Chillicothe, IL Weather Forecast
Local 7-day forecast
Chance Showers And Thunderstorms then Partly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Chillicothe, IL in one place.
A chance of showers and thunderstorms before 9am. Partly sunny, with a high near 62. North northwest wind 6 to 9 mph, with gusts as high as 16 mph. Chance of precipitation is 50%. New rainfall amounts between a half and three quarters of an inch possible.
Local Weather Overview
This forecast page for Chillicothe, IL is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Apr 9, 2026 2:33 PM CDT.
The active forecast window currently covers Apr 10 to Apr 15, 2026 for Chillicothe, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 10 to Apr 15, 2026
- Latest sync
- Apr 9, 2026 2:33 PM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Chillicothe
Tuesday looks like the warmest upcoming period in Chillicothe at 83 degrees F.
Friday Night is the coolest period ahead with temperatures near 39 degrees F.
The strongest winds are forecast for Sunday at about 12 to 20 mph SSW.
Precipitation is mentioned in 11 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 9, 2026 2:33 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- ILX
- Radar station
- KILX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 39. Northeast wind around 6 mph.
A slight chance of rain showers after 1pm. Partly sunny, with a high near 63. East southeast wind 3 to 9 mph, with gusts as high as 16 mph.
A slight chance of rain showers before 7pm. Mostly cloudy, with a low around 56. South southeast wind 7 to 12 mph, with gusts as high as 22 mph.
A slight chance of rain showers between 7am and 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 75. South southwest wind 12 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 80. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Showers and thunderstorms likely. Mostly cloudy, with a high near 83.
Showers and thunderstorms likely. Mostly cloudy, with a low around 62.
Showers and thunderstorms likely. Partly sunny, with a high near 76.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 53.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Apr 10
|
Chance Showers And Thunderstorms then Partly Sunny
|
62°F |
6 to 9 mph
NNW
|
|
Friday Night
Apr 10
|
Mostly Clear
|
39°F |
6 mph
NE
|
|
Saturday
Apr 11
|
Partly Sunny then Slight Chance Rain Showers
|
63°F |
3 to 9 mph
ESE
|
|
Saturday Night
Apr 11
|
Slight Chance Rain Showers then Mostly Cloudy
|
56°F |
7 to 12 mph
SSE
|
|
Sunday
Apr 12
|
Chance Showers And Thunderstorms
|
75°F |
12 to 20 mph
SSW
|
|
Sunday Night
Apr 12
|
Chance Showers And Thunderstorms
|
62°F |
13 to 17 mph
SSW
|
|
Monday
Apr 13
|
Chance Showers And Thunderstorms
|
80°F |
12 to 15 mph
SSW
|
|
Monday Night
Apr 13
|
Chance Showers And Thunderstorms
|
66°F |
13 mph
SSW
|
|
Tuesday
Apr 14
|
Showers And Thunderstorms Likely
|
83°F |
12 to 16 mph
SSW
|
|
Tuesday Night
Apr 14
|
Showers And Thunderstorms Likely
|
62°F |
13 mph
SSW
|
|
Wednesday
Apr 15
|
Showers And Thunderstorms Likely
|
76°F |
12 to 16 mph
SW
|
|
Wednesday Night
Apr 15
|
Chance Showers And Thunderstorms
|
53°F |
7 to 12 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Chillicothe.