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Clarksville, Illinois Weather Forecast
Clarksville, Illinois Weather
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Weather Forecast for Clarksville, Illinois : Clark County
Issued: 12:36 am CST Dec 12, 2025 Latitude: 39.451702 Longitude: -87.7978078 View on Google Maps

MouseOver for Detail Forecast
Overnight Friday Saturday Sunday Monday Tuesday Wednesday Thursday
90% chance of snow on Overnight 20% chance of snow on Friday 90% chance of snow on Saturday Sunny on Sunday Mostly Sunny on Monday Mostly Sunny on Tuesday Mostly Cloudy on Wednesday 20% chance of rain on Thursday
Low: 26°F High: 33°F High: 20°F High: 4 °F High: 23°F High: 35°F High: 45°F High: 49°F
Low: 16°F Low: -5°F Low: -8°F Low: 16°F Low: 29°F Low: 36°F  
Snow Snow Snow Sunny Mostly Sunny Mostly Sunny Mostly Cloudy Rain
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Current Conditions at
EDGAR COUNTY ARPT - (KPRG)
27°
Cloudy
Light Snow
as of 12:35 AM CST
Rel. Humidity: 100%
Dew Point: 27°F
Visibility: 1 Miles
Pressure: 30.01 in.
Flight Rule: IFR
Wind Data
7 MPH
080° East
Cloud Level(s): Solid Overcast at 1200ft
Current Conditions at
MATTOON - (KMTO)
28°
Cloudy
Light Snow Mist
as of 12:37 AM CST
Rel. Humidity: 92%
Dew Point: 27°F
Visibility: 3/4 Miles
Pressure: 29.97 in.
Flight Rule: MVFR
Wind Data
6 MPH
090° East
Cloud Level(s): Few at 500ft, Solid Overcast at 1400ft
Current Conditions at
MOUNT CARMEL MUNI - (KAJG)
32°
Cloudy
Light Rain
as of 12:35 AM CST
Rel. Humidity: 100%
Dew Point: 32°F
Visibility: 2 1/2 Miles
Pressure: 29.99 in.
Flight Rule: LIFR
Wind Data
6 MPH
070° East
Cloud Level(s): Solid Overcast at 400ft
90% chance of snow Overnight Overnight... Snow, mainly before 4am. Low around 26. East wind around 8 mph, with gusts as high as 16 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 3 to 5 inches possible.

20% chance of snow Friday Friday... A 20 percent chance of snow before 9am. Mostly cloudy, with a high near 33. Northeast wind 7 to 9 mph becoming west northwest in the afternoon. Winds could gust as high as 16 mph.

Cloudy on Friday Night Friday Night... Cloudy, with a low around 16. West northwest wind 6 to 9 mph, with gusts as high as 17 mph.

90% chance of snow Saturday Saturday... Snow, mainly after noon. The snow could be heavy at times. High near 20. Wind chill values between 2 and 7. North northwest wind 8 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

Clearing on Saturday Night Saturday Night... Cloudy during the early evening, then gradual clearing, with a low around -5. Northwest wind around 10 mph, with gusts as high as 20 mph.

Sunny on Sunday Sunday... Sunny and cold, with a high near 4. Northwest wind 5 to 10 mph, with gusts as high as 18 mph.

Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around -8. Calm wind becoming south around 5 mph after midnight.

Mostly Sunny on Monday Monday... Mostly sunny, with a high near 23.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 16.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 35.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 29.

Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 45.

20% chance of rain Wednesday Night Wednesday Night... A chance of rain. Mostly cloudy, with a low around 36.

20% chance of rain Thursday Thursday... A chance of rain. Partly sunny, with a high near 49.

Current Radar Image


Sun Almanac for Clarksville, Illinois
Sunrise: 07:02 AM
Sunset: 4:28 PM
Civil Sunrise:06:32 AM
Civil Sunset: 4:58 PM
Nautical Sunrise: 05:59 AM
Nautical Sunset: 5:32 PM
Astro Sunrise: 05:26 AM
Astro Sunset: 6:04 PM
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