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

62°F

17°C

Humidity 90%
Wind Speed S 10 mph
Barometer 29.85 in (1010.5 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 10 Mar 12:53 am CDT
Extended Forecast for

Mattoon/Charleston, Coles County Memorial Airport IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 60. South southwest wind around 15 mph, with gusts as high as 25 mph.

    Low: 60 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 75. South southwest wind 11 to 18 mph, with gusts as high as 26 mph.

    High: 75 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4am. Low around 59. South southwest wind around 18 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    Chance
    T-storms then
    T-storms

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm before 1pm, then showers likely. Temperature falling to around 48 by 5pm. Breezy, with a southwest wind 18 to 21 mph becoming northwest in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 67 °F⇓

    Breezy.
    T-storms then
    Showers

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 31. Blustery, with a north northwest wind 10 to 20 mph, with gusts as high as 32 mph.

    Low: 31 °F

    Chance
    Showers and
    Blustery then
    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 50. Northwest wind 7 to 10 mph becoming west southwest in the afternoon. Winds could gust as high as 17 mph.

    High: 50 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 40. Breezy, with a south wind 10 to 15 mph increasing to 18 to 23 mph after midnight. Winds could gust as high as 39 mph.

    Low: 40 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Friday

    Friday: Mostly cloudy, with a high near 58. Breezy.

    High: 58 °F

    Mostly Cloudy
    and Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 60. South southwest wind around 15 mph, with gusts as high as 25 mph.
Tuesday
Partly sunny, with a high near 75. South southwest wind 11 to 18 mph, with gusts as high as 26 mph.
Tuesday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4am. Low around 59. South southwest wind around 18 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers and possibly a thunderstorm before 1pm, then showers likely. Temperature falling to around 48 by 5pm. Breezy, with a southwest wind 18 to 21 mph becoming northwest in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday Night
A 30 percent chance of showers before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 31. Blustery, with a north northwest wind 10 to 20 mph, with gusts as high as 32 mph.
Thursday
Sunny, with a high near 50. Northwest wind 7 to 10 mph becoming west southwest in the afternoon. Winds could gust as high as 17 mph.
Thursday Night
Mostly cloudy, with a low around 40. Breezy, with a south wind 10 to 15 mph increasing to 18 to 23 mph after midnight. Winds could gust as high as 39 mph.
Friday
Mostly cloudy, with a high near 58. Breezy.
Friday Night
Mostly cloudy, with a low around 35.
Saturday
Partly sunny, with a high near 59.
Saturday Night
Mostly cloudy, with a low around 47.
Sunday
Rain. Cloudy, with a high near 60. Breezy.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 24. Blustery.
Monday
Partly sunny, with a high near 34.
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ABOUT THIS FORECAST

 
Point Forecast:
Mattoon/Charleston, Coles County Memorial Airport IL
 39.49°N 88.27°W (Elev. 696 ft)
Last Update:
1:26 am CDT Mar 10, 2026
Forecast Valid:
1am CDT Mar 10, 2026-6pm CDT Mar 16, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation