Weather forecast for: Barnum IA
Last Update: 1:42 am CDT Sep 27, 2026
Overnight: A chance of showers and thunderstorms. Patchy fog after 3am. Otherwise, cloudy, with a low around 59. South southeast wind around 6 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday: A slight chance of drizzle before 9am. Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 69. Light southeast wind.
Sunday Night: Mostly cloudy, with a low around 59. Calm wind.
Monday: Patchy fog before 8am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 71. Calm wind becoming south southeast around 6 mph in the afternoon.
Monday Night: Mostly cloudy, with a low around 58. South southeast wind 3 to 7 mph.
Tuesday: Showers likely, then showers and possibly a thunderstorm after 10am. High near 67. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night: Showers. Low around 59. Chance of precipitation is 80%.
Wednesday: Showers likely, mainly before 1pm. Cloudy, with a high near 69. Chance of precipitation is 60%.
Wednesday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 58.
Thursday: A 30 percent chance of showers before 1pm. Mostly cloudy, with a high near 67.
Thursday Night: Mostly cloudy, with a low around 52.
Friday: A 30 percent chance of showers. Mostly sunny, with a high near 63.
Friday Night: Partly cloudy, with a low around 52.
Saturday: Partly sunny, with a high near 64.