Weather forecast for: Marathon IA
Last Update: 7:38 pm CDT Sep 18, 2026
Tonight: A 50 percent chance of showers and thunderstorms. Patchy fog before 2am, then patchy fog after 3am. Otherwise, cloudy, with a low around 64. East southeast wind 5 to 10 mph becoming west after midnight.
Saturday: A chance of showers and thunderstorms before 1pm, then a slight chance of showers after 5pm. Areas of fog before 11am. Otherwise, cloudy, with a high near 72. North wind 5 to 10 mph. Chance of precipitation is 30%.
Saturday Night: A 30 percent chance of showers, mainly before 9pm. Cloudy, with a low around 57. North wind around 10 mph.
Sunday: A 20 percent chance of showers. Mostly cloudy, with a high near 66. North northeast wind around 15 mph, with gusts as high as 20 mph.
Sunday Night: A 50 percent chance of showers, mainly after 1am. Cloudy, with a low around 52. East northeast wind around 10 mph.
Monday: Showers likely, mainly before 1pm. Cloudy, with a high near 59. East northeast wind around 10 mph. Chance of precipitation is 60%.
Monday Night: Mostly cloudy, with a low around 48.
Tuesday: Partly sunny, with a high near 61.
Tuesday Night: Partly cloudy, with a low around 45.
Wednesday: Mostly sunny, with a high near 65.
Wednesday Night: Mostly cloudy, with a low around 49.
Thursday: Partly sunny, with a high near 66.
Thursday Night: Mostly cloudy, with a low around 52.
Friday: Partly sunny, with a high near 68.
WeatherWorld.com
