Weather forecast for: Sumner IA
Last Update: 1:43 am CDT Sep 24, 2026
Overnight: Mostly cloudy, with a steady temperature around 53. East southeast wind around 6 mph.
Thursday: A 10 percent chance of showers after 5pm. Mostly cloudy, with a high near 66. Southeast wind around 7 mph.
Thursday Night: Showers likely, mainly between 11pm and 4am. Cloudy, with a low around 57. Light east wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Friday: A chance of showers before noon, then a slight chance of showers after 1pm. Cloudy, with a high near 66. East wind 3 to 7 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night: Mostly cloudy, with a low around 55. East southeast wind 6 to 8 mph.
Saturday: Showers likely, mainly after 1pm. Cloudy, with a high near 63. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 55.
Sunday: A 30 percent chance of showers before 1pm. Mostly cloudy, with a high near 66.
Sunday Night: Mostly cloudy, with a low around 53.
Monday: Partly sunny, with a high near 69.
Monday Night: Mostly cloudy, with a low around 56.
Tuesday: Showers likely. Mostly cloudy, with a high near 66. Breezy. Chance of precipitation is 60%.
Tuesday Night: Showers likely. Mostly cloudy, with a low around 57. Breezy. Chance of precipitation is 60%.
Wednesday: A 50 percent chance of showers. Mostly cloudy, with a high near 64. Breezy.
WeatherWorld.com
