National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Mattoon / Charleston, Coles County Memorial Airport (KMTO)

Lat: 39.48°NLon: 88.28°WElev: 722ft.

Overcast

28°F

-2°C

Humidity 66%
Wind Speed SE 16 mph
Barometer 30.07 in (1019.2 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill16°F (-9°C)
Last update 18 Mar 4:53 am CDT
Extended Forecast for

Lerna IL

  • Overnight

    Overnight: A 20 percent chance of snow. Cloudy, with a low around 25. South southeast wind around 13 mph, with gusts as high as 26 mph.

    Low: 25 °F

    Slight Chance
    Snow

  • Wednesday

    Wednesday: A 20 percent chance of snow before 8am. Cloudy through mid morning, then gradual clearing, with a high near 53. South southeast wind 10 to 16 mph becoming southwest in the afternoon. Winds could gust as high as 29 mph.

    High: 53 °F

    Slight Chance
    Snow then
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 38. West southwest wind around 6 mph becoming light and variable.

    Low: 38 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 64. South wind 6 to 8 mph.

    High: 64 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 43. East northeast wind around 7 mph becoming south southeast after midnight.

    Low: 43 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 71. South wind 6 to 11 mph becoming west southwest in the afternoon. Winds could gust as high as 17 mph.

    High: 71 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 49. Southwest wind around 7 mph becoming north northwest after midnight.

    Low: 49 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

Detailed Forecast

Overnight
A 20 percent chance of snow. Cloudy, with a low around 25. South southeast wind around 13 mph, with gusts as high as 26 mph.
Wednesday
A 20 percent chance of snow before 8am. Cloudy through mid morning, then gradual clearing, with a high near 53. South southeast wind 10 to 16 mph becoming southwest in the afternoon. Winds could gust as high as 29 mph.
Wednesday Night
Mostly cloudy, with a low around 38. West southwest wind around 6 mph becoming light and variable.
Thursday
Partly sunny, with a high near 64. South wind 6 to 8 mph.
Thursday Night
Partly cloudy, with a low around 43. East northeast wind around 7 mph becoming south southeast after midnight.
Friday
Partly sunny, with a high near 71. South wind 6 to 11 mph becoming west southwest in the afternoon. Winds could gust as high as 17 mph.
Friday Night
Mostly cloudy, with a low around 49. Southwest wind around 7 mph becoming north northwest after midnight.
Saturday
Mostly sunny, with a high near 71.
Saturday Night
Mostly clear, with a low around 51.
Sunday
Mostly sunny, with a high near 72.
Sunday Night
Mostly cloudy, with a low around 34.
Monday
Partly sunny, with a high near 49.
Monday Night
Mostly cloudy, with a low around 31.
Tuesday
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:
Lerna IL
 39.42°N 88.28°W (Elev. 741 ft)
Last Update:
4:46 am CDT Mar 18, 2026
Forecast Valid:
5am CDT Mar 18, 2026-6pm CDT Mar 24, 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