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

31°F

-1°C

Humidity 92%
Wind Speed E 12 mph
Barometer 30.30 in (1026.7 mb)
Dewpoint 29°F (-2°C)
Visibility 7.00 mi
Wind Chill22°F (-6°C)
Last update 2 Mar 4:53 am CST
Extended Forecast for

Lerna IL

  • Overnight

    Overnight: Snow before 5am, then a chance of freezing rain. Low around 30. East wind around 13 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. Little or no ice accumulation expected. Total nighttime snow accumulation of 1 to 2 inches possible.

    Low: 30 °F

    Wintry Mix

  • Monday

    Monday: A chance of freezing rain, mainly before 7am. Cloudy, with a high near 41. East wind 8 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.

    High: 41 °F

    Chance
    Freezing Rain
    then Cloudy

  • Monday Night

    Monday Night: A 50 percent chance of showers, mainly after 3am. Cloudy, with a low around 37. East wind 6 to 8 mph.

    Low: 37 °F

    Cloudy then
    Chance
    Showers

  • Tuesday

    Tuesday: Showers. High near 54. East wind 6 to 8 mph becoming south in the afternoon. Winds could gust as high as 16 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 54 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers before midnight, then showers and possibly a thunderstorm between midnight and 3am, then showers after 3am. Low around 49. East wind 6 to 8 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 49 °F

    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm before 9am, then showers between 9am and noon, then showers and possibly a thunderstorm after noon. High near 62. South southwest wind 8 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 62 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Low around 53. South southwest wind 8 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 53 °F

    Showers

  • Thursday

    Thursday: Showers likely, mainly before noon. Mostly cloudy, with a high near 64. Chance of precipitation is 70%.

    High: 64 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 52.

    Low: 52 °F

    Chance
    Showers

Detailed Forecast

Overnight
Snow before 5am, then a chance of freezing rain. Low around 30. East wind around 13 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. Little or no ice accumulation expected. Total nighttime snow accumulation of 1 to 2 inches possible.
Monday
A chance of freezing rain, mainly before 7am. Cloudy, with a high near 41. East wind 8 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.
Monday Night
A 50 percent chance of showers, mainly after 3am. Cloudy, with a low around 37. East wind 6 to 8 mph.
Tuesday
Showers. High near 54. East wind 6 to 8 mph becoming south in the afternoon. Winds could gust as high as 16 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
Showers before midnight, then showers and possibly a thunderstorm between midnight and 3am, then showers after 3am. Low around 49. East wind 6 to 8 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday
Showers and possibly a thunderstorm before 9am, then showers between 9am and noon, then showers and possibly a thunderstorm after noon. High near 62. South southwest wind 8 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday Night
Showers and possibly a thunderstorm. Low around 53. South southwest wind 8 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
Showers likely, mainly before noon. Mostly cloudy, with a high near 64. Chance of precipitation is 70%.
Thursday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 52.
Friday
Showers likely and possibly a thunderstorm before noon, then a chance of showers. Mostly cloudy, with a high near 73. Chance of precipitation is 60%.
Friday Night
Showers likely. Mostly cloudy, with a low around 55.
Saturday
Showers likely. Cloudy, with a high near 64.
Saturday Night
Mostly cloudy, with a low around 44.
Sunday
Partly sunny, with a high near 61.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lerna IL
 39.42°N 88.28°W (Elev. 741 ft)
Last Update:
3:31 am CST Mar 2, 2026
Forecast Valid:
4am CST Mar 2, 2026-6pm CDT Mar 8, 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