Weather forecast for: Chillicothe IL
Last Update: 7:36 am CDT Sep 12, 2026
Today: Sunny, with a high near 88. Light and variable wind becoming west 5 to 7 mph in the morning.
Tonight: Partly cloudy, with a low around 62. Northwest wind around 5 mph becoming calm in the evening.
Sunday: A slight chance of showers between noon and 1pm, then a chance of showers and thunderstorms after 1pm. Increasing clouds, with a high near 77. North wind 3 to 8 mph. Chance of precipitation is 40%.
Sunday Night: Partly cloudy, with a low around 56. North northeast wind 3 to 5 mph.
Monday: Mostly sunny, with a high near 78. East southeast wind 5 to 11 mph, with gusts as high as 20 mph.
Monday Night: A 30 percent chance of showers after 1am. Partly cloudy, with a low around 69. Southeast wind 11 to 14 mph, with gusts as high as 24 mph.
Tuesday: A 50 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 88. South wind 7 to 11 mph becoming west in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night: Showers and possibly a thunderstorm. Low around 66. Chance of precipitation is 80%.
Wednesday: Showers likely. Mostly cloudy, with a high near 84. Chance of precipitation is 70%.
Wednesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.
Thursday: A chance of showers. Mostly cloudy, with a high near 81.
Thursday Night: A chance of showers. Mostly cloudy, with a low around 61.
Friday: A chance of showers. Mostly sunny, with a high near 80.
WeatherWorld.com
City of Chillicothe, IL
