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Fillmore, Illinois Weather Forecast
Fillmore, Illinois Weather
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Weather Forecast for Fillmore, Illinois : Douglas County
Issued: 5:02 pm CST Dec 26, 2025 Latitude: 39.7133661 Longitude: -88.3811627 View on Google Maps

MouseOver for Detail Forecast
Tonight Saturday Sunday Monday Tuesday Wednesday New Year's Day Friday
Patchy Fog on Tonight Morning Fog on Saturday 90% chance of rain on Sunday Partly Sunny on Monday Mostly Sunny on Tuesday Partly Sunny on Wednesday Mostly Sunny on New Year's Day Mostly Sunny on Friday
Low: 42°F High: 56°F High: 68°F High: 24°F High: 30°F High: 34°F High: 23°F High: 24°F
Low: 52 °F Low: 17°F Low: 13°F Low: 21°F Low: 13°F Low: 8°F  
Patchy Fog Morning Fog Rain Partly Sunny Mostly Sunny Partly Sunny Mostly Sunny Mostly Sunny
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Current Conditions at
MATTOON - (KMTO)
50°
Cloudy
as of 7:53 PM CST
Rel. Humidity: 87%
Dew Point: 46°F
Visibility: 10 Miles
Pressure: 29.90 in.
Flight Rule: MVFR
Wind Data
8 MPH
330° Northwest
Cloud Level(s): Solid Overcast at 1400ft
Current Conditions at
CHAMPAIGN - (KCMI)
46°
Cloudy
as of 8:05 PM CST
Rel. Humidity: 93%
Dew Point: 45°F
Visibility: 10 Miles
Pressure: 29.91 in.
Flight Rule: IFR
Wind Data
8 MPH
340° North
Cloud Level(s): Solid Overcast at 900ft
Current Conditions at
DECATUR - (KDEC)
48°
Cloudy
as of 7:54 PM CST
Rel. Humidity: 87%
Dew Point: 45°F
Visibility: 10 Miles
Pressure: 29.92 in.
Flight Rule: MVFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 1200ft
Current Conditions at
EDGAR COUNTY ARPT - (KPRG)
48°
Cloudy
as of 8:35 PM CST
Rel. Humidity: 81%
Dew Point: 43°F
Visibility: 10 Miles
Pressure: 29.93 in.
Flight Rule: MVFR
Wind Data
6 MPH
350° North
Cloud Level(s): Solid Overcast at 1200ft
Patchy Fog on Tonight Tonight... Patchy fog. Otherwise, mostly cloudy, with a low around 42. North wind around 6 mph becoming calm.
Morning Fog on Saturday Saturday... Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 56. Southeast wind 5 to 11 mph, with gusts as high as 20 mph.
40% chance of thunderstorms Saturday Night Saturday Night... A chance of rain between midnight and 3am, then a chance of rain and thunderstorms after 3am. Cloudy, with a temperature falling to near 52 by 8pm, then rising to around 59 during the remainder of the night. South wind 11 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
90% chance of rain Sunday Sunday... Rain. High near 68. South southwest wind 11 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
70% chance of rain Sunday Night Sunday Night... Rain likely before midnight. Mostly cloudy, with a low around 17. Blustery, with a west northwest wind 18 to 28 mph, with gusts as high as 37 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Partly Sunny on Monday Monday... Partly sunny, with a high near 24. Blustery, with a west northwest wind 22 to 29 mph, with gusts as high as 39 mph.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 13. West northwest wind 13 to 17 mph, with gusts as high as 24 mph.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 30.
Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 21.
Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 34.
Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 13.
Mostly Sunny on New Year's Day New Year's Day... Mostly sunny, with a high near 23.
Mostly Clear on Thursday Night Thursday Night... Mostly clear, with a low around 8.
Mostly Sunny on Friday Friday... Mostly sunny, with a high near 24.
Current Radar Image


Sun Almanac for Fillmore, Illinois
Sunrise: 07:13 AM
Sunset: 4:35 PM
Civil Sunrise:06:43 AM
Civil Sunset: 5:06 PM
Nautical Sunrise: 06:09 AM
Nautical Sunset: 5:40 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.