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.

Fair

29°F

-2°C

Humidity 92%
Wind Speed SE 6 mph
Barometer 29.96 in (1015.3 mb)
Dewpoint 27°F (-3°C)
Visibility 8.00 mi
Wind Chill23°F (-5°C)
Last update 6 Dec 7:53 pm CST
Extended Forecast for

Lerna IL

Winter Weather Advisory December 6, 09:00pm until December 7, 06:00am
Click here for hazard details and duration
Winter Weather Advisory

  • Tonight

    Tonight: A slight chance of freezing rain between midnight and 1am, then a slight chance of rain after 1am. Patchy fog after midnight. Otherwise, cloudy, with a low around 28. South southeast wind around 6 mph. Chance of precipitation is 20%.

    Low: 28 °F

    Cloudy then
    Slight Chance
    Rain/Freezing
    Rain and
    Patchy Fog

  • Sunday

    Sunday: A slight chance of rain before noon, then a slight chance of drizzle between noon and 3pm. Patchy fog before 11am. Otherwise, cloudy, with a high near 36. South wind 6 to 14 mph becoming north in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 20%.

    High: 36 °F

    Slight Chance
    Rain and
    Patchy Fog

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 15. North northeast wind 7 to 11 mph, with gusts as high as 18 mph.

    Low: 15 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 26. North northeast wind 5 to 7 mph becoming calm in the afternoon.

    High: 26 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 17. Light southeast wind becoming south southwest 9 to 14 mph in the evening. Winds could gust as high as 22 mph.

    Low: 17 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 42. South southwest wind around 14 mph, with gusts as high as 23 mph.

    High: 42 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 36. Breezy, with a southwest wind 14 to 20 mph, with gusts as high as 28 mph.

    Low: 36 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 42.

    High: 42 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 22.

    Low: 22 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A slight chance of freezing rain between midnight and 1am, then a slight chance of rain after 1am. Patchy fog after midnight. Otherwise, cloudy, with a low around 28. South southeast wind around 6 mph. Chance of precipitation is 20%.
Sunday
A slight chance of rain before noon, then a slight chance of drizzle between noon and 3pm. Patchy fog before 11am. Otherwise, cloudy, with a high near 36. South wind 6 to 14 mph becoming north in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 20%.
Sunday Night
Mostly cloudy, with a low around 15. North northeast wind 7 to 11 mph, with gusts as high as 18 mph.
Monday
Mostly sunny, with a high near 26. North northeast wind 5 to 7 mph becoming calm in the afternoon.
Monday Night
Partly cloudy, with a low around 17. Light southeast wind becoming south southwest 9 to 14 mph in the evening. Winds could gust as high as 22 mph.
Tuesday
Partly sunny, with a high near 42. South southwest wind around 14 mph, with gusts as high as 23 mph.
Tuesday Night
Mostly cloudy, with a low around 36. Breezy, with a southwest wind 14 to 20 mph, with gusts as high as 28 mph.
Wednesday
Mostly cloudy, with a high near 42.
Wednesday Night
Mostly cloudy, with a low around 22.
Thursday
A 30 percent chance of snow before noon. Mostly cloudy, with a high near 31.
Thursday Night
Mostly cloudy, with a low around 15.
Friday
Partly sunny, with a high near 23.
Friday Night
Mostly cloudy, with a low around 2.
Saturday
Mostly sunny, with a high near 16.
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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:
6:36 pm CST Dec 6, 2025
Forecast Valid:
8pm CST Dec 6, 2025-6pm CST Dec 13, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation