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.

Light Rain

67°F

19°C

Humidity 57%
Wind Speed SW 8 mph
Barometer 29.94 in (1013.6 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 12 May 10:53 pm CDT
Extended Forecast for

2 Miles ENE Lerna IL

  • Tonight

    Tonight: A chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 3am. Cloudy early, then gradual clearing, with a low around 56. Southwest wind 9 to 11 mph becoming northwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 50%.

    Low: 56 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Sunny, with a high near 68. North northwest wind 11 to 18 mph, with gusts as high as 29 mph.

    High: 68 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 43. North northwest wind 9 to 14 mph becoming light north northeast after midnight. Winds could gust as high as 21 mph.

    Low: 43 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 69. Light north wind.

    High: 69 °F

    Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of showers after 1am. Increasing clouds, with a low around 51. Light south southeast wind increasing to 6 to 11 mph in the evening. Winds could gust as high as 20 mph.

    Low: 51 °F

    Partly Cloudy
    then Chance
    Showers

  • Friday

    Friday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Partly sunny, with a high near 76. South southeast wind 14 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 50%.

    High: 76 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 62. South wind around 9 mph, with gusts as high as 17 mph.

    Low: 62 °F

    Chance
    T-storms

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 40%.

    Low: 64 °F

    Chance
    T-storms

Detailed Forecast

Tonight
A chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 3am. Cloudy early, then gradual clearing, with a low around 56. Southwest wind 9 to 11 mph becoming northwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 50%.
Wednesday
Sunny, with a high near 68. North northwest wind 11 to 18 mph, with gusts as high as 29 mph.
Wednesday Night
Mostly clear, with a low around 43. North northwest wind 9 to 14 mph becoming light north northeast after midnight. Winds could gust as high as 21 mph.
Thursday
Sunny, with a high near 69. Light north wind.
Thursday Night
A 30 percent chance of showers after 1am. Increasing clouds, with a low around 51. Light south southeast wind increasing to 6 to 11 mph in the evening. Winds could gust as high as 20 mph.
Friday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Partly sunny, with a high near 76. South southeast wind 14 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 50%.
Friday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 62. South wind around 9 mph, with gusts as high as 17 mph.
Saturday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 84.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 40%.
Sunday
Mostly sunny, with a high near 84.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Monday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 86. Breezy.
Monday Night
Showers likely. Mostly cloudy, with a low around 67.
Tuesday
Showers likely. Mostly cloudy, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Lerna IL
 39.44°N 88.25°W (Elev. 699 ft)
Last Update:
10:36 pm CDT May 12, 2026
Forecast Valid:
11pm CDT May 12, 2026-6pm CDT May 19, 2026
 
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