News Headlines
Hazardous Weather Conditions
Current conditions at
Marshall County Airport (KC75)
Lat: 41.02°NLon: 89.39°WElev: 545ft.
Overcast
69°F
21°C
| Humidity | 83% |
| Wind Speed | Calm |
| Barometer | 29.89 in |
| Dewpoint | 64°F (18°C) |
| Visibility | 10.00 mi |
| Last update | 13 Oct 10:15 pm CDT |
Extended Forecast for
Chillicothe IL
Tonight

Low: 64 °F
T-storms
LikelyWednesday
High: 69 °F
Chance
T-storms then
Slight Chance
ShowersWednesday Night
Low: 57 °F
Mostly Cloudy
then Chance
ShowersThursday

High: 70 °F
Showers
Thursday Night

Low: 46 °F
Showers
LikelyFriday

High: 58 °F
Mostly Sunny
and BreezyFriday Night

Low: 34 °F
Mostly Clear
then Patchy
FrostSaturday

High: 59 °F
Areas Frost
then SunnySaturday Night

Low: 40 °F
Clear
Detailed Forecast
Tonight
Showers and thunderstorms likely, mainly between midnight and 4am, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 64. Calm wind. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 69. Northeast wind 3 to 7 mph. Chance of precipitation is 40%.
Wednesday Night
A 30 percent chance of showers, mainly after 5am. Mostly cloudy, with a low around 57. East northeast wind 7 to 9 mph, with gusts as high as 17 mph.
Thursday
Showers. High near 70. East wind around 6 mph becoming southwest in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday Night
Showers likely before 1am. Mostly cloudy, with a low around 46. Northwest wind 7 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Mostly sunny, with a high near 58. Breezy, with a northwest wind 18 to 22 mph, with gusts as high as 33 mph.
Friday Night
Patchy frost after 5am. Otherwise, mostly clear, with a low around 34. North northwest wind 5 to 10 mph becoming light north after midnight. Winds could gust as high as 20 mph.
Saturday
Areas of frost before 8am. Otherwise, sunny, with a high near 59.
Saturday Night
Clear, with a low around 40.
Sunday
Sunny, with a high near 65.
Sunday Night
Partly cloudy, with a low around 46.
Monday
Partly sunny, with a high near 67.
Monday Night
Mostly cloudy, with a low around 48.
Tuesday
Mostly sunny, with a high near 73.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
Chillicothe IL
40.89°N 89.52°W (Elev. 541 ft)
40.89°N 89.52°W (Elev. 541 ft)
10:36 pm CDT Oct 13, 2026
10pm CDT Oct 13, 2026-6pm CDT Oct 20, 2026



