| NWS Forecast for: Jefferson IA Issued by: National Weather Service Des Moines, IA Last Update: 5:16 pm CDT Aug 11, 2026 |  |
Tonight: A 10 percent chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 69. East southeast wind around 6 mph becoming light and variable. Wednesday: A 40 percent chance of showers and thunderstorms, mainly before 9am. Partly sunny, with a high near 87. Heat index values as high as 100. East wind 5 to 8 mph. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. Wednesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3am. Increasing clouds, with a low around 67. East northeast wind around 6 mph becoming north northwest after midnight. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible. Thursday: Showers and possibly a thunderstorm before 10am, then showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. High near 80. East wind 5 to 8 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible. Thursday Night: Showers and possibly a thunderstorm. Low around 65. East wind 6 to 9 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible. Friday: A 50 percent chance of showers and thunderstorms, mainly before 1pm. Cloudy, with a high near 81. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. Friday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 68. Chance of precipitation is 60%. Saturday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 85. Saturday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. Chance of precipitation is 60%. Sunday: Partly sunny, with a high near 79. Sunday Night: Partly cloudy, with a low around 61. Monday: Partly sunny, with a high near 78. Monday Night: Mostly cloudy, with a low around 62. Tuesday: Partly sunny, with a high near 82. | |
| Jefferson IA 42.03°N 94.38°W | |
Visit your local NWS office at: https://www.weather.gov/desmoines |
