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.

Overcast

70°F

21°C

Humidity 90%
Wind Speed S 9 mph
Barometer 30.07 in (1017.8 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 6 Oct 10:53 pm CDT
Extended Forecast for

Lerna IL

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 4am, then a slight chance of showers after 5am. Cloudy, with a low around 66. South southwest wind 5 to 7 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.

    Low: 66 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 4pm, then a slight chance of showers. Mostly cloudy, with a high near 75. West southwest wind 5 to 14 mph becoming north in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 30%.

    High: 75 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly cloudy during the early evening, then gradual clearing, with a low around 46. North northeast wind 8 to 11 mph, with gusts as high as 21 mph.

    Low: 46 °F

    Gradual
    Clearing

  • Wednesday

    Wednesday: Sunny, with a high near 70. Northeast wind 7 to 11 mph, with gusts as high as 16 mph.

    High: 70 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 41. Northeast wind around 7 mph.

    Low: 41 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 68. East wind 6 to 8 mph.

    High: 68 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 39. East wind around 5 mph becoming calm in the evening.

    Low: 39 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms before 4am, then a slight chance of showers after 5am. Cloudy, with a low around 66. South southwest wind 5 to 7 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.
Tuesday
A chance of showers and thunderstorms before 4pm, then a slight chance of showers. Mostly cloudy, with a high near 75. West southwest wind 5 to 14 mph becoming north in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy during the early evening, then gradual clearing, with a low around 46. North northeast wind 8 to 11 mph, with gusts as high as 21 mph.
Wednesday
Sunny, with a high near 70. Northeast wind 7 to 11 mph, with gusts as high as 16 mph.
Wednesday Night
Clear, with a low around 41. Northeast wind around 7 mph.
Thursday
Sunny, with a high near 68. East wind 6 to 8 mph.
Thursday Night
Clear, with a low around 39. East wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 72.
Friday Night
Partly cloudy, with a low around 48.
Saturday
Sunny, with a high near 76.
Saturday Night
Mostly clear, with a low around 47.
Sunday
Sunny, with a high near 77.
Sunday Night
Mostly clear, with a low around 51.
Columbus Day
Sunny, with a high near 78.
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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:
10:36 pm CDT Oct 6, 2025
Forecast Valid:
11pm CDT Oct 6, 2025-6pm CDT Oct 13, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation