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

38°F

3°C

Humidity 70%
Wind Speed S 9 mph
Barometer 29.93 in (1014.1 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 10 Feb 1:53 am CST
Extended Forecast for

Charleston IL

  • Overnight

    Overnight: Mostly clear, with a low around 33. South wind 10 to 13 mph, with gusts as high as 21 mph.

    Low: 33 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 53. South southwest wind 10 to 14 mph becoming north northwest in the afternoon. Winds could gust as high as 23 mph.

    High: 53 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 26. North northwest wind 7 to 9 mph, with gusts as high as 18 mph.

    Low: 26 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 42. North northwest wind 5 to 8 mph, with gusts as high as 15 mph.

    High: 42 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 26. Light and variable wind.

    Low: 26 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Cloudy, with a high near 42. Calm wind becoming southeast around 5 mph.

    High: 42 °F

    Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 28. East wind 3 to 5 mph.

    Low: 28 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 47.

    High: 47 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 33. South wind 10 to 13 mph, with gusts as high as 21 mph.
Tuesday
Mostly sunny, with a high near 53. South southwest wind 10 to 14 mph becoming north northwest in the afternoon. Winds could gust as high as 23 mph.
Tuesday Night
Mostly clear, with a low around 26. North northwest wind 7 to 9 mph, with gusts as high as 18 mph.
Wednesday
Sunny, with a high near 42. North northwest wind 5 to 8 mph, with gusts as high as 15 mph.
Wednesday Night
Increasing clouds, with a low around 26. Light and variable wind.
Thursday
Cloudy, with a high near 42. Calm wind becoming southeast around 5 mph.
Thursday Night
Mostly cloudy, with a low around 28. East wind 3 to 5 mph.
Friday
Mostly sunny, with a high near 47.
Friday Night
Partly cloudy, with a low around 30.
Saturday
A 30 percent chance of rain after noon. Mostly cloudy, with a high near 47.
Saturday Night
Rain likely. Cloudy, with a low around 36.
Sunday
A chance of rain. Mostly sunny, with a high near 48.
Sunday Night
Partly cloudy, with a low around 31.
Washington's Birthday
Mostly sunny, with a high near 53.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Charleston IL
 39.5°N 88.19°W (Elev. 650 ft)
Last Update:
2:12 am CST Feb 10, 2026
Forecast Valid:
2am CST Feb 10, 2026-6pm CST Feb 16, 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