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.

Fog/Mist

37°F

3°C

Humidity 96%
Wind Speed E 5 mph
Barometer 30.09 in (1019.5 mb)
Dewpoint 36°F (2°C)
Visibility 4.00 mi
Wind Chill33°F (1°C)
Last update 3 Mar 4:53 am CST
Extended Forecast for

Charleston IL

  • Overnight

    Overnight: A 40 percent chance of showers. Areas of fog. Otherwise, cloudy, with a low around 36. Light east southeast wind.

    Low: 36 °F

    Chance
    Showers and
    Areas Fog

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm. Areas of fog. High near 48. Light and variable wind becoming east southeast around 5 mph in the afternoon. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 48 °F

    Showers and
    Areas Fog

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Areas of fog. Low around 44. East northeast wind 5 to 8 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    Low: 44 °F

    Showers and
    Areas Fog

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. Patchy fog before noon. High near 58. East wind 5 to 7 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 58 °F

    Showers and
    Patchy Fog

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Low around 53. South wind 3 to 8 mph. Winds could gust as high as 15 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    Low: 53 °F

    Showers

  • Thursday

    Thursday: Showers, mainly before noon. High near 65. South southwest wind 7 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 65 °F

    Showers then
    Chance
    Showers

  • Thursday Night

    Thursday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 51. West southwest wind 5 to 7 mph becoming south southeast after midnight.

    Low: 51 °F

    Chance
    Showers

  • Friday

    Friday: A 50 percent chance of showers. Mostly cloudy, with a high near 73.

    High: 73 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 58. Chance of precipitation is 70%.

    Low: 58 °F

    Chance
    Showers then
    Showers
    Likely

Detailed Forecast

Overnight
A 40 percent chance of showers. Areas of fog. Otherwise, cloudy, with a low around 36. Light east southeast wind.
Tuesday
Showers and possibly a thunderstorm. Areas of fog. High near 48. Light and variable wind becoming east southeast around 5 mph in the afternoon. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday Night
Showers and possibly a thunderstorm. Areas of fog. Low around 44. East northeast wind 5 to 8 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Wednesday
Showers and possibly a thunderstorm. Patchy fog before noon. High near 58. East wind 5 to 7 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Showers and possibly a thunderstorm. Low around 53. South wind 3 to 8 mph. Winds could gust as high as 15 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Thursday
Showers, mainly before noon. High near 65. South southwest wind 7 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 51. West southwest wind 5 to 7 mph becoming south southeast after midnight.
Friday
A 50 percent chance of showers. Mostly cloudy, with a high near 73.
Friday Night
A chance of showers, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 58. Chance of precipitation is 70%.
Saturday
Showers likely, mainly before noon. Cloudy, with a high near 67. Chance of precipitation is 70%.
Saturday Night
Mostly cloudy, with a low around 42.
Sunday
Mostly sunny, with a high near 62.
Sunday Night
Mostly clear, with a low around 47.
Monday
Sunny, with a high near 68.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Charleston IL
 39.48°N 88.19°W (Elev. 650 ft)
Last Update:
5:11 am CST Mar 3, 2026
Forecast Valid:
5am CST Mar 3, 2026-6pm CDT Mar 9, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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