Weather forecast for: Chillicothe IL
Last Update: 11:36 pm CDT Sep 11, 2026
Overnight: Partly cloudy, with a low around 66. Calm wind.
Saturday: Sunny, with a high near 88. Calm wind becoming west 5 to 7 mph in the morning.
Saturday Night: Partly cloudy, with a low around 63. Northwest wind around 5 mph becoming calm in the evening.
Sunday: A 40 percent chance of showers after 1pm. Increasing clouds, with a high near 79. North northeast wind 3 to 7 mph.
Sunday Night: A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 59. North northeast wind 5 to 7 mph.
Monday: A 30 percent chance of showers before 1pm. Mostly sunny, with a high near 81. Southeast wind 7 to 11 mph, with gusts as high as 20 mph.
Monday Night: Partly cloudy, with a low around 69. South southeast wind 11 to 14 mph, with gusts as high as 23 mph.
Tuesday: A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 88.
Tuesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. Chance of precipitation is 70%.
Wednesday: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 80. Chance of precipitation is 70%.
Wednesday Night: Showers likely. Mostly cloudy, with a low around 64.
Thursday: A chance of showers. Mostly sunny, with a high near 80.
Thursday Night: A chance of showers. Mostly clear, with a low around 60.
Friday: A chance of showers. Mostly sunny, with a high near 76.
WeatherWorld.com
City of Chillicothe, IL
