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

41°F

5°C

Humidity 93%
Wind Speed NE 5 mph
Barometer 30.36 in (1028.1 mb)
Dewpoint 39°F (4°C)
Visibility 8.00 mi
Wind Chill38°F (3°C)
Last update 11 Apr 4:53 am CDT
Extended Forecast for

Charleston IL

  • Today

    Today: Increasing clouds, with a high near 67. East wind 6 to 9 mph, with gusts as high as 16 mph.

    High: 67 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Mostly cloudy, with a low around 56. East southeast wind 7 to 10 mph, with gusts as high as 20 mph.

    Low: 56 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 79. Breezy, with a south southwest wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 34 mph.

    High: 79 °F

    Partly Sunny
    then Mostly
    Cloudy and
    Breezy

  • Sunday Night

    Sunday Night: Showers likely, with thunderstorms also possible after 4am. Mostly cloudy, with a low around 64. South southwest wind 16 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 64 °F

    Chance
    Showers then
    Showers
    Likely

  • Monday

    Monday: A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 79. South southwest wind 15 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.

    High: 79 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 66. South southwest wind around 14 mph, with gusts as high as 24 mph.

    Low: 66 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 83. Breezy, with a south southwest wind 13 to 20 mph, with gusts as high as 30 mph.

    High: 83 °F

    Partly Sunny
    then Partly
    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 50%.

    Low: 67 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 81. Chance of precipitation is 60%.

    High: 81 °F

    Showers
    Likely

Detailed Forecast

Today
Increasing clouds, with a high near 67. East wind 6 to 9 mph, with gusts as high as 16 mph.
Tonight
Mostly cloudy, with a low around 56. East southeast wind 7 to 10 mph, with gusts as high as 20 mph.
Sunday
Partly sunny, with a high near 79. Breezy, with a south southwest wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 34 mph.
Sunday Night
Showers likely, with thunderstorms also possible after 4am. Mostly cloudy, with a low around 64. South southwest wind 16 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 79. South southwest wind 15 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.
Monday Night
Mostly cloudy, with a low around 66. South southwest wind around 14 mph, with gusts as high as 24 mph.
Tuesday
Partly sunny, with a high near 83. Breezy, with a south southwest wind 13 to 20 mph, with gusts as high as 30 mph.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 50%.
Wednesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 81. Chance of precipitation is 60%.
Wednesday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Thursday
Showers likely. Mostly cloudy, with a high near 77.
Thursday Night
A chance of showers. Partly cloudy, with a low around 60.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 79.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Charleston IL
 39.5°N 88.19°W (Elev. 650 ft)
Last Update:
4:36 am CDT Apr 11, 2026
Forecast Valid:
4am CDT Apr 11, 2026-6pm CDT Apr 17, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation