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

62°F

17°C

Humidity 78%
Wind Speed S 17 G 46 mph
Barometer 29.37 in (994.3 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 15 Mar 4:53 pm CDT
Extended Forecast for

Lerna IL

Tornado Watch until March 15, 10:00pm
Wind Advisory March 15, 05:03pm until March 16, 10:00am
Click here for hazard details and duration
Tornado Watch
Wind Advisory
  •  
    Tornado Watch until March 15, 10:00pm
    Wind Advisory March 15, 05:03pm until March 16, 10:00am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • This Afternoon

    High: 67 °F

    Chance
    T-storms and
    Windy

  • Tonight

    Tonight: Rain showers before midnight, then a chance of snow after 3am. Some thunder is also possible. Low around 23. Windy, with a west wind 26 to 31 mph, with gusts as high as 48 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    Low: 23 °F

    Severe
    Thunderstorms
    and Windy
    then Chance
    Snow and
    Breezy

  • Monday

    Monday: A 30 percent chance of snow, mainly before 1pm. Cloudy, with a high near 27. Blustery, with a west northwest wind 25 to 29 mph, with gusts as high as 44 mph.

    High: 27 °F

    Chance Snow
    and Blustery

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 12. Wind chill values between -3 and 7. Blustery, with a west northwest wind 16 to 22 mph, with gusts as high as 33 mph.

    Low: 12 °F

    Mostly Cloudy
    and Blustery

  • Tuesday

    Tuesday: Partly sunny, with a high near 27. West northwest wind 7 to 14 mph, with gusts as high as 22 mph.

    High: 27 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of snow after 1am. Mostly cloudy, with a low around 23. Light south southwest wind becoming south 9 to 14 mph in the evening. Winds could gust as high as 24 mph.

    Low: 23 °F

    Mostly Cloudy
    then Chance
    Snow

  • Wednesday

    Wednesday: Partly sunny, with a high near 51. South wind 13 to 16 mph, with gusts as high as 26 mph.

    High: 51 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
A 40 percent chance of showers and thunderstorms. Cloudy, with a high near 67. Windy, with a south southwest wind around 31 mph, with gusts as high as 50 mph.
Tonight
Rain showers before midnight, then a chance of snow after 3am. Some thunder is also possible. Low around 23. Windy, with a west wind 26 to 31 mph, with gusts as high as 48 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Monday
A 30 percent chance of snow, mainly before 1pm. Cloudy, with a high near 27. Blustery, with a west northwest wind 25 to 29 mph, with gusts as high as 44 mph.
Monday Night
Mostly cloudy, with a low around 12. Wind chill values between -3 and 7. Blustery, with a west northwest wind 16 to 22 mph, with gusts as high as 33 mph.
Tuesday
Partly sunny, with a high near 27. West northwest wind 7 to 14 mph, with gusts as high as 22 mph.
Tuesday Night
A 40 percent chance of snow after 1am. Mostly cloudy, with a low around 23. Light south southwest wind becoming south 9 to 14 mph in the evening. Winds could gust as high as 24 mph.
Wednesday
Partly sunny, with a high near 51. South wind 13 to 16 mph, with gusts as high as 26 mph.
Wednesday Night
Partly cloudy, with a low around 37.
Thursday
Mostly sunny, with a high near 63.
Thursday Night
Partly cloudy, with a low around 40.
Friday
Mostly sunny, with a high near 68.
Friday Night
Mostly cloudy, with a low around 47.
Saturday
Sunny, with a high near 69.
Saturday Night
Mostly clear, with a low around 44.
Sunday
Mostly sunny, with a high near 66.
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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:
4:36 pm CDT Mar 15, 2026
Forecast Valid:
5pm CDT Mar 15, 2026-6pm CDT Mar 22, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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