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

68°F

20°C

Humidity 78%
Wind Speed S 17 G 26 mph
Barometer 29.84 in (1009.9 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 2 Apr 10:53 pm CDT
Extended Forecast for

Charleston IL

  • Tonight

    Tonight: A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. Breezy, with a south southwest wind 15 to 20 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 50%.

    Low: 60 °F

    Chance
    Showers and
    Breezy

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms, mainly between 1pm and 5pm. Mostly cloudy, with a high near 76. South southwest wind 8 to 14 mph, with gusts as high as 25 mph.

    High: 76 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7pm. Low around 58. South wind 10 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 58 °F

    Showers
    Likely then
    T-storms

  • Saturday

    Saturday: Showers and possibly a thunderstorm. High near 66. South southwest wind 14 to 16 mph becoming west in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 66 °F

    Showers

  • Saturday Night

    Saturday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 38. West northwest wind 10 to 13 mph, with gusts as high as 23 mph.

    Low: 38 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Mostly sunny, with a high near 53. West northwest wind 10 to 14 mph, with gusts as high as 23 mph.

    High: 53 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 37. West wind 5 to 7 mph.

    Low: 37 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. Breezy, with a south southwest wind 15 to 20 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 50%.
Friday
A 40 percent chance of showers and thunderstorms, mainly between 1pm and 5pm. Mostly cloudy, with a high near 76. South southwest wind 8 to 14 mph, with gusts as high as 25 mph.
Friday Night
A slight chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7pm. Low around 58. South wind 10 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
Showers and possibly a thunderstorm. High near 66. South southwest wind 14 to 16 mph becoming west in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 38. West northwest wind 10 to 13 mph, with gusts as high as 23 mph.
Sunday
Mostly sunny, with a high near 53. West northwest wind 10 to 14 mph, with gusts as high as 23 mph.
Sunday Night
Mostly clear, with a low around 37. West wind 5 to 7 mph.
Monday
Sunny, with a high near 56.
Monday Night
Mostly clear, with a low around 32.
Tuesday
Sunny, with a high near 50.
Tuesday Night
Partly cloudy, with a low around 34.
Wednesday
Mostly sunny, with a high near 63.
Wednesday Night
Partly cloudy, with a low around 49.
Thursday
Mostly sunny, with a high near 71.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Charleston IL
 39.5°N 88.19°W (Elev. 650 ft)
Last Update:
9:36 pm CDT Apr 2, 2026
Forecast Valid:
11pm CDT Apr 2, 2026-6pm CDT Apr 9, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation