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

42°F

6°C

Humidity 76%
Wind Speed S 5 mph
Barometer 30.20 in (1023.1 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 2 Nov 9:53 pm CST
Extended Forecast for

Lerna IL

  • Tonight

    Tonight: Mostly clear, with a low around 36. South southwest wind 7 to 10 mph, with gusts as high as 15 mph.

    Low: 36 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 61. Southwest wind 7 to 11 mph becoming west northwest in the afternoon. Winds could gust as high as 21 mph.

    High: 61 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 36. Light and variable wind.

    Low: 36 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 65. Light south southeast wind becoming south 10 to 15 mph in the morning. Winds could gust as high as 28 mph.

    High: 65 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 49. South southwest wind 11 to 13 mph, with gusts as high as 21 mph.

    Low: 49 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 70. Southwest wind 9 to 14 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 70 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 38. Northwest wind 5 to 7 mph becoming east northeast after midnight.

    Low: 38 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Thursday Night

    Thursday Night: A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy
    then Chance
    Rain

Detailed Forecast

Tonight
Mostly clear, with a low around 36. South southwest wind 7 to 10 mph, with gusts as high as 15 mph.
Monday
Sunny, with a high near 61. Southwest wind 7 to 11 mph becoming west northwest in the afternoon. Winds could gust as high as 21 mph.
Monday Night
Partly cloudy, with a low around 36. Light and variable wind.
Tuesday
Mostly sunny, with a high near 65. Light south southeast wind becoming south 10 to 15 mph in the morning. Winds could gust as high as 28 mph.
Tuesday Night
Partly cloudy, with a low around 49. South southwest wind 11 to 13 mph, with gusts as high as 21 mph.
Wednesday
Sunny, with a high near 70. Southwest wind 9 to 14 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 38. Northwest wind 5 to 7 mph becoming east northeast after midnight.
Thursday
Sunny, with a high near 62.
Thursday Night
A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 48.
Friday
A 40 percent chance of rain before noon. Partly sunny, with a high near 66.
Friday Night
Partly cloudy, with a low around 41.
Saturday
Mostly sunny, with a high near 62.
Saturday Night
Partly cloudy, with a low around 39.
Sunday
Mostly sunny, with a high near 52.
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:
10:11 pm CST Nov 2, 2025
Forecast Valid:
10pm CST Nov 2, 2025-6pm CST Nov 9, 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