Chillicothe, Illinois Weather
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Weather Forecast for Chillicothe, Illinois : Peoria County
Issued: 5:25 am CDT Sep 16, 2025 Latitude: 40.9222589 Longitude: -89.4862025 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Wednesday Thursday Friday Saturday Sunday Monday
Sunny on Today Mostly Clear on Tonight Sunny on Wednesday Sunny on Thursday 30% chance of on Friday 40% chance of thunderstorms on Saturday 20% chance of on Sunday 20% chance of on Monday
High: 91°F Low: 59°F High: 89°F High: 92°F High: 86°F High: 83°F High: 84°F High: 85°F
Low: 60°F Low: 64°F Low: 63°F Low: 64°F Low: 66°F  
Sunny Mostly Clear Sunny Sunny Partly Sunny Thunderstorms Partly Sunny Partly Sunny
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Current Conditions at
LACON/MARSHALL COUNTY - (KC75)
59°
Clear
as of 4:55 AM CDST
Rel. Humidity: 87%
Dew Point: 55°F
Visibility: 10 Miles
Pressure: 30.17 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
PEORIA - (KPIA)
64°
Clear
as of 4:54 AM CDST
Rel. Humidity: 77%
Dew Point: 57°F
Visibility: 10 Miles
Pressure: 30.16 in.
Flight Rule: VFR
Wind Data
7 MPH
060° Northeast
Cloud Level(s): Clear
Current Conditions at
PERU - (KVYS)
61°
Clear
Mist
as of 4:55 AM CDST
Rel. Humidity: 93%
Dew Point: 59°F
Visibility: 5 Miles
Pressure: 30.19 in.
Flight Rule: MVFR
Wind Data
5 MPH
040° Northeast
Cloud Level(s): Clear
Current Conditions at
BLOOMINGTON - (KBMI)
57°
Clear
as of 4:56 AM CDST
Rel. Humidity: 93%
Dew Point: 55°F
Visibility: 10 Miles
Pressure: 30.18 in.
Flight Rule: VFR
Wind Data
6 MPH
060° Northeast
Cloud Level(s): Clear
Sunny on Today Today... Sunny, with a high near 91. East wind 3 to 6 mph.
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 59. Northeast wind around 6 mph becoming calm in the evening.
Sunny on Wednesday Wednesday... Sunny, with a high near 89. Calm wind.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 60. Calm wind.
Sunny on Thursday Thursday... Sunny, with a high near 92. Light southeast wind.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 64. East southeast wind around 5 mph becoming calm after midnight.
30% chance of Friday Friday... A 30 percent chance of showers. Partly sunny, with a high near 86. Calm wind becoming south southeast around 6 mph in the afternoon.
40% chance of rain Friday Night Friday Night... A 40 percent chance of showers. Mostly cloudy, with a low around 63.
40% chance of thunderstorms Saturday Saturday... A chance of showers and thunderstorms. Mostly sunny, with a high near 83. Chance of precipitation is 40%.
30% chance of rain Saturday Night Saturday Night... A 30 percent chance of showers before 1am. Partly cloudy, with a low around 64.
20% chance of Sunday Sunday... A chance of showers. Partly sunny, with a high near 84.
20% chance of rain Sunday Night Sunday Night... A chance of showers. Mostly cloudy, with a low around 66.
20% chance of Monday Monday... A chance of showers. Partly sunny, with a high near 85.
Current Radar Image


Sun Almanac for Chillicothe, Illinois
Sunrise: 06:40 AM
Sunset: 7:05 PM
Civil Sunrise:06:13 AM
Civil Sunset: 7:33 PM
Nautical Sunrise: 05:40 AM
Nautical Sunset: 8:05 PM
Astro Sunrise: 05:07 AM
Astro Sunset: 8:38 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.