National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Mattoon / Charleston, Coles County Memorial Airport (KMTO)

Lat: 39.48°NLon: 88.28°WElev: 722ft.

Fair

32°F

0°C

Humidity 45%
Wind Speed SE 17 G 24 mph
Barometer 30.18 in (1022.8 mb)
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 8 Feb 3:53 pm CST
Extended Forecast for

Charleston IL

  • Tonight

    Tonight: Partly cloudy, with a low around 22. East southeast wind 5 to 9 mph, with gusts as high as 17 mph.

    Low: 22 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 42. East southeast wind around 6 mph becoming light and variable.

    High: 42 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 32. South southeast wind 6 to 9 mph becoming southwest after midnight. Winds could gust as high as 18 mph.

    Low: 32 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 51. West southwest wind 6 to 9 mph becoming northwest in the afternoon. Winds could gust as high as 15 mph.

    High: 51 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 27. North northwest wind around 6 mph.

    Low: 27 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 43. North northwest wind 5 to 7 mph.

    High: 43 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 26. Light and variable wind becoming east northeast around 5 mph after midnight.

    Low: 26 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 40.

    High: 40 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 27.

    Low: 27 °F

    Chance Snow

Detailed Forecast

Tonight
Partly cloudy, with a low around 22. East southeast wind 5 to 9 mph, with gusts as high as 17 mph.
Monday
Mostly sunny, with a high near 42. East southeast wind around 6 mph becoming light and variable.
Monday Night
Mostly clear, with a low around 32. South southeast wind 6 to 9 mph becoming southwest after midnight. Winds could gust as high as 18 mph.
Tuesday
Sunny, with a high near 51. West southwest wind 6 to 9 mph becoming northwest in the afternoon. Winds could gust as high as 15 mph.
Tuesday Night
Mostly cloudy, with a low around 27. North northwest wind around 6 mph.
Wednesday
Mostly sunny, with a high near 43. North northwest wind 5 to 7 mph.
Wednesday Night
Partly cloudy, with a low around 26. Light and variable wind becoming east northeast around 5 mph after midnight.
Thursday
Mostly cloudy, with a high near 40.
Thursday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 27.
Friday
Mostly sunny, with a high near 41.
Friday Night
Partly cloudy, with a low around 26.
Saturday
A chance of rain. Partly sunny, with a high near 41.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 30.
Sunday
Mostly sunny, with a high near 44.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Charleston IL
 39.5°N 88.19°W (Elev. 650 ft)
Last Update:
3:36 pm CST Feb 8, 2026
Forecast Valid:
4pm CST Feb 8, 2026-6pm CST Feb 15, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation