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

66°F

19°C

Humidity 70%
Wind Speed S 9 mph
Barometer 29.92 in (1012.6 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 31 Mar 1:53 am CDT
Extended Forecast for

Charleston IL

  • Overnight

    Overnight: Partly cloudy, with a low around 62. South southwest wind around 15 mph, with gusts as high as 28 mph.

    Low: 62 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly after 3pm. Partly sunny, with a high near 78. Breezy, with a south southwest wind 15 to 22 mph, with gusts as high as 34 mph.

    High: 78 °F

    Chance
    T-storms and
    Breezy

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 10pm. Low around 55. South southwest wind 8 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 55 °F

    T-storms
    Likely then
    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm before 1pm, then rain and possibly a thunderstorm after 1pm. High near 68. East wind around 11 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 68 °F

    Showers

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 59. Southeast wind 9 to 14 mph, with gusts as high as 24 mph.

    Low: 59 °F

    Chance Rain

  • Thursday

    Thursday: A chance of rain, then rain likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 76. Breezy, with a south wind 15 to 20 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 41 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.
    Chance Rain
    then Rain
    Likely

  • Thursday Night

    Thursday Night: Rain and possibly a thunderstorm before 4am, then rain likely. Low around 59. South southwest wind 11 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 59 °F

    Rain

  • Friday

    Friday: A 50 percent chance of rain. Mostly cloudy, with a high near 75.

    High: 75 °F

    Chance Rain

  • Friday Night

    Friday Night: A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 60. Chance of precipitation is 70%.

    Low: 60 °F

    Chance
    T-storms then
    Rain Likely

Detailed Forecast

Overnight
Partly cloudy, with a low around 62. South southwest wind around 15 mph, with gusts as high as 28 mph.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after 3pm. Partly sunny, with a high near 78. Breezy, with a south southwest wind 15 to 22 mph, with gusts as high as 34 mph.
Tuesday Night
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 10pm. Low around 55. South southwest wind 8 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers and possibly a thunderstorm before 1pm, then rain and possibly a thunderstorm after 1pm. High near 68. East wind around 11 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 59. Southeast wind 9 to 14 mph, with gusts as high as 24 mph.
Thursday
A chance of rain, then rain likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 76. Breezy, with a south wind 15 to 20 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 41 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
Rain and possibly a thunderstorm before 4am, then rain likely. Low around 59. South southwest wind 11 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Friday
A 50 percent chance of rain. Mostly cloudy, with a high near 75.
Friday Night
A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 60. Chance of precipitation is 70%.
Saturday
Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 70. Breezy. Chance of precipitation is 70%.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 40.
Sunday
A chance of rain. Partly sunny, with a high near 53.
Sunday Night
Partly cloudy, with a low around 33.
Monday
Sunny, with a high near 57.
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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:
2:16 am CDT Mar 31, 2026
Forecast Valid:
2am CDT Mar 31, 2026-6pm CDT Apr 6, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation