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Clarksville, Illinois Weather Forecast
Clarksville, Illinois Weather
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Weather Forecast for Clarksville, Illinois : Clark County
Issued: 1:36 pm CST Jan 16, 2026 Latitude: 39.451702 Longitude: -87.7978078 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Saturday Sunday M.L.King Day Tuesday Wednesday Thursday
30% chance of rain & snow on This Afternoon 40% chance of snow on Tonight 20% chance of snow on Saturday Increasing Clouds on Sunday Sunny on M.L.King Day Mostly Sunny on Tuesday Partly Sunny on Wednesday Partly Sunny on Thursday
High: 40°F Low: 21°F High: 26°F High: 25°F High: 16°F High: 27°F High: 42°F High: 32°F
Low: 10°F Low: 8 °F Low: 6°F Low: 20°F Low: 20°F  
Rain & Snow Snow Snow Increasing Clouds Sunny Mostly Sunny Partly Sunny Partly Sunny
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Current Conditions at
MATTOON - (KMTO)
37°
Feels like 29°F
Mostly Cloudy
as of 1:53 PM CST
Rel. Humidity: 69%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 29.67 in.
Flight Rule: VFR
Wind Data
12 MPH
Gust: 32 MPH
260° West
Cloud Level(s): Scattered at 2800ft, Broken at 3400ft
Current Conditions at
TERRE HAUTE - (KHUF)
39°
Feels like 33°F
Cloudy
as of 2:53 PM EST
Rel. Humidity: 64%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 29.69 in.
Flight Rule: VFR
Wind Data
9 MPH
220° Southwest
Cloud Level(s): Solid Overcast at 3300ft
30% chance of rain & snow This Afternoon This Afternoon... A slight chance of snow showers before 4pm, then a slight chance of rain and snow showers between 4pm and 5pm, then a chance of snow showers after 5pm. Cloudy, with a high near 40. West southwest wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.

40% chance of snow Tonight Tonight... A 40 percent chance of snow showers, mainly before midnight. Mostly cloudy, with a low around 21. West southwest wind 8 to 13 mph, with gusts as high as 21 mph.

20% chance of snow Saturday Saturday... A chance of flurries after noon. Partly sunny, with a high near 26. West wind 13 to 17 mph, with gusts as high as 24 mph.

20% chance of snow Saturday Night Saturday Night... A chance of flurries before midnight. Partly cloudy, with a low around 10. Wind chill values between zero and 5. West wind 7 to 10 mph, with gusts as high as 21 mph.

Increasing Clouds on Sunday Sunday... Increasing clouds, with a high near 25. Southwest wind 7 to 15 mph, with gusts as high as 24 mph.

Mostly Clear on Sunday Night Sunday Night... Mostly cloudy, then gradually becoming mostly clear, with a low around 8. Southwest wind 10 to 17 mph becoming west northwest after midnight. Winds could gust as high as 28 mph.

Sunny on M.L.King Day M.L.King Day... Sunny, with a high near 16. West northwest wind 10 to 18 mph, with gusts as high as 29 mph.

Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 6.

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

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 20.

Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 42.

Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 20.

Partly Sunny on Thursday Thursday... Partly sunny, with a high near 32.

Sun Almanac for Clarksville, Illinois
Sunrise: 07:09 AM
Sunset: 4:53 PM
Civil Sunrise:06:40 AM
Civil Sunset: 5:22 PM
Nautical Sunrise: 06:07 AM
Nautical Sunset: 5:55 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.