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

31°F

-1°C

Humidity 82%
Wind Speed NE 3 mph
Barometer 30.65 in (1038.5 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 28 Mar 7:53 am CDT
Extended Forecast for

Mattoon/Charleston, Coles County Memorial Airport IL

  • Today

    Today: Sunny, with a high near 51. Northeast wind 6 to 8 mph becoming south in the afternoon.

    High: 51 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 37. South southeast wind 7 to 9 mph, with gusts as high as 20 mph.

    Low: 37 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Partly sunny, with a high near 63. South southwest wind 10 to 16 mph, with gusts as high as 28 mph.

    High: 63 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 53. South wind 10 to 13 mph, with gusts as high as 21 mph.

    Low: 53 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 75. South southwest wind 13 to 18 mph, with gusts as high as 29 mph.

    High: 75 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 62. Breezy, with a south wind 16 to 20 mph, with gusts as high as 30 mph.

    Low: 62 °F

    Partly Cloudy
    then Partly
    Cloudy and
    Breezy

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 78. Breezy, with a south southwest wind 20 to 23 mph, with gusts as high as 41 mph.

    High: 78 °F

    Breezy.
    Partly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Rain likely and possibly a thunderstorm, then rain after 1am. Low around 45. Chance of precipitation is 90%.

    Low: 45 °F

    Rain

  • Wednesday

    Wednesday: A 50 percent chance of rain. Mostly cloudy, with a high near 55.

    High: 55 °F

    Chance Rain

Detailed Forecast

Today
Sunny, with a high near 51. Northeast wind 6 to 8 mph becoming south in the afternoon.
Tonight
Increasing clouds, with a low around 37. South southeast wind 7 to 9 mph, with gusts as high as 20 mph.
Sunday
Partly sunny, with a high near 63. South southwest wind 10 to 16 mph, with gusts as high as 28 mph.
Sunday Night
Mostly cloudy, with a low around 53. South wind 10 to 13 mph, with gusts as high as 21 mph.
Monday
Mostly sunny, with a high near 75. South southwest wind 13 to 18 mph, with gusts as high as 29 mph.
Monday Night
Partly cloudy, with a low around 62. Breezy, with a south wind 16 to 20 mph, with gusts as high as 30 mph.
Tuesday
A 50 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 78. Breezy, with a south southwest wind 20 to 23 mph, with gusts as high as 41 mph.
Tuesday Night
Rain likely and possibly a thunderstorm, then rain after 1am. Low around 45. Chance of precipitation is 90%.
Wednesday
A 50 percent chance of rain. Mostly cloudy, with a high near 55.
Wednesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 37.
Thursday
A chance of rain. Mostly cloudy, with a high near 53.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 42.
Friday
A chance of rain. Mostly cloudy, with a high near 64.
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ABOUT THIS FORECAST

 
Point Forecast:
Mattoon/Charleston, Coles County Memorial Airport IL
 39.46°N 88.28°W (Elev. 679 ft)
Last Update:
7:46 am CDT Mar 28, 2026
Forecast Valid:
8am CDT Mar 28, 2026-6pm CDT Apr 3, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation