Weather forecast for: Denison IA
Last Update: 1:51 pm CDT Sep 9, 2026
This Afternoon: Sunny, with a high near 81. North wind around 6 mph.
Tonight: Mostly clear, with a low around 54. Calm wind.
Thursday: Patchy fog between 8am and 9am. Otherwise, sunny, with a high near 79. Calm wind becoming south southeast around 5 mph.
Thursday Night: Clear, with a low around 58. Calm wind becoming south 5 to 7 mph after midnight.
Friday: Mostly sunny, with a high near 81. South wind 8 to 15 mph, with gusts as high as 25 mph.
Friday Night: A chance of showers, with thunderstorms also possible after 10pm. Partly cloudy, with a low around 62. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday: A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm. Mostly sunny, with a high near 74. Chance of precipitation is 20%.
Saturday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 55.
Sunday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 76. Chance of precipitation is 50%.
Sunday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.
Monday: Showers likely and possibly a thunderstorm. Partly sunny, with a high near 80. Breezy. Chance of precipitation is 70%.
Monday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 54.
Tuesday: Partly sunny, with a high near 69.
WeatherWorld.com
City of Denison, IA
