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

39°F

4°C

Humidity 62%
Wind Speed NW 9 mph
Barometer 30.28 in (1025.8 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 11 Feb 11:53 am CST
Extended Forecast for

Lerna IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 44. Northwest wind 8 to 11 mph, with gusts as high as 17 mph.

    High: 44 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 27. Northwest wind 5 to 7 mph becoming calm after midnight.

    Low: 27 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Cloudy, then gradually becoming mostly sunny, with a high near 46. Calm wind becoming south southwest around 5 mph.

    High: 46 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 28. Calm wind becoming south southeast around 5 mph after midnight.

    Low: 28 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 49. South wind 5 to 9 mph, with gusts as high as 15 mph.

    High: 49 °F

    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 31. South wind around 6 mph.

    Low: 31 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Mostly cloudy, with a high near 50. South southeast wind 5 to 7 mph.

    High: 50 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 38.

    Low: 38 °F

    Chance Rain

  • Sunday

    Sunday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 44. Northwest wind 8 to 11 mph, with gusts as high as 17 mph.
Tonight
Increasing clouds, with a low around 27. Northwest wind 5 to 7 mph becoming calm after midnight.
Thursday
Cloudy, then gradually becoming mostly sunny, with a high near 46. Calm wind becoming south southwest around 5 mph.
Thursday Night
Partly cloudy, with a low around 28. Calm wind becoming south southeast around 5 mph after midnight.
Friday
Sunny, with a high near 49. South wind 5 to 9 mph, with gusts as high as 15 mph.
Friday Night
Increasing clouds, with a low around 31. South wind around 6 mph.
Saturday
Mostly cloudy, with a high near 50. South southeast wind 5 to 7 mph.
Saturday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 38.
Sunday
Mostly sunny, with a high near 53.
Sunday Night
Mostly clear, with a low around 32.
Washington's Birthday
Partly sunny, with a high near 55.
Monday Night
Mostly cloudy, with a low around 39.
Tuesday
Mostly cloudy, with a high near 59.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lerna IL
 39.42°N 88.28°W (Elev. 741 ft)
Last Update:
12:36 pm CST Feb 11, 2026
Forecast Valid:
12pm CST Feb 11, 2026-6pm CST Feb 17, 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