near 86. Calm wind. Chance of precipitation is 20%.
Wednesday Night: Increasing clouds, with a low around 66. Calm wind.
Thursday: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 82. Calm wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night: Mostly cloudy, with a low around 62. Calm wind.
Friday: A 20 percent chance of showers after 1pm. Partly sunny, with a high near 78. East wind 3 to 7 mph.
Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 60. East wind 5 to 7 mph. Chance of precipitation is 70%.
Saturday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 79. Southeast wind 5 to 7 mph. Chance of precipitation is 70%.
Saturday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Sunday: A 20 percent chance of showers. Mostly cloudy, with a high near 79. Calm wind becoming northwest around 5 mph in the afternoon.
Sunday Night: Partly cloudy, with a low around 61. Calm wind.
Monday: Mostly sunny, with a high near 79. Calm wind.
WeatherWorld.com
