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.

Mostly Cloudy

73°F

23°C

Humidity 55%
Wind Speed S 5 mph
Barometer 29.88 in (1011.5 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 31 Mar 7:53 pm CDT
Extended Forecast for

Charleston IL

  • Tonight

    Tonight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Low around 51. Southwest wind 6 to 14 mph becoming northeast after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 51 °F

    Showers
    Likely then
    T-storms

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 64. Northeast wind around 9 mph, with gusts as high as 17 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 64 °F

    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. East wind 8 to 14 mph becoming south after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 30%.

    Low: 58 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 76. Breezy, with a south wind 17 to 22 mph increasing to 23 to 28 mph in the afternoon. Winds could gust as high as 44 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 76 °F

    Breezy.
    Mostly Cloudy
    then Showers
    Likely

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Low around 60. Breezy, with a south southwest wind 16 to 21 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Showers and
    Breezy

  • Friday

    Friday: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely after 1pm. Mostly cloudy, with a high near 77. South wind 8 to 14 mph, with gusts as high as 23 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
    T-storms then
    Showers
    Likely

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 56. South wind 13 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 56 °F

    Chance
    T-storms then
    Showers

  • Saturday

    Saturday: Showers and possibly a thunderstorm. High near 66. Breezy. Chance of precipitation is 80%.

    High: 66 °F

    Showers and
    Breezy

  • Saturday Night

    Saturday Night: A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 36.

    Low: 36 °F

    Chance
    Showers

Detailed Forecast

Tonight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Low around 51. Southwest wind 6 to 14 mph becoming northeast after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers and possibly a thunderstorm. High near 64. Northeast wind around 9 mph, with gusts as high as 17 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. East wind 8 to 14 mph becoming south after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 30%.
Thursday
Showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 76. Breezy, with a south wind 17 to 22 mph increasing to 23 to 28 mph in the afternoon. Winds could gust as high as 44 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and possibly a thunderstorm. Low around 60. Breezy, with a south southwest wind 16 to 21 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely after 1pm. Mostly cloudy, with a high near 77. South wind 8 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 56. South wind 13 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
Showers and possibly a thunderstorm. High near 66. Breezy. Chance of precipitation is 80%.
Saturday Night
A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 36.
Sunday
Partly sunny, with a high near 50.
Sunday Night
Mostly clear, with a low around 31.
Monday
Sunny, with a high near 58.
Monday Night
Mostly clear, with a low around 39.
Tuesday
Mostly sunny, with a high near 64.
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ABOUT THIS FORECAST

 
Point Forecast:
Charleston IL
 39.5°N 88.19°W (Elev. 650 ft)
Last Update:
7:51 pm CDT Mar 31, 2026
Forecast Valid:
8pm CDT Mar 31, 2026-6pm CDT Apr 7, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation