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

74°F

23°C

Humidity 46%
Wind Speed N 6 mph
Barometer 30.21 in (1022.8 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 14 Oct 5:53 pm CDT
Extended Forecast for

Charleston IL

  • Tonight

    Tonight: Partly cloudy, with a low around 55. Northeast wind 3 to 6 mph.

    Low: 55 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 78. Northeast wind 3 to 7 mph.

    High: 78 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 54. East northeast wind around 6 mph.

    Low: 54 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 77. East southeast wind around 7 mph.

    High: 77 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 51. Southeast wind around 6 mph.

    Low: 51 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 77. South wind 6 to 10 mph, with gusts as high as 16 mph.

    High: 77 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 60. South wind around 8 mph.

    Low: 60 °F

    Partly Cloudy

  • Saturday

    Saturday: Showers likely, mainly after 1pm. Partly sunny, with a high near 77. Chance of precipitation is 70%.

    High: 77 °F

    Chance
    Showers then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.

    Low: 48 °F

    Showers
    Likely

Detailed Forecast

Tonight
Partly cloudy, with a low around 55. Northeast wind 3 to 6 mph.
Wednesday
Partly sunny, with a high near 78. Northeast wind 3 to 7 mph.
Wednesday Night
Partly cloudy, with a low around 54. East northeast wind around 6 mph.
Thursday
Sunny, with a high near 77. East southeast wind around 7 mph.
Thursday Night
Partly cloudy, with a low around 51. Southeast wind around 6 mph.
Friday
Partly sunny, with a high near 77. South wind 6 to 10 mph, with gusts as high as 16 mph.
Friday Night
Partly cloudy, with a low around 60. South wind around 8 mph.
Saturday
Showers likely, mainly after 1pm. Partly sunny, with a high near 77. Chance of precipitation is 70%.
Saturday Night
Showers likely. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.
Sunday
A 30 percent chance of showers before 1pm. Mostly sunny, with a high near 67.
Sunday Night
Mostly clear, with a low around 41.
Monday
Sunny, with a high near 69.
Monday Night
Mostly clear, with a low around 46.
Tuesday
Sunny, with a high near 70.
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:
5:41 pm CDT Oct 14, 2025
Forecast Valid:
6pm CDT Oct 14, 2025-6pm CDT Oct 21, 2025
 
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