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Clarksville, Illinois Weather Forecast
Clarksville, Illinois Weather
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Weather Forecast for Clarksville, Illinois : Clark County
Issued: 3:36 am CST Dec 23, 2025 Latitude: 39.451702 Longitude: -87.7978078 View on Google Maps

MouseOver for Detail Forecast
Overnight Tuesday Wednesday Christmas Day Friday Saturday Sunday Monday
Mostly Cloudy on Overnight Partly Sunny on Tuesday Mostly Cloudy on Wednesday Morning Fog on Christmas Day Mostly Sunny on Friday Mostly Cloudy on Saturday Mostly Sunny on Sunday Sunny on Monday
Low: 43°F High: 59°F High: 57°F High: 59°F High: 67°F High: 67°F High: 40°F High: 24°F
Low: 34°F Low: 50°F Low: 51°F Low: 47°F Low: 32°F Low: 13°F  
Mostly Cloudy Partly Sunny Mostly Cloudy Morning Fog Mostly Sunny Mostly Cloudy Mostly Sunny Sunny
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Current Conditions at
EDGAR COUNTY ARPT - (KPRG)
46°
Feels like 40°F
Clear
as of 3:35 AM CST
Rel. Humidity: 100%
Dew Point: 46°F
Visibility: 7 Miles
Pressure: 30.08 in.
Flight Rule: VFR
Wind Data
13 MPH
220° Southwest
Cloud Level(s): Clear
Current Conditions at
MATTOON - (KMTO)
46°
Feels like 41°F
Clear
as of 2:53 AM CST
Rel. Humidity: 93%
Dew Point: 45°F
Visibility: 8 Miles
Pressure: 30.08 in.
Flight Rule: VFR
Wind Data
10 MPH
200° South
Cloud Level(s): Clear
Current Conditions at
TERRE HAUTE - (KHUF)
52°
Cloudy
as of 4:20 AM EST
Rel. Humidity: 87%
Dew Point: 48°F
Visibility: 9 Miles
Pressure: 30.10 in.
Flight Rule: MVFR
Wind Data
12 MPH
230° Southwest
Cloud Level(s): Solid Overcast at 1000ft
Current Conditions at
MOUNT CARMEL MUNI - (KAJG)
52°
Partly Cloudy
as of 3:35 AM CST
Rel. Humidity: 93%
Dew Point: 50°F
Visibility: 7 Miles
Pressure: 30.13 in.
Flight Rule: VFR
Wind Data
6 MPH
210° Southwest
Cloud Level(s): Scattered at 1200ft
Mostly Cloudy on Overnight Overnight... Mostly cloudy, with a low around 43. Southwest wind around 10 mph, with gusts as high as 18 mph.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 59. Southwest wind 6 to 11 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.

Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 34. Light and variable wind becoming east northeast around 6 mph after midnight.

Mostly Cloudy on Wednesday Wednesday... Patchy drizzle after 3pm. Mostly cloudy, with a high near 57. East wind 6 to 10 mph becoming south southeast in the afternoon. Winds could gust as high as 16 mph.

50% chance of rain Wednesday Night Wednesday Night... Patchy drizzle and fog with a chance of rain before midnight, then a chance of rain after midnight. Mostly cloudy, with a low around 50. South southeast wind 5 to 7 mph becoming west northwest after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 50%.

Morning Fog on Christmas Day Christmas Day... Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 59. Northwest wind 5 to 7 mph becoming east in the afternoon.

40% chance of rain Thursday Night Thursday Night... A 40 percent chance of rain. Mostly cloudy, with a low around 51. East wind 6 to 11 mph becoming south after midnight. Winds could gust as high as 20 mph.

Mostly Sunny on Friday Friday... Mostly sunny, with a high near 67.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 47.

Mostly Cloudy on Saturday Saturday... Mostly cloudy, with a high near 67.

Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around 32.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 40. Breezy.

Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 13.

Sunny on Monday Monday... Sunny, with a high near 24.

Current Radar Image


Sun Almanac for Clarksville, Illinois
Sunrise: 07:09 AM
Sunset: 4:32 PM
Civil Sunrise:06:39 AM
Civil Sunset: 5:02 PM
Nautical Sunrise: 06:05 AM
Nautical Sunset: 5:36 PM
Astro Sunrise: 05:32 AM
Astro Sunset: 6:09 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.