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.

Mostly Cloudy

50°F

10°C

Humidity 50%
Wind Speed NW 9 mph
Barometer 30.07 in (1018.7 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 1 Nov 2:53 pm CDT
Extended Forecast for

Lerna IL

  • This Afternoon

    This Afternoon: Isolated showers after 4pm. Mostly cloudy, with a high near 52. West wind around 7 mph. Chance of precipitation is 20%.

    High: 52 °F

    Isolated
    Showers

  • Tonight

    Tonight: Isolated showers before 7pm. Mostly cloudy, with a low around 33. Light northwest wind. Chance of precipitation is 10%.

    Low: 33 °F

    Isolated
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 56. Light and variable wind becoming south southwest around 5 mph in the afternoon.

    High: 56 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 34. Calm wind becoming southwest around 6 mph after midnight.

    Low: 34 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 61. Southwest wind 6 to 10 mph, with gusts as high as 16 mph.

    High: 61 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 35. West wind around 5 mph becoming calm in the evening.

    Low: 35 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 63. Light south southeast wind becoming south 6 to 11 mph in the morning. Winds could gust as high as 17 mph.

    High: 63 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

Detailed Forecast

This Afternoon
Isolated showers after 4pm. Mostly cloudy, with a high near 52. West wind around 7 mph. Chance of precipitation is 20%.
Tonight
Isolated showers before 7pm. Mostly cloudy, with a low around 33. Light northwest wind. Chance of precipitation is 10%.
Sunday
Sunny, with a high near 56. Light and variable wind becoming south southwest around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 34. Calm wind becoming southwest around 6 mph after midnight.
Monday
Sunny, with a high near 61. Southwest wind 6 to 10 mph, with gusts as high as 16 mph.
Monday Night
Mostly clear, with a low around 35. West wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 63. Light south southeast wind becoming south 6 to 11 mph in the morning. Winds could gust as high as 17 mph.
Tuesday Night
Partly cloudy, with a low around 46.
Wednesday
Sunny, with a high near 67.
Wednesday Night
Mostly clear, with a low around 37.
Thursday
Mostly sunny, with a high near 62.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 48.
Friday
A chance of rain. Mostly sunny, with a high near 67.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lerna IL
 39.42°N 88.25°W (Elev. 712 ft)
Last Update:
2:01 pm CDT Nov 1, 2025
Forecast Valid:
3pm CDT Nov 1, 2025-6pm CST Nov 7, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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