National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Mattoon / Charleston, Coles County Memorial Airport (KMTO)

Lat: 39.48°NLon: 88.28°WElev: 722ft.

Fair

53°F

12°C

Humidity 64%
Wind Speed S 9 mph
Barometer 30.07 in (1018.0 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 9 Nov 11:53 pm CST
Extended Forecast for

Lerna IL

  • Overnight

    Overnight: Clear, with a low around 45. West southwest wind around 7 mph, with gusts as high as 16 mph.

    Low: 45 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 67. West wind around 6 mph becoming calm in the afternoon.

    High: 67 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 42. Light and variable wind.

    Low: 42 °F

    Increasing
    Clouds

  • Veterans Day

    Veterans Day: A 50 percent chance of showers after noon. Partly sunny, with a high near 65. Light and variable wind becoming south southwest 5 to 9 mph in the morning. Winds could gust as high as 17 mph.

    High: 65 °F

    Mostly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers before midnight. Mostly cloudy, with a low around 41. North northwest wind 9 to 16 mph, with gusts as high as 21 mph.

    Low: 41 °F

    Chance
    Showers then
    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 48. North northwest wind around 16 mph, with gusts as high as 24 mph.

    High: 48 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 30. North northwest wind 11 to 15 mph, with gusts as high as 21 mph.

    Low: 30 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 26.

    Low: 26 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a low around 45. West southwest wind around 7 mph, with gusts as high as 16 mph.
Tuesday
Sunny, with a high near 67. West wind around 6 mph becoming calm in the afternoon.
Tuesday Night
Increasing clouds, with a low around 42. Light and variable wind.
Veterans Day
A 50 percent chance of showers after noon. Partly sunny, with a high near 65. Light and variable wind becoming south southwest 5 to 9 mph in the morning. Winds could gust as high as 17 mph.
Wednesday Night
A 40 percent chance of showers before midnight. Mostly cloudy, with a low around 41. North northwest wind 9 to 16 mph, with gusts as high as 21 mph.
Thursday
Partly sunny, with a high near 48. North northwest wind around 16 mph, with gusts as high as 24 mph.
Thursday Night
Mostly cloudy, with a low around 30. North northwest wind 11 to 15 mph, with gusts as high as 21 mph.
Friday
Mostly sunny, with a high near 44.
Friday Night
Mostly clear, with a low around 26.
Saturday
Sunny, with a high near 48.
Saturday Night
Mostly clear, with a low around 29.
Sunday
Sunny, with a high near 53.
Sunday Night
Partly cloudy, with a low around 35.
Monday
Mostly sunny, with a high near 58.
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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:
9:36 pm CST Nov 9, 2026
Forecast Valid:
12am CST Nov 10, 2026-6pm CST Nov 16, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database Weather Element Forecast

Chance of Precipitation