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.

Light Rain

65°F

18°C

Humidity 56%
Wind Speed S 12 mph
Barometer 29.90 in (1012.3 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 25 Mar 9:53 pm CDT
Extended Forecast for

Lerna IL

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms before 4am. Mostly cloudy, with a low around 58. South wind around 14 mph, with gusts as high as 24 mph.

    Low: 58 °F

    Chance
    T-storms

  • Thursday

    Thursday: Sunny, with a high near 83. Breezy, with a south southwest wind 13 to 20 mph, with gusts as high as 32 mph.

    High: 83 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 10pm, then showers and possibly a thunderstorm between 10pm and 4am, then showers likely after 4am. Low around 40. South southwest wind 15 to 18 mph becoming north northeast after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 40 °F

    Showers

  • Friday

    Friday: Showers likely before 7am. Partly sunny, with a high near 48. North wind around 18 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 48 °F

    Showers
    Likely then
    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 28. North northwest wind 6 to 13 mph, with gusts as high as 21 mph.

    Low: 28 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 50. North wind around 7 mph becoming south southeast in the afternoon.

    High: 50 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 36. South southeast wind 6 to 9 mph, with gusts as high as 16 mph.

    Low: 36 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 60.

    High: 60 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A 50 percent chance of showers and thunderstorms before 4am. Mostly cloudy, with a low around 58. South wind around 14 mph, with gusts as high as 24 mph.
Thursday
Sunny, with a high near 83. Breezy, with a south southwest wind 13 to 20 mph, with gusts as high as 32 mph.
Thursday Night
A chance of showers and thunderstorms before 10pm, then showers and possibly a thunderstorm between 10pm and 4am, then showers likely after 4am. Low around 40. South southwest wind 15 to 18 mph becoming north northeast after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Friday
Showers likely before 7am. Partly sunny, with a high near 48. North wind around 18 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Mostly clear, with a low around 28. North northwest wind 6 to 13 mph, with gusts as high as 21 mph.
Saturday
Sunny, with a high near 50. North wind around 7 mph becoming south southeast in the afternoon.
Saturday Night
Partly cloudy, with a low around 36. South southeast wind 6 to 9 mph, with gusts as high as 16 mph.
Sunday
Partly sunny, with a high near 60.
Sunday Night
Mostly cloudy, with a low around 50.
Monday
Mostly sunny, with a high near 72.
Monday Night
A chance of showers. Mostly cloudy, with a low around 57.
Tuesday
A chance of showers. Partly sunny, with a high near 75.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 60.
Wednesday
A chance of showers. Partly sunny, with a high near 73. Breezy.
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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:
6:37 pm CDT Mar 25, 2026
Forecast Valid:
10pm CDT Mar 25, 2026-6pm CDT Apr 1, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation