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

27°F

-3°C

Humidity 92%
Wind Speed Calm
Barometer 29.89 in (1013.0 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 1 Jan 8:53 pm CST
Extended Forecast for

Mattoon IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 23. Light and variable wind becoming north northwest around 6 mph after midnight.

    Low: 23 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 35. North northeast wind 5 to 7 mph.

    High: 35 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 24. Northeast wind around 6 mph.

    Low: 24 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 37. Northeast wind 3 to 6 mph.

    High: 37 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 20. Light north northwest wind.

    Low: 20 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 37. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 37 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 29. South southeast wind 5 to 13 mph, with gusts as high as 21 mph.

    Low: 29 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 23. Light and variable wind becoming north northwest around 6 mph after midnight.
Friday
Partly sunny, with a high near 35. North northeast wind 5 to 7 mph.
Friday Night
Mostly cloudy, with a low around 24. Northeast wind around 6 mph.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 37. Northeast wind 3 to 6 mph.
Saturday Night
Mostly clear, with a low around 20. Light north northwest wind.
Sunday
Increasing clouds, with a high near 37. Calm wind becoming south southeast around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 29. South southeast wind 5 to 13 mph, with gusts as high as 21 mph.
Monday
Mostly sunny, with a high near 51.
Monday Night
Mostly cloudy, with a low around 38.
Tuesday
Partly sunny, with a high near 57.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
Partly sunny, with a high near 51.
Wednesday Night
Partly cloudy, with a low around 37.
Thursday
A chance of rain. Mostly cloudy, with a high near 55.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mattoon IL
 39.49°N 88.36°W (Elev. 722 ft)
Last Update:
8:36 pm CST Jan 1, 2026
Forecast Valid:
8pm CST Jan 1, 2026-6pm CST Jan 8, 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