National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Mattoon / Charleston, Coles County Memorial Airport (KMTO)

Lat: 39.48°NLon: 88.28°WElev: 722ft.

Fair

35°F

2°C

Humidity 76%
Wind Speed Calm
Barometer 30.04 in (1017.4 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 28 Feb 5:53 am CST
Extended Forecast for

Mattoon/Charleston, Coles County Memorial Airport IL

  • Today

    Today: Isolated showers after 5pm. Increasing clouds, with a high near 56. North northeast wind 6 to 13 mph becoming east southeast in the afternoon. Chance of precipitation is 20%.

    High: 56 °F

    Mostly Sunny
    then Isolated
    Showers

  • Tonight

    Tonight: Isolated showers before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 27. North wind 7 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    Low: 27 °F

    Isolated
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 40. North northeast wind 10 to 15 mph, with gusts as high as 23 mph.

    High: 40 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: A 50 percent chance of snow. Cloudy, with a low around 26. East northeast wind around 10 mph, with gusts as high as 18 mph.

    Low: 26 °F

    Chance Snow

  • Monday

    Monday: Mostly cloudy, with a high near 41. East southeast wind 9 to 13 mph, with gusts as high as 20 mph.

    High: 41 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Rain likely, mainly after midnight. Cloudy, with a low around 34. Southeast wind 8 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 34 °F

    Chance Rain
    then Rain
    Likely

  • Tuesday

    Tuesday: Rain. High near 53. South wind 11 to 14 mph becoming west in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 53 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain. Low around 43. Chance of precipitation is 80%.

    Low: 43 °F

    Rain

  • Wednesday

    Wednesday: Rain likely and possibly a thunderstorm. Cloudy, with a high near 59. Chance of precipitation is 70%.

    High: 59 °F

    Rain Likely

Detailed Forecast

Today
Isolated showers after 5pm. Increasing clouds, with a high near 56. North northeast wind 6 to 13 mph becoming east southeast in the afternoon. Chance of precipitation is 20%.
Tonight
Isolated showers before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 27. North wind 7 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Sunday
Mostly cloudy, with a high near 40. North northeast wind 10 to 15 mph, with gusts as high as 23 mph.
Sunday Night
A 50 percent chance of snow. Cloudy, with a low around 26. East northeast wind around 10 mph, with gusts as high as 18 mph.
Monday
Mostly cloudy, with a high near 41. East southeast wind 9 to 13 mph, with gusts as high as 20 mph.
Monday Night
Rain likely, mainly after midnight. Cloudy, with a low around 34. Southeast wind 8 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
Rain. High near 53. South wind 11 to 14 mph becoming west in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Tuesday Night
Rain. Low around 43. Chance of precipitation is 80%.
Wednesday
Rain likely and possibly a thunderstorm. Cloudy, with a high near 59. Chance of precipitation is 70%.
Wednesday Night
Rain likely, mainly before midnight. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.
Thursday
A chance of rain. Mostly cloudy, with a high near 63.
Thursday Night
A chance of rain. Partly cloudy, with a low around 51.
Friday
Rain likely. Cloudy, with a high near 67.
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ABOUT THIS FORECAST

 
Point Forecast:
Mattoon/Charleston, Coles County Memorial Airport IL
 39.51°N 88.27°W (Elev. 656 ft)
Last Update:
5:56 am CST Feb 28, 2026
Forecast Valid:
6am CST Feb 28, 2026-6pm CST Mar 6, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation