Chillicothe, IL Weather Forecast
Local 7-day forecast
Partly Sunny then Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Chillicothe, IL in one place.
A chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 87. Southwest wind 5 to 8 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter 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: Jul 8, 2026 1:41 PM CDT.
The active forecast window currently covers Jul 9 to Jul 14, 2026 for Chillicothe, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 9 to Jul 14, 2026
- Latest sync
- Jul 8, 2026 1:41 PM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Chillicothe
Tuesday looks like the warmest upcoming period in Chillicothe at 90 degrees F.
Friday Night is the coolest period ahead with temperatures near 66 degrees F.
The strongest winds are forecast for Thursday at about 5 to 8 mph SW.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 8, 2026 1:41 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
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 68. North northwest wind 0 to 7 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 84. North northeast wind 0 to 3 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. East northeast wind around 3 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of rain showers before 7am, then a chance of showers and thunderstorms. Partly sunny, with a high near 85. East northeast wind 2 to 6 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 66. Chance of precipitation is 40%.
Sunny, with a high near 86.
Mostly clear, with a low around 67.
Sunny, with a high near 89.
Mostly clear, with a low around 69.
Sunny, with a high near 90.
Mostly clear, with a low around 70.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Jul 9
|
Partly Sunny then Chance Showers And Thunderstorms
|
87°F |
5 to 8 mph
SW
|
|
Thursday Night
Jul 9
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
68°F |
0 to 7 mph
NNW
|
|
Friday
Jul 10
|
Chance Rain Showers
|
84°F |
0 to 3 mph
NNE
|
|
Friday Night
Jul 10
|
Chance Showers And Thunderstorms
|
66°F |
3 mph
ENE
|
|
Saturday
Jul 11
|
Chance Showers And Thunderstorms
|
85°F |
2 to 6 mph
ENE
|
|
Saturday Night
Jul 11
|
Chance Showers And Thunderstorms
|
66°F |
1 to 5 mph
ENE
|
|
Sunday
Jul 12
|
Sunny
|
86°F |
1 to 5 mph
NE
|
|
Sunday Night
Jul 12
|
Mostly Clear
|
67°F |
0 to 3 mph
NNE
|
|
Monday
Jul 13
|
Sunny
|
89°F |
3 mph
NNW
|
|
Monday Night
Jul 13
|
Mostly Clear
|
69°F |
2 mph
W
|
|
Tuesday
Jul 14
|
Sunny
|
90°F |
1 to 5 mph
W
|
|
Tuesday Night
Jul 14
|
Mostly Clear
|
70°F |
3 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Chillicothe.