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

45°F

7°C

Humidity 90%
Wind Speed NW 12 mph
Barometer 29.84 in (1010.4 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 11 Nov 10:53 pm CST
Extended Forecast for

Lerna IL

  • Tonight

    Tonight: Partly cloudy, with a low around 40. Northwest wind 8 to 14 mph, with gusts as high as 23 mph.

    Low: 40 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of rain between 11am and 5pm. Partly sunny, with a high near 48. North northwest wind 9 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.

    High: 48 °F

    Slight Chance
    Rain

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 31. North northwest wind 11 to 14 mph, with gusts as high as 23 mph.

    Low: 31 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 44. North northwest wind 9 to 13 mph, with gusts as high as 20 mph.

    High: 44 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Clear, with a low around 26. North northwest wind 5 to 7 mph.

    Low: 26 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 46. Northwest wind around 5 mph becoming calm in the afternoon.

    High: 46 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 25. Calm wind.

    Low: 25 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 49.

    High: 49 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 40. Northwest wind 8 to 14 mph, with gusts as high as 23 mph.
Thursday
A slight chance of rain between 11am and 5pm. Partly sunny, with a high near 48. North northwest wind 9 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 31. North northwest wind 11 to 14 mph, with gusts as high as 23 mph.
Friday
Mostly sunny, with a high near 44. North northwest wind 9 to 13 mph, with gusts as high as 20 mph.
Friday Night
Clear, with a low around 26. North northwest wind 5 to 7 mph.
Saturday
Sunny, with a high near 46. Northwest wind around 5 mph becoming calm in the afternoon.
Saturday Night
Mostly clear, with a low around 25. Calm wind.
Sunday
Sunny, with a high near 49.
Sunday Night
Mostly clear, with a low around 27.
Monday
Sunny, with a high near 50.
Monday Night
Mostly clear, with a low around 27.
Tuesday
Sunny, with a high near 51.
Tuesday Night
Clear, with a low around 28.
Wednesday
Sunny, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lerna IL
 39.4°N 88.28°W (Elev. 699 ft)
Last Update:
10:21 pm CST Nov 11, 2026
Forecast Valid:
11pm CST Nov 11, 2026-6pm CST Nov 18, 2026
 
Forecast Discussion
 
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Additional Resources

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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