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Clarksville, Illinois Weather Forecast
Clarksville, Illinois Weather
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Weather Forecast for Clarksville, Illinois : Clark County
Issued: 3:16 pm CST Jan 6, 2026 Latitude: 39.451702 Longitude: -87.7978078 View on Google Maps

MouseOver for Detail Forecast
Tonight Wednesday Thursday Friday Saturday Sunday Monday Tuesday
Increasing Clouds on Tonight Mostly Cloudy on Wednesday 80% chance of rain on Thursday Mostly Cloudy on Friday 30% chance of rain on Saturday Mostly Sunny on Sunday Sunny on Monday Mostly Sunny on Tuesday
Low: 36°F High: 52°F High: 63°F High: 58°F High: 48°F High: 34°F High: 43°F High: 45°F
Low: 40°F Low: 53°F Low: 41°F Low: 24°F Low: 23°F Low: 29°F  
Increasing Clouds Mostly Cloudy Rain Mostly Cloudy Rain Mostly Sunny Sunny Mostly Sunny
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Current Conditions at
EDGAR COUNTY ARPT - (KPRG)
50°
Feels like 45°F
Cloudy
as of 3:55 PM CST
Rel. Humidity: 76%
Dew Point: 43°F
Visibility: 10 Miles
Pressure: 29.72 in.
Flight Rule: MVFR
Wind Data
12 MPH
280° West
Cloud Level(s): Solid Overcast at 2000ft
Current Conditions at
MATTOON - (KMTO)
54°
Clear
as of 3:53 PM CST
Rel. Humidity: 71%
Dew Point: 45°F
Visibility: 8 Miles
Pressure: 29.70 in.
Flight Rule: VFR
Wind Data
7 MPH
260° West
Cloud Level(s): Clear
Current Conditions at
TERRE HAUTE - (KHUF)
54°
Clear
as of 4:53 PM EST
Rel. Humidity: 71%
Dew Point: 45°F
Visibility: 10 Miles
Pressure: 29.71 in.
Flight Rule: VFR
Wind Data
8 MPH
270° West
Cloud Level(s): Clear
Current Conditions at
MOUNT CARMEL MUNI - (KAJG)
63°
Mostly Cloudy
as of 3:55 PM CST
Rel. Humidity: 55%
Dew Point: 46°F
Pressure: 29.71 in.
Wind Data
7 MPH
230° Southwest
Increasing Clouds on Tonight Tonight... Increasing clouds, with a low around 36. West northwest wind 5 to 8 mph, with gusts as high as 15 mph.

Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, then gradually becoming sunny, with a high near 52. Light and variable wind becoming south southwest 5 to 8 mph in the morning.

Increasing Clouds on Wednesday Night Wednesday Night... Increasing clouds, with a low around 40. South wind 7 to 9 mph, with gusts as high as 17 mph.

80% chance of rain Thursday Thursday... Showers, mainly after noon. High near 63. South southeast wind 9 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

80% chance of thunderstorms Thursday Night Thursday Night... Showers and possibly a thunderstorm before midnight, then a chance of showers. Low around 53. Breezy, with a south southwest wind 13 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

Mostly Cloudy on Friday Friday... Mostly cloudy, with a high near 58. West southwest wind 7 to 11 mph becoming north northeast in the afternoon. Winds could gust as high as 20 mph.

40% chance of rain Friday Night Friday Night... A 40 percent chance of rain. Mostly cloudy, with a low around 41. North northeast wind 6 to 10 mph becoming northwest after midnight. Winds could gust as high as 17 mph.

30% chance of rain Saturday Saturday... A 30 percent chance of rain before noon. Partly sunny, with a high near 48.

Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 24.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 34.

Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 23.

Sunny on Monday Monday... Sunny, with a high near 43.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 29.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 45.

Current Radar Image


Sun Almanac for Clarksville, Illinois
Sunrise: 07:12 AM
Sunset: 4:43 PM
Civil Sunrise:06:42 AM
Civil Sunset: 5:13 PM
Nautical Sunrise: 06:08 AM
Nautical Sunset: 5:46 PM
Astro Sunrise: 05:36 AM
Astro Sunset: 6:19 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.