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.

Fog/Mist

63°F

17°C

Humidity 97%
Wind Speed S 10 mph
Barometer 29.88 in (1011.5 mb)
Dewpoint 62°F (17°C)
Visibility 4.00 mi
Last update 10 Mar 7:53 am CDT
Extended Forecast for

Lerna IL

  • Today

    Today: Partly sunny, with a high near 75. South southwest wind 11 to 18 mph, with gusts as high as 26 mph.

    High: 75 °F

    Partly Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4am. Low around 61. South southwest wind around 18 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 61 °F

    Chance
    T-storms then
    T-storms

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm before 1pm, then showers likely. Temperature falling to around 47 by 5pm. Breezy, with a southwest wind 18 to 22 mph becoming northwest in the afternoon. Winds could gust as high as 34 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 67 °F⇓

    Breezy.
    T-storms then
    Showers

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 31. Blustery, with a north northwest wind 10 to 20 mph, with gusts as high as 31 mph.

    Low: 31 °F

    Chance
    Showers and
    Blustery then
    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 49. Northwest wind 6 to 10 mph becoming west southwest in the afternoon. Winds could gust as high as 16 mph.

    High: 49 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 41. Breezy, with a south wind 9 to 14 mph increasing to 18 to 23 mph after midnight. Winds could gust as high as 38 mph.

    Low: 41 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Friday

    Friday: Mostly cloudy, with a high near 57. Breezy, with a southwest wind 16 to 22 mph becoming west northwest in the afternoon. Winds could gust as high as 36 mph.

    High: 57 °F

    Mostly Cloudy
    and Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 59.

    High: 59 °F

    Partly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 75. South southwest wind 11 to 18 mph, with gusts as high as 26 mph.
Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4am. Low around 61. South southwest wind around 18 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers and possibly a thunderstorm before 1pm, then showers likely. Temperature falling to around 47 by 5pm. Breezy, with a southwest wind 18 to 22 mph becoming northwest in the afternoon. Winds could gust as high as 34 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday Night
A 30 percent chance of showers before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 31. Blustery, with a north northwest wind 10 to 20 mph, with gusts as high as 31 mph.
Thursday
Sunny, with a high near 49. Northwest wind 6 to 10 mph becoming west southwest in the afternoon. Winds could gust as high as 16 mph.
Thursday Night
Mostly cloudy, with a low around 41. Breezy, with a south wind 9 to 14 mph increasing to 18 to 23 mph after midnight. Winds could gust as high as 38 mph.
Friday
Mostly cloudy, with a high near 57. Breezy, with a southwest wind 16 to 22 mph becoming west northwest in the afternoon. Winds could gust as high as 36 mph.
Friday Night
Mostly cloudy, with a low around 35.
Saturday
Partly sunny, with a high near 59.
Saturday Night
Mostly cloudy, with a low around 47.
Sunday
Rain. Cloudy, with a high near 59. Breezy.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 21. Blustery.
Monday
Partly sunny, with a high near 32.
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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:
7:36 am CDT Mar 10, 2026
Forecast Valid:
8am CDT Mar 10, 2026-6pm CDT Mar 16, 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