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

67°F

19°C

Humidity 73%
Wind Speed SW 9 mph
Barometer 29.71 in (1005.6 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 22 Mar 8:53 am CDT
Extended Forecast for

Charleston IL

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 83. Breezy, with a west southwest wind 11 to 20 mph becoming north in the afternoon. Winds could gust as high as 29 mph.

    High: 83 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms and
    Breezy

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 32. Breezy, with a north wind 15 to 25 mph, with gusts as high as 39 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 32 °F

    Showers
    Likely and
    Breezy then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 51. North northeast wind 9 to 13 mph, with gusts as high as 22 mph.

    High: 51 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 34. East northeast wind around 6 mph.

    Low: 34 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 60. South southeast wind around 7 mph.

    High: 60 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 42. South southeast wind around 6 mph.

    Low: 42 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 68. South wind 6 to 11 mph, with gusts as high as 18 mph.

    High: 68 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A chance of rain and thunderstorms. Mostly cloudy, with a low around 55. Chance of precipitation is 30%.

    Low: 55 °F

    Chance
    T-storms

  • Thursday

    Thursday: A 30 percent chance of rain after 1pm. Mostly sunny, with a high near 81.

    High: 81 °F

    Sunny then
    Chance Rain

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 83. Breezy, with a west southwest wind 11 to 20 mph becoming north in the afternoon. Winds could gust as high as 29 mph.
Tonight
Showers and thunderstorms likely, mainly before 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 32. Breezy, with a north wind 15 to 25 mph, with gusts as high as 39 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Mostly sunny, with a high near 51. North northeast wind 9 to 13 mph, with gusts as high as 22 mph.
Monday Night
Mostly cloudy, with a low around 34. East northeast wind around 6 mph.
Tuesday
Mostly sunny, with a high near 60. South southeast wind around 7 mph.
Tuesday Night
Mostly cloudy, with a low around 42. South southeast wind around 6 mph.
Wednesday
Mostly cloudy, with a high near 68. South wind 6 to 11 mph, with gusts as high as 18 mph.
Wednesday Night
A chance of rain and thunderstorms. Mostly cloudy, with a low around 55. Chance of precipitation is 30%.
Thursday
A 30 percent chance of rain after 1pm. Mostly sunny, with a high near 81.
Thursday Night
A chance of rain and thunderstorms. Mostly cloudy, with a low around 38. Chance of precipitation is 50%.
Friday
A chance of rain. Partly sunny, with a high near 48.
Friday Night
Mostly clear, with a low around 29.
Saturday
Mostly sunny, with a high near 53.
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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:
9:37 am CDT Mar 22, 2026
Forecast Valid:
9am CDT Mar 22, 2026-6pm CDT Mar 28, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation