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Fillmore, Illinois Weather Forecast
Fillmore, Illinois Weather
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Weather Forecast for Fillmore, Illinois : Douglas County
Issued: 9:46 pm CST Dec 25, 2025 Latitude: 39.7133661 Longitude: -88.3811627 View on Google Maps

MouseOver for Detail Forecast
Tonight Friday Saturday Sunday Monday Tuesday Wednesday New Year's Day
20% chance of on Tonight Morning Fog on Friday Partly Sunny on Saturday 90% chance of thunderstorms on Sunday Mostly Sunny on Monday Mostly Sunny on Tuesday Mostly Sunny on Wednesday Mostly Sunny on New Year's Day
Low: 50°F High: 65°F High: 60°F High: 65°F High: 25°F High: 30°F High: 35°F High: 30°F
Low: 41°F Low: 53°F Low: 18°F Low: 14°F Low: 20°F Low: 18°F  
Fog Morning Fog Partly Sunny Thunderstorms Mostly Sunny Mostly Sunny Mostly Sunny Mostly Sunny
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Current Conditions at
MATTOON - (KMTO)
55°
Cloudy
Fog
as of 10:01 PM CST
Rel. Humidity: 100%
Dew Point: 55°F
Visibility: 1/2 Miles
Pressure: 29.92 in.
Flight Rule: IFR
Wind Data
8 MPH
150° Southeast
Current Conditions at
CHAMPAIGN - (KCMI)
48°
Feels like 42°F
Cloudy
Fog
as of 10:13 PM CST
Rel. Humidity: 100%
Dew Point: 48°F
Visibility: 1/4 Miles
Pressure: 29.92 in.
Flight Rule: IFR
Wind Data
13 MPH
100° East
Current Conditions at
DECATUR - (KDEC)
52°
Cloudy
Fog
as of 9:54 PM CST
Rel. Humidity: 100%
Dew Point: 52°F
Visibility: 1/2 Miles
Pressure: 29.89 in.
Flight Rule: IFR
Wind Data
12 MPH
130° Southeast
Current Conditions at
EDGAR COUNTY ARPT - (KPRG)
50°
Cloudy
Mist
as of 10:15 PM CST
Rel. Humidity: 100%
Dew Point: 50°F
Visibility: 1 1/4 Miles
Pressure: 29.94 in.
Flight Rule: LIFR
Wind Data
8 MPH
120° Southeast
Cloud Level(s): Solid Overcast at 300ft
20% chance of Tonight Tonight... A chance of drizzle, mainly between 3am and 4am. Areas of dense fog. Otherwise, mostly cloudy, with a low around 50. East southeast wind 10 to 13 mph becoming south southwest after midnight. Winds could gust as high as 21 mph.
Morning Fog on Friday Friday... Patchy fog before 7am. Otherwise, partly sunny, with a high near 65. South southwest wind 9 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 24 mph.
Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 41. Northwest wind around 6 mph becoming calm.
Partly Sunny on Saturday Saturday... Partly sunny, with a high near 60. Southeast wind 5 to 11 mph, with gusts as high as 18 mph.
40% chance of rain Saturday Night Saturday Night... A 40 percent chance of rain after midnight. Cloudy, with a low around 53. South southwest wind around 11 mph, with gusts as high as 18 mph.
90% chance of thunderstorms Sunday Sunday... Rain likely, then rain and possibly a thunderstorm after noon. High near 65. South southwest wind 10 to 17 mph becoming west in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
70% chance of rain Sunday Night Sunday Night... Rain likely before midnight. Mostly cloudy, with a low around 18. Blustery, with a west northwest wind 15 to 23 mph, with gusts as high as 33 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Mostly Sunny on Monday Monday... Mostly sunny, with a high near 25. Blustery.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 14.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 30.
Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 20.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 35.
Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 18.
Mostly Sunny on New Year's Day New Year's Day... Mostly sunny, with a high near 30.
Current Radar Image


Sun Almanac for Fillmore, Illinois
Sunrise: 07:13 AM
Sunset: 4:35 PM
Civil Sunrise:06:43 AM
Civil Sunset: 5:05 PM
Nautical Sunrise: 06:09 AM
Nautical Sunset: 5:39 PM
Astro Sunrise: 05:36 AM
Astro Sunset: 6:12 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.