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.

Fair

65°F

18°C

Humidity 34%
Wind Speed S 13 G 24 mph
Barometer 29.83 in (1010.2 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 27 Feb 4:53 pm CST
Extended Forecast for

Lerna IL

  • Tonight

    Tonight: Mostly clear, with a low around 36. South wind 7 to 11 mph becoming north after midnight. Winds could gust as high as 22 mph.

    Low: 36 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 58. Northeast wind 6 to 9 mph becoming south southeast in the afternoon.

    High: 58 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 27. East southeast wind 5 to 15 mph becoming north after midnight. Winds could gust as high as 23 mph.

    Low: 27 °F

    Partly Cloudy

  • Sunday

    Sunday: Increasing clouds, with a high near 41. Northeast wind 10 to 14 mph, with gusts as high as 22 mph.

    High: 41 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Snow likely, mainly after midnight. Cloudy, with a low around 28. East northeast wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    Low: 28 °F

    Snow Likely

  • Monday

    Monday: A 40 percent chance of rain before noon. Mostly cloudy, with a high near 40. East wind 9 to 13 mph, with gusts as high as 22 mph.

    High: 40 °F

    Chance Rain
    then Mostly
    Cloudy

  • Monday Night

    Monday Night: Rain likely, mainly after midnight. Cloudy, with a low around 34. East southeast wind around 9 mph, with gusts as high as 16 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 34 °F

    Rain Likely

  • Tuesday

    Tuesday: Rain. High near 51. Chance of precipitation is 80%.

    High: 51 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain likely, with thunderstorms also possible after midnight. Cloudy, with a low around 42. Chance of precipitation is 70%.

    Low: 42 °F

    Rain Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 36. South wind 7 to 11 mph becoming north after midnight. Winds could gust as high as 22 mph.
Saturday
Mostly sunny, with a high near 58. Northeast wind 6 to 9 mph becoming south southeast in the afternoon.
Saturday Night
Partly cloudy, with a low around 27. East southeast wind 5 to 15 mph becoming north after midnight. Winds could gust as high as 23 mph.
Sunday
Increasing clouds, with a high near 41. Northeast wind 10 to 14 mph, with gusts as high as 22 mph.
Sunday Night
Snow likely, mainly after midnight. Cloudy, with a low around 28. East northeast wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Monday
A 40 percent chance of rain before noon. Mostly cloudy, with a high near 40. East wind 9 to 13 mph, with gusts as high as 22 mph.
Monday Night
Rain likely, mainly after midnight. Cloudy, with a low around 34. East southeast wind around 9 mph, with gusts as high as 16 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
Rain. High near 51. Chance of precipitation is 80%.
Tuesday Night
Rain likely, with thunderstorms also possible after midnight. Cloudy, with a low around 42. Chance of precipitation is 70%.
Wednesday
Rain likely, mainly after noon. Cloudy, with a high near 58. Chance of precipitation is 60%.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 49.
Thursday
Rain likely. Mostly cloudy, with a high near 61.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 50.
Friday
Rain likely. Cloudy, with a high near 65.
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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:
3:37 pm CST Feb 27, 2026
Forecast Valid:
5pm CST Feb 27, 2026-6pm CST Mar 6, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation