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.

Fair

47°F

8°C

Humidity 71%
Wind Speed N 6 mph
Barometer 30.19 in (1022.0 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 11 May 4:53 am CDT
Extended Forecast for

Charleston IL

  • Today

    Today: Mostly sunny, with a high near 79. East wind 8 to 10 mph, with gusts as high as 15 mph.

    High: 79 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 59. East wind around 8 mph, with gusts as high as 15 mph.

    Low: 59 °F

    Partly Cloudy

  • Monday

    Monday: Showers likely, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 73. East southeast wind 7 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 73 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly cloudy, with a low around 60. East southeast wind 3 to 6 mph. Chance of precipitation is 30%.

    Low: 60 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 77. South southeast wind 3 to 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Chance
    Showers then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 59. Light south southeast wind.

    Low: 59 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 81. Light southeast wind becoming south 5 to 9 mph in the morning. Winds could gust as high as 15 mph.

    High: 81 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 79. East wind 8 to 10 mph, with gusts as high as 15 mph.
Tonight
Partly cloudy, with a low around 59. East wind around 8 mph, with gusts as high as 15 mph.
Monday
Showers likely, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 73. East southeast wind 7 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly cloudy, with a low around 60. East southeast wind 3 to 6 mph. Chance of precipitation is 30%.
Tuesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 77. South southeast wind 3 to 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Partly cloudy, with a low around 59. Light south southeast wind.
Wednesday
Mostly sunny, with a high near 81. Light southeast wind becoming south 5 to 9 mph in the morning. Winds could gust as high as 15 mph.
Wednesday Night
Partly cloudy, with a low around 66.
Thursday
Mostly sunny, with a high near 87.
Thursday Night
A 30 percent chance of showers before 1am. Partly cloudy, with a low around 65.
Friday
Sunny, with a high near 84.
Friday Night
A chance of showers. Partly cloudy, with a low around 60.
Saturday
Mostly sunny, with a high near 80.
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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:
4:41 am CDT May 11, 2025
Forecast Valid:
5am CDT May 11, 2025-6pm CDT May 17, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation