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

55°F

13°C

Humidity 83%
Wind Speed S 14 G 23 mph
Barometer 29.60 in (1002.3 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 18 Feb 5:53 am CST
Extended Forecast for

Lerna IL

  • Today

    Today: Mostly cloudy through mid morning, then gradual clearing, with a high near 66. West wind 10 to 18 mph, with gusts as high as 32 mph.

    High: 66 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 47. South wind 7 to 9 mph, with gusts as high as 15 mph.

    Low: 47 °F

    Increasing
    Clouds

  • Thursday

    Thursday: A chance of showers, then showers and thunderstorms likely after noon. Mostly cloudy, with a high near 64. South southeast wind 8 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 64 °F

    Chance
    Showers then
    T-storms
    Likely

  • Thursday Night

    Thursday Night: A 30 percent chance of showers before midnight. Partly cloudy, with a low around 36. South wind 11 to 18 mph becoming west after midnight. Winds could gust as high as 30 mph.

    Low: 36 °F

    Chance
    Showers then
    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 45. Breezy, with a west wind 16 to 21 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 33 mph.

    High: 45 °F

    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 26. West northwest wind 6 to 8 mph, with gusts as high as 15 mph.

    Low: 26 °F

    Mostly Clear

  • Saturday

    Saturday: A 30 percent chance of snow after noon. Partly sunny, with a high near 39. Northwest wind 7 to 11 mph, with gusts as high as 17 mph.

    High: 39 °F

    Partly Sunny
    then Chance
    Snow

  • Saturday Night

    Saturday Night: A 30 percent chance of snow before midnight. Partly cloudy, with a low around 23.

    Low: 23 °F

    Chance Snow
    then Partly
    Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 33. Breezy.

    High: 33 °F

    Partly Sunny
    then Mostly
    Sunny and
    Breezy

Detailed Forecast

Today
Mostly cloudy through mid morning, then gradual clearing, with a high near 66. West wind 10 to 18 mph, with gusts as high as 32 mph.
Tonight
Increasing clouds, with a low around 47. South wind 7 to 9 mph, with gusts as high as 15 mph.
Thursday
A chance of showers, then showers and thunderstorms likely after noon. Mostly cloudy, with a high near 64. South southeast wind 8 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A 30 percent chance of showers before midnight. Partly cloudy, with a low around 36. South wind 11 to 18 mph becoming west after midnight. Winds could gust as high as 30 mph.
Friday
Sunny, with a high near 45. Breezy, with a west wind 16 to 21 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 33 mph.
Friday Night
Mostly clear, with a low around 26. West northwest wind 6 to 8 mph, with gusts as high as 15 mph.
Saturday
A 30 percent chance of snow after noon. Partly sunny, with a high near 39. Northwest wind 7 to 11 mph, with gusts as high as 17 mph.
Saturday Night
A 30 percent chance of snow before midnight. Partly cloudy, with a low around 23.
Sunday
Mostly sunny, with a high near 33. Breezy.
Sunday Night
Mostly clear, with a low around 17.
Monday
Mostly sunny, with a high near 32.
Monday Night
Mostly clear, with a low around 17.
Tuesday
Mostly sunny, with a high near 39.
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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:
5:36 am CST Feb 18, 2026
Forecast Valid:
6am CST Feb 18, 2026-6pm CST Feb 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation