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

36°F

2°C

Humidity 50%
Wind Speed NW 3 mph
Barometer 30.12 in (1020.6 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Last update 9 Feb 11:53 am CST
Extended Forecast for

Lerna IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 41. Calm wind becoming south southeast around 5 mph.

    High: 41 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 34. South southeast wind 7 to 11 mph becoming southwest after midnight. Winds could gust as high as 20 mph.

    Low: 34 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 51. West southwest wind 7 to 11 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 51 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 27. North northwest wind 6 to 8 mph, with gusts as high as 15 mph.

    Low: 27 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 42. North northwest wind 5 to 8 mph.

    High: 42 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 27. Light and variable wind becoming east northeast around 5 mph after midnight.

    Low: 27 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 40. East wind around 6 mph.

    High: 40 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A 30 percent chance of snow. Mostly cloudy, with a low around 28.

    Low: 28 °F

    Chance Snow

  • Friday

    Friday: Mostly cloudy, with a high near 41.

    High: 41 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 41. Calm wind becoming south southeast around 5 mph.
Tonight
Partly cloudy, with a low around 34. South southeast wind 7 to 11 mph becoming southwest after midnight. Winds could gust as high as 20 mph.
Tuesday
Mostly sunny, with a high near 51. West southwest wind 7 to 11 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 27. North northwest wind 6 to 8 mph, with gusts as high as 15 mph.
Wednesday
Mostly sunny, with a high near 42. North northwest wind 5 to 8 mph.
Wednesday Night
Mostly cloudy, with a low around 27. Light and variable wind becoming east northeast around 5 mph after midnight.
Thursday
Mostly cloudy, with a high near 40. East wind around 6 mph.
Thursday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 28.
Friday
Mostly cloudy, with a high near 41.
Friday Night
A chance of rain and snow after midnight. Mostly cloudy, with a low around 27. Chance of precipitation is 30%.
Saturday
A chance of rain. Cloudy, with a high near 42.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 31.
Sunday
A chance of rain. Mostly sunny, with a high near 43.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lerna IL
 39.42°N 88.28°W (Elev. 741 ft)
Last Update:
12:36 pm CST Feb 9, 2026
Forecast Valid:
12pm CST Feb 9, 2026-6pm CST Feb 15, 2026
 
Forecast Discussion
 
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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