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Clarksville, Illinois Weather Forecast
Clarksville, Illinois Weather
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Weather Forecast for Clarksville, Illinois : Clark County
Issued: 11:11 am CST Jan 15, 2026 Latitude: 39.451702 Longitude: -87.7978078 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Friday Saturday Sunday M.L.King Day Tuesday Wednesday
Sunny on This Afternoon 80% chance of snow on Tonight Mostly Cloudy on Friday Flurries on Saturday Mostly Sunny on Sunday Mostly Sunny on M.L.King Day Mostly Sunny on Tuesday Mostly Sunny on Wednesday
High: 28°F Low: 21°F High: 40°F High: 24°F High: 20°F High: 19°F High: 22°F High: 36°F
Low: 19°F Low: 8 °F Low: 9°F Low: 5°F Low: 13°F  
Sunny Snow Mostly Cloudy Flurries Mostly Sunny Mostly Sunny Mostly Sunny Mostly Sunny
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Current Conditions at
EDGAR COUNTY ARPT - (KPRG)
25°
Clear
as of 12:15 PM CST
Rel. Humidity: 53%
Dew Point: 10°F
Visibility: 10 Miles
Pressure: 30.00 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
MATTOON - (KMTO)
21°
Clear
as of 11:53 AM CST
Rel. Humidity: 53%
Dew Point: 7°F
Visibility: 10 Miles
Pressure: 30.00 in.
Flight Rule: VFR
Wind Data
3 MPH
Cloud Level(s): Clear
Current Conditions at
TERRE HAUTE - (KHUF)
25°
Clear
as of 12:53 PM EST
Rel. Humidity: 58%
Dew Point: 12°F
Visibility: 10 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
7 MPH
270° West
Cloud Level(s): Clear
Current Conditions at
MOUNT CARMEL MUNI - (KAJG)
27°
Feels like 17°F
Clear
as of 12:15 PM CST
Rel. Humidity: 45%
Dew Point: 9°F
Visibility: 10 Miles
Pressure: 30.04 in.
Flight Rule: VFR
Wind Data
9 MPH
280° West
Cloud Level(s): Clear
Sunny on This Afternoon This Afternoon... Sunny, with a high near 28. West northwest wind 6 to 9 mph becoming southwest. Winds could gust as high as 15 mph.

80% chance of snow Tonight Tonight... Snow, mainly after midnight. Low around 21. South wind 6 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

Mostly Cloudy on Friday Friday... Mostly cloudy, with a high near 40. South wind 11 to 17 mph becoming west in the morning. Winds could gust as high as 25 mph.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 19. West southwest wind 8 to 11 mph, with gusts as high as 20 mph.

Flurries on Saturday Saturday... Scattered flurries. Partly sunny, with a high near 24. West wind 11 to 16 mph, with gusts as high as 24 mph.

Flurries on Saturday Night Saturday Night... Scattered flurries before midnight. Partly cloudy, with a low around 8. West wind 8 to 10 mph, with gusts as high as 18 mph.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 20. West southwest wind 8 to 15 mph, with gusts as high as 21 mph.

Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 9.

Mostly Sunny on M.L.King Day M.L.King Day... Mostly sunny, with a high near 19.

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 22.

Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 13.

Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 36.

Current Radar Image


Sun Almanac for Clarksville, Illinois
Sunrise: 07:10 AM
Sunset: 4:52 PM
Civil Sunrise:06:40 AM
Civil Sunset: 5:21 PM
Nautical Sunrise: 06:07 AM
Nautical Sunset: 5:54 PM
Astro Sunrise: 05:35 AM
Astro Sunset: 6:27 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.