Weather forecast for: Ottumwa IA
Last Update: 1:26 pm CDT Sep 20, 2026
This Afternoon: A slight chance of drizzle. Patchy fog after 3pm. Otherwise, mostly cloudy, with a steady temperature around 68. Northeast wind 9 to 11 mph, with gusts as high as 21 mph.
Tonight: A 20 percent chance of showers after 2am. Patchy fog before 9pm, then patchy fog after 11pm. Otherwise, cloudy, with a low around 59. Northeast wind 7 to 9 mph, with gusts as high as 20 mph.
Monday: A 50 percent chance of showers, mainly after 1pm. Patchy fog before noon. Otherwise, cloudy, with a steady temperature around 62. East northeast wind 7 to 9 mph. New precipitation amounts of less than a tenth of an inch possible.
Monday Night: Showers likely, mainly before 8pm. Mostly cloudy, with a low around 54. Northeast wind around 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 63. Northeast wind around 8 mph.
Tuesday Night: Partly cloudy, with a low around 48.
Wednesday: Sunny, with a high near 65.
Wednesday Night: Mostly clear, with a low around 50.
Thursday: Partly sunny, with a high near 67.
Thursday Night: Mostly cloudy, with a low around 54.
Friday: A 30 percent chance of showers. Mostly cloudy, with a high near 71.
Friday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 57.
Saturday: A 30 percent chance of showers. Mostly cloudy, with a high near 72.