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.

Overcast

40°F

4°C

Humidity 86%
Wind Speed NW 9 mph
Barometer 30.02 in (1016.7 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 8 Mar 1:53 am CDT
Extended Forecast for

Mattoon/Charleston, Coles County Memorial Airport IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 36. West northwest wind around 6 mph.

    Low: 36 °F

    Mostly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 61. Southwest wind 6 to 14 mph, with gusts as high as 22 mph.

    High: 61 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 42. South southwest wind around 10 mph, with gusts as high as 21 mph.

    Low: 42 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 71. Breezy, with a south southwest wind 10 to 20 mph, with gusts as high as 32 mph.

    High: 71 °F

    Sunny then
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 58. South southwest wind 10 to 14 mph, with gusts as high as 25 mph.

    Low: 58 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 76. Breezy, with a south southwest wind 10 to 20 mph, with gusts as high as 31 mph.

    High: 76 °F

    Mostly Cloudy
    then Chance
    T-storms and
    Breezy

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 55. Breezy, with a south southwest wind 16 to 22 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    Low: 55 °F

    T-storms then
    Showers and
    Breezy

  • Wednesday

    Wednesday: Showers. High near 66. Breezy. Chance of precipitation is 100%.

    High: 66 °F

    Breezy.
    Showers then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of rain and snow before midnight. Partly cloudy, with a low around 28. Blustery. Chance of precipitation is 30%.

    Low: 28 °F

    Chance
    Rain/Snow and
    Blustery then
    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 36. West northwest wind around 6 mph.
Sunday
Sunny, with a high near 61. Southwest wind 6 to 14 mph, with gusts as high as 22 mph.
Sunday Night
Clear, with a low around 42. South southwest wind around 10 mph, with gusts as high as 21 mph.
Monday
Sunny, with a high near 71. Breezy, with a south southwest wind 10 to 20 mph, with gusts as high as 32 mph.
Monday Night
Mostly clear, with a low around 58. South southwest wind 10 to 14 mph, with gusts as high as 25 mph.
Tuesday
A 50 percent chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 76. Breezy, with a south southwest wind 10 to 20 mph, with gusts as high as 31 mph.
Tuesday Night
Showers and possibly a thunderstorm. Low around 55. Breezy, with a south southwest wind 16 to 22 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Wednesday
Showers. High near 66. Breezy. Chance of precipitation is 100%.
Wednesday Night
A chance of rain and snow before midnight. Partly cloudy, with a low around 28. Blustery. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 47.
Thursday Night
Mostly cloudy, with a low around 38. Breezy.
Friday
Partly sunny, with a high near 60. Breezy.
Friday Night
Mostly cloudy, with a low around 33.
Saturday
Mostly cloudy, with a high near 50.
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Forecast Area
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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:
1:51 am CST Mar 8, 2026
Forecast Valid:
1am CST Mar 8, 2026-6pm CDT Mar 14, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation