Chillicothe, IL Weather Forecast
Local 7-day forecast
Mostly Sunny then Showers And Thunderstorms Likely
Track current conditions, temperature changes, wind, and the full daily outlook for Chillicothe, IL in one place.
Showers and thunderstorms likely after 1pm. Mostly sunny, with a high near 88. South southwest wind 10 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. 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: Jun 10, 2026 10:51 AM CDT.
The active forecast window currently covers Jun 10 to Jun 16, 2026 for Chillicothe, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 10 to Jun 16, 2026
- Latest sync
- Jun 10, 2026 10:51 AM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Chillicothe
Thursday looks like the warmest upcoming period in Chillicothe at 89 degrees F.
Monday Night is the coolest period ahead with temperatures near 56 degrees F.
The strongest winds are forecast for Thursday at about 6 to 20 mph SSW.
Precipitation is mentioned in 11 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 10, 2026 10:51 AM CDT
- Coverage
- 7 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
Showers and thunderstorms likely before 4am. Mostly cloudy, with a low around 70. South southwest wind 6 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Showers and thunderstorms likely after 10am. Partly sunny, with a high near 89. South southwest wind 6 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Showers and thunderstorms before 1am. Partly cloudy, with a low around 60. West wind 5 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Sunny, with a high near 82. West wind 5 to 10 mph, with gusts as high as 20 mph.
Mostly clear, with a low around 61. Southwest wind 2 to 7 mph.
Sunny, with a high near 86. South southwest wind 5 to 12 mph, with gusts as high as 21 mph.
Showers and thunderstorms likely after 7pm. Mostly cloudy, with a low around 64. Chance of precipitation is 70%.
Showers and thunderstorms likely. Partly sunny, with a high near 78. Chance of precipitation is 70%.
A slight chance of rain showers. Partly cloudy, with a low around 57.
A slight chance of rain showers. Mostly sunny, with a high near 76.
A slight chance of rain showers before 7pm. Partly cloudy, with a low around 56.
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 78.
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 57.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Jun 10
|
Mostly Sunny then Showers And Thunderstorms Likely
|
88°F |
10 to 17 mph
SSW
|
|
Tonight
Jun 10
|
Showers And Thunderstorms Likely
|
70°F |
6 to 16 mph
SSW
|
|
Thursday
Jun 11
|
Showers And Thunderstorms Likely
|
89°F |
6 to 20 mph
SSW
|
|
Thursday Night
Jun 11
|
Showers And Thunderstorms
|
60°F |
5 to 18 mph
W
|
|
Friday
Jun 12
|
Sunny
|
82°F |
5 to 10 mph
W
|
|
Friday Night
Jun 12
|
Mostly Clear
|
61°F |
2 to 7 mph
SW
|
|
Saturday
Jun 13
|
Sunny
|
86°F |
5 to 12 mph
SSW
|
|
Saturday Night
Jun 13
|
Showers And Thunderstorms Likely
|
64°F |
5 to 8 mph
WNW
|
|
Sunday
Jun 14
|
Showers And Thunderstorms Likely
|
78°F |
7 to 10 mph
NNW
|
|
Sunday Night
Jun 14
|
Slight Chance Rain Showers
|
57°F |
2 to 9 mph
NNE
|
|
Monday
Jun 15
|
Slight Chance Rain Showers
|
76°F |
2 to 6 mph
N
|
|
Monday Night
Jun 15
|
Slight Chance Rain Showers then Partly Cloudy
|
56°F |
1 to 6 mph
WNW
|
|
Tuesday
Jun 16
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
78°F |
2 to 8 mph
WSW
|
|
Tuesday Night
Jun 16
|
Slight Chance Showers And Thunderstorms
|
57°F |
2 to 7 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Chillicothe.