Weather forecast for: Harpers Ferry IA
Last Update: 1:36 pm CDT Aug 8, 2026
Tonight: A 30 percent chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 63. Calm wind.
Sunday: Showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms after 3pm. High near 83. Calm wind becoming south around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night: A 30 percent chance of showers and thunderstorms, mainly before 3am. Mostly cloudy, with a low around 66. Calm wind.
Monday: A 40 percent chance of showers and thunderstorms, mainly after 7am. Partly sunny, with a high near 84. Calm wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night: A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66. Calm wind. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday: A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly cloudy, with a high near 84. Calm wind.
Tuesday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 65. Calm wind.
Wednesday: A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 83. Light and variable wind.
Wednesday Night: Partly cloudy, with a low around 62. Calm wind.
Thursday: Partly sunny, with a high near 77. Light north wind.
Thursday Night: Partly cloudy, with a low around 58. Calm wind.
Friday: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 74. Light east wind.
Friday Night: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 57. Calm wind.
Saturday: A 20 percent chance of showers. Partly sunny, with a high near 73. Calm wind becoming east around 5 mph in the afternoon.