Weather forecast for: Sumner IA
Last Update: 12:12 pm CDT Sep 25, 2026
This Afternoon: Mostly cloudy, with a high near 68. Southeast wind around 8 mph.
Tonight: Mostly cloudy, with a low around 55. East southeast wind 5 to 8 mph.
Saturday: A 40 percent chance of showers, mainly after 11am. Mostly cloudy, with a high near 59. Southeast wind 9 to 13 mph, with gusts as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night: Showers likely, mainly after 1am. Mostly cloudy, with a low around 55. Southeast wind 7 to 11 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday: A 30 percent chance of showers before 1pm. Mostly cloudy, with a high near 64. Southeast wind 5 to 7 mph. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night: Mostly cloudy, with a low around 56.
Monday: Partly sunny, with a high near 68.
Monday Night: Partly cloudy, with a low around 56.
Tuesday: Showers. High near 66. Chance of precipitation is 80%.
Tuesday Night: Showers likely, mainly before 1am. Mostly cloudy, with a low around 57. Chance of precipitation is 60%.
Wednesday: A 40 percent chance of showers. Partly sunny, with a high near 66.
Wednesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 56.
Thursday: A 40 percent chance of showers. Partly sunny, with a high near 66.