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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 am CST Jan 21, 2026 Latitude: 39.451702 Longitude: -87.7978078 View on Google Maps

MouseOver for Detail Forecast
Overnight Wednesday Thursday Friday Saturday Sunday Monday Tuesday
Mostly Cloudy on Overnight Mostly Cloudy on Wednesday Partly Sunny on Thursday Mostly Cloudy on Friday 30% chance of snow on Saturday Partly Sunny on Sunday Sunny on Monday Mostly Sunny on Tuesday
Low: 22°F High: 42°F High: 33°F High: 11°F High: 13°F High: 18°F High: 18°F High: 27°F
Low: 20°F Low: 5 °F Low: -1°F Low: 7°F Low: 3°F Low: 5°F  
Mostly Cloudy Mostly Cloudy Partly Sunny Mostly Cloudy Snow Partly Sunny Sunny Mostly Sunny
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Current Conditions at
EDGAR COUNTY ARPT - (KPRG)
28°
Feels like 15°F
Clear
as of 3:15 AM CST
Rel. Humidity: 46%
Dew Point: 10°F
Visibility: 10 Miles
Pressure: 30.10 in.
Flight Rule: VFR
Wind Data
20 MPH
Gust: 24 MPH
200° South
Cloud Level(s): Clear
Current Conditions at
MATTOON - (KMTO)
28°
Feels like 18°F
Clear
as of 2:53 AM CST
Rel. Humidity: 46%
Dew Point: 10°F
Visibility: 10 Miles
Pressure: 30.09 in.
Flight Rule: VFR
Wind Data
12 MPH
Gust: 31 MPH
170° South
Cloud Level(s): Clear
Current Conditions at
TERRE HAUTE - (KHUF)
28°
Feels like 17°F
Clear
as of 3:53 AM EST
Rel. Humidity: 50%
Dew Point: 12°F
Visibility: 10 Miles
Pressure: 30.16 in.
Flight Rule: VFR
Wind Data
13 MPH
180° South
Cloud Level(s): Clear
Current Conditions at
MOUNT CARMEL MUNI - (KAJG)
32°
Cloudy
as of 3:15 AM CST
Rel. Humidity: 46%
Dew Point: 14°F
Visibility: 10 Miles
Pressure: 30.16 in.
Flight Rule: VFR
Wind Data
8 MPH
160° South
Cloud Level(s): Solid Overcast at 4800ft
Mostly Cloudy on Overnight Overnight... Mostly cloudy, with a low around 22. South wind around 15 mph, with gusts as high as 24 mph.

Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, then gradually becoming sunny, with a high near 42. West southwest wind 11 to 18 mph, with gusts as high as 29 mph.

Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 20. West southwest wind 9 to 16 mph, with gusts as high as 25 mph.

Partly Sunny on Thursday Thursday... Partly sunny, with a high near 33. West wind 3 to 8 mph.

Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 5. Light and variable wind becoming north 10 to 15 mph in the evening. Winds could gust as high as 23 mph.

Mostly Cloudy on Friday Friday... Mostly cloudy, with a high near 11. North wind 11 to 15 mph, with gusts as high as 24 mph.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around -1. North northeast wind around 10 mph, with gusts as high as 18 mph.

30% chance of snow Saturday Saturday... A 30 percent chance of snow after noon. Mostly cloudy, with a high near 13.

50% chance of snow Saturday Night Saturday Night... A 50 percent chance of snow. Mostly cloudy, with a low around 7.

Partly Sunny on Sunday Sunday... Partly sunny, with a high near 18.

Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 3.

Sunny on Monday Monday... Sunny, with a high near 18.

Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 5.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 27.

Current Radar Image


Sun Almanac for Clarksville, Illinois
Sunrise: 07:07 AM
Sunset: 4:58 PM
Civil Sunrise:06:38 AM
Civil Sunset: 5:28 PM
Nautical Sunrise: 06:05 AM
Nautical Sunset: 6:00 PM
Astro Sunrise: 05:33 AM
Astro Sunset: 6:32 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.