Chillicothe, IL Weather Forecast
Local 7-day forecast
Clear
Track current conditions, temperature changes, wind, and the full daily outlook for Chillicothe, IL in one place.
Clear, with a low around 59. South wind around 7 mph.
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: Oct 10, 2026 7:49 AM CDT.
The active forecast window currently covers Oct 10 to Oct 16, 2026 for Chillicothe, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 10 to Oct 16, 2026
- Latest sync
- Oct 10, 2026 7:49 AM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Chillicothe
Columbus Day looks like the warmest upcoming period in Chillicothe at 86 degrees F.
Thursday Night is the coolest period ahead with temperatures near 50 degrees F.
The strongest winds are forecast for Friday at about 13 to 17 mph WNW.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 10, 2026 7:49 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
Partly sunny, with a high near 82. South southeast wind 6 to 9 mph, with gusts as high as 16 mph.
Partly cloudy, with a low around 56. East southeast wind 0 to 6 mph.
Sunny, with a high near 81. South southeast wind around 2 mph.
Mostly clear, with a low around 63. South wind 1 to 6 mph.
Mostly sunny, with a high near 86. Southwest wind 7 to 10 mph, with gusts as high as 18 mph.
Mostly clear, with a low around 66. Southwest wind around 8 mph.
Sunny, with a high near 79.
A slight chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Mostly clear, with a low around 56. Chance of precipitation is 40%.
Showers and thunderstorms likely. Mostly sunny, with a high near 71.
A chance of rain showers before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 54.
Showers and thunderstorms likely. Partly sunny, with a high near 71.
A chance of rain showers. Mostly cloudy, with a low around 50.
A chance of rain showers before 1pm. Mostly sunny, with a high near 64.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Oct 10
|
Clear
|
59°F |
7 mph
S
|
|
Saturday
Oct 10
|
Partly Sunny
|
82°F |
6 to 9 mph
SSE
|
|
Saturday Night
Oct 10
|
Partly Cloudy
|
56°F |
0 to 6 mph
ESE
|
|
Sunday
Oct 11
|
Sunny
|
81°F |
2 mph
SSE
|
|
Sunday Night
Oct 11
|
Mostly Clear
|
63°F |
1 to 6 mph
S
|
|
Columbus Day
Oct 12
|
Mostly Sunny
|
86°F |
7 to 10 mph
SW
|
|
Monday Night
Oct 12
|
Mostly Clear
|
66°F |
8 mph
SW
|
|
Tuesday
Oct 13
|
Sunny
|
79°F |
9 mph
NW
|
|
Tuesday Night
Oct 13
|
Slight Chance Showers And Thunderstorms
|
56°F |
7 mph
NNE
|
|
Wednesday
Oct 14
|
Showers And Thunderstorms Likely
|
71°F |
6 to 9 mph
ENE
|
|
Wednesday Night
Oct 14
|
Showers And Thunderstorms Likely
|
54°F |
9 mph
E
|
|
Thursday
Oct 15
|
Showers And Thunderstorms Likely
|
71°F |
12 mph
S
|
|
Thursday Night
Oct 15
|
Chance Rain Showers
|
50°F |
8 to 12 mph
WSW
|
|
Friday
Oct 16
|
Chance Rain Showers
|
64°F |
13 to 17 mph
WNW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Chillicothe.