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.

Fair

64°F

18°C

Humidity 54%
Wind Speed S 10 mph
Barometer 29.99 in (1015.2 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 22 Apr 1:53 am CDT
Extended Forecast for

Mattoon/Charleston, Coles County Memorial Airport IL

  • Overnight

    Overnight: A 20 percent chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 58. West southwest wind 11 to 13 mph, with gusts as high as 21 mph.

    Low: 58 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A 10 percent chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 78. Southwest wind 11 to 14 mph, with gusts as high as 25 mph.

    High: 78 °F

    Slight Chance
    T-storms then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 55. South southwest wind around 8 mph.

    Low: 55 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 79. South wind 9 to 17 mph, with gusts as high as 30 mph.

    High: 79 °F

    Sunny

  • Thursday Night

    Thursday Night: A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 62. South wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.

    Low: 62 °F

    Mostly Clear
    then Chance
    T-storms

  • Friday

    Friday: Showers and possibly a thunderstorm before 7am, then showers between 7am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 74. South wind 14 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 74 °F

    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers before 1am. Partly cloudy, with a low around 54. West southwest wind 7 to 9 mph becoming north northwest after midnight. Winds could gust as high as 15 mph.

    Low: 54 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 58. West southwest wind 11 to 13 mph, with gusts as high as 21 mph.
Wednesday
A 10 percent chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 78. Southwest wind 11 to 14 mph, with gusts as high as 25 mph.
Wednesday Night
Mostly clear, with a low around 55. South southwest wind around 8 mph.
Thursday
Sunny, with a high near 79. South wind 9 to 17 mph, with gusts as high as 30 mph.
Thursday Night
A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 62. South wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.
Friday
Showers and possibly a thunderstorm before 7am, then showers between 7am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 74. South wind 14 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
A 30 percent chance of showers before 1am. Partly cloudy, with a low around 54. West southwest wind 7 to 9 mph becoming north northwest after midnight. Winds could gust as high as 15 mph.
Saturday
Mostly sunny, with a high near 73.
Saturday Night
Partly cloudy, with a low around 50.
Sunday
Partly sunny, with a high near 74.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 58.
Monday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 74. Breezy.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 52.
Tuesday
Mostly sunny, with a high near 68.
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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:
1:51 am CDT Apr 22, 2026
Forecast Valid:
2am CDT Apr 22, 2026-6pm CDT Apr 28, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation