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

60°F

16°C

Humidity 65%
Wind Speed SW 7 mph
Barometer 30.01 in (1015.9 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 22 Apr 4:53 am CDT
Extended Forecast for

Mattoon IL

  • Overnight

    Overnight: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59. West southwest wind around 11 mph, with gusts as high as 20 mph.

    Low: 59 °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 56. South southwest wind 6 to 8 mph.

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 78. South wind 8 to 17 mph, with gusts as high as 28 mph.

    High: 78 °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 southwest wind 13 to 15 mph, with gusts as high as 25 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 after midnight.

    Low: 54 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59. West southwest wind around 11 mph, with gusts as high as 20 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 56. South southwest wind 6 to 8 mph.
Thursday
Sunny, with a high near 78. South wind 8 to 17 mph, with gusts as high as 28 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 southwest wind 13 to 15 mph, with gusts as high as 25 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 after midnight.
Saturday
Mostly sunny, with a high near 72.
Saturday Night
Partly cloudy, with a low around 49.
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. Mostly cloudy, with a low around 51.
Tuesday
Mostly sunny, with a high near 67.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mattoon IL
 39.49°N 88.39°W (Elev. 732 ft)
Last Update:
5:26 am CDT Apr 22, 2026
Forecast Valid:
5am CDT Apr 22, 2026-6pm CDT Apr 28, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation