Weather forecast for: Union IA
Last Update: 11:21 am CDT Sep 11, 2026
Today: Sunny, with a high near 81. South wind 8 to 14 mph, with gusts as high as 18 mph.
Tonight: A slight chance of showers and thunderstorms between 1am and 4am. Partly cloudy, with a low around 64. South wind 8 to 10 mph. Chance of precipitation is 20%.
Saturday: Mostly sunny, with a high near 80. Southwest wind 5 to 10 mph becoming north in the afternoon.
Saturday Night: Mostly clear, with a low around 55. North wind around 5 mph becoming calm in the evening.
Sunday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 72. Light northeast wind becoming east northeast 5 to 9 mph in the morning. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 57. Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.
Monday: Showers and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. High near 83. Breezy. Chance of precipitation is 80%.
Monday Night: Showers and possibly a thunderstorm. Low around 60. Breezy. Chance of precipitation is 80%.
Tuesday: A 50 percent chance of showers. Mostly cloudy, with a high near 71.
Tuesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 54.
Wednesday: A 50 percent chance of showers. Mostly cloudy, with a high near 72.
Wednesday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 58.
Thursday: A 30 percent chance of showers. Partly sunny, with a high near 76.
WeatherWorld.com
