Current conditions at

Mattoon / Charleston, Coles County Memorial Airport (KMTO)

Lat: 39.48°NLon: 88.28°WElev: 722ft.

Fair

54°F

12°C

Humidity 29%
Wind Speed SE 6 mph
Barometer 30.30 in (1026.5 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 24 Mar 1:53 pm CDT
Extended Forecast for

Lerna IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 57. Southeast wind around 7 mph.

    High: 57 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 40. Southeast wind around 7 mph.

    Low: 40 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 70. South southwest wind 7 to 15 mph, with gusts as high as 24 mph.

    High: 70 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms after 1am.  Mostly cloudy, with a low around 59. South wind 10 to 13 mph, with gusts as high as 23 mph.

    Low: 59 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 83. Southwest wind 13 to 18 mph, with gusts as high as 30 mph.

    High: 83 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers and thunderstorms before 10pm, then showers and possibly a thunderstorm between 10pm and 4am, then showers after 4am.  Low around 38. Southwest wind 14 to 18 mph becoming north northeast after midnight. Winds could gust as high as 30 mph.  Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 38 °F

    T-storms then
    Showers

  • Friday

    Friday: Partly sunny, with a high near 48. North wind 15 to 18 mph, with gusts as high as 29 mph.

    High: 48 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 28.

    Low: 28 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 57. Southeast wind around 7 mph.
Tonight
Mostly cloudy, with a low around 40. Southeast wind around 7 mph.
Wednesday
Mostly sunny, with a high near 70. South southwest wind 7 to 15 mph, with gusts as high as 24 mph.
Wednesday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 59. South wind 10 to 13 mph, with gusts as high as 23 mph.
Thursday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 83. Southwest wind 13 to 18 mph, with gusts as high as 30 mph.
Thursday Night
Showers and thunderstorms before 10pm, then showers and possibly a thunderstorm between 10pm and 4am, then showers after 4am. Low around 38. Southwest wind 14 to 18 mph becoming north northeast after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
Partly sunny, with a high near 48. North wind 15 to 18 mph, with gusts as high as 29 mph.
Friday Night
Mostly clear, with a low around 28.
Saturday
Sunny, with a high near 54.
Saturday Night
Mostly clear, with a low around 36.
Sunday
Partly sunny, with a high near 60.
Sunday Night
Mostly cloudy, with a low around 46.
Monday
Mostly sunny, with a high near 73.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Lerna IL
 39.42°N 88.28°W (Elev. 741 ft)
1:56 pm CDT Mar 24, 2026
2pm CDT Mar 24, 2026-6pm CDT Mar 30, 2026
 
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