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.

Mostly Cloudy

52°F

11°C

Humidity 55%
Wind Speed W 3 mph
Barometer 29.87 in (1011.8 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 26 Feb 2:53 pm CST
Extended Forecast for

Charleston IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 50. Light southwest wind.

    High: 50 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 33. Calm wind becoming south southwest around 5 mph after midnight.

    Low: 33 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 64. Southwest wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 31 mph.

    High: 64 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 36. South southwest wind 6 to 11 mph becoming north after midnight. Winds could gust as high as 25 mph.

    Low: 36 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 55. East northeast wind 6 to 10 mph, with gusts as high as 16 mph.

    High: 55 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 25. North northeast wind 10 to 13 mph, with gusts as high as 22 mph.

    Low: 25 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 39. Northeast wind 10 to 13 mph, with gusts as high as 22 mph.

    High: 39 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Rain and snow likely. Cloudy, with a low around 23. Chance of precipitation is 70%.

    Low: 23 °F

    Rain/Snow
    Likely

  • Monday

    Monday: Mostly cloudy, with a high near 37.

    High: 37 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Sunny, with a high near 50. Light southwest wind.
Tonight
Mostly clear, with a low around 33. Calm wind becoming south southwest around 5 mph after midnight.
Friday
Sunny, with a high near 64. Southwest wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 31 mph.
Friday Night
Mostly clear, with a low around 36. South southwest wind 6 to 11 mph becoming north after midnight. Winds could gust as high as 25 mph.
Saturday
Mostly sunny, with a high near 55. East northeast wind 6 to 10 mph, with gusts as high as 16 mph.
Saturday Night
Partly cloudy, with a low around 25. North northeast wind 10 to 13 mph, with gusts as high as 22 mph.
Sunday
Mostly cloudy, with a high near 39. Northeast wind 10 to 13 mph, with gusts as high as 22 mph.
Sunday Night
Rain and snow likely. Cloudy, with a low around 23. Chance of precipitation is 70%.
Monday
Mostly cloudy, with a high near 37.
Monday Night
A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 26.
Tuesday
A chance of rain. Cloudy, with a high near 42.
Tuesday Night
Rain likely. Cloudy, with a low around 34.
Wednesday
A chance of rain. Cloudy, with a high near 52.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Charleston IL
 39.48°N 88.19°W (Elev. 650 ft)
Last Update:
2:36 pm CST Feb 26, 2026
Forecast Valid:
3pm CST Feb 26, 2026-6pm CST Mar 4, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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