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.

Fog/Mist

17°F

-8°C

Humidity 88%
Wind Speed N 3 mph
Barometer 30.28 in (1026.4 mb)
Dewpoint 14°F (-10°C)
Visibility 5.00 mi
Last update 4 Feb 2:53 am CST
Extended Forecast for

Charleston IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 10. North northeast wind around 7 mph.

    Low: 10 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 25. Wind chill values between 4 and 14. North northeast wind 6 to 9 mph, with gusts as high as 15 mph.

    High: 25 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 11. Light and variable wind.

    Low: 11 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 29. Wind chill values between 5 and 15. Light southwest wind becoming south southwest 5 to 10 mph in the morning. Winds could gust as high as 17 mph.

    High: 29 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 23. South southwest wind 7 to 9 mph, with gusts as high as 17 mph.

    Low: 23 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 41. Northwest wind 10 to 14 mph, with gusts as high as 23 mph.

    High: 41 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 19. North northwest wind 6 to 10 mph, with gusts as high as 18 mph.

    Low: 19 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 31.

    High: 31 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 22.

    Low: 22 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 10. North northeast wind around 7 mph.
Wednesday
Partly sunny, with a high near 25. Wind chill values between 4 and 14. North northeast wind 6 to 9 mph, with gusts as high as 15 mph.
Wednesday Night
Partly cloudy, with a low around 11. Light and variable wind.
Thursday
Mostly cloudy, with a high near 29. Wind chill values between 5 and 15. Light southwest wind becoming south southwest 5 to 10 mph in the morning. Winds could gust as high as 17 mph.
Thursday Night
Mostly cloudy, with a low around 23. South southwest wind 7 to 9 mph, with gusts as high as 17 mph.
Friday
Partly sunny, with a high near 41. Northwest wind 10 to 14 mph, with gusts as high as 23 mph.
Friday Night
Partly cloudy, with a low around 19. North northwest wind 6 to 10 mph, with gusts as high as 18 mph.
Saturday
Mostly sunny, with a high near 31.
Saturday Night
Mostly cloudy, with a low around 22.
Sunday
Partly sunny, with a high near 38.
Sunday Night
Partly cloudy, with a low around 21.
Monday
Mostly sunny, with a high near 41.
Monday Night
Mostly cloudy, with a low around 30.
Tuesday
Partly sunny, with a high near 49.
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:
2:37 am CST Feb 4, 2026
Forecast Valid:
3am CST Feb 4, 2026-6pm CST Feb 10, 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