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

59°F

15°C

Humidity 33%
Wind Speed S 10 mph
Barometer 30.23 in (1023.7 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 20 Apr 5:53 pm CDT
Extended Forecast for

3 Miles SSW Mattoon IL

  • Tonight

    Tonight: Mostly clear, with a low around 46. South southeast wind 6 to 10 mph, with gusts as high as 18 mph.

    Low: 46 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 75. Southwest wind 10 to 18 mph, with gusts as high as 30 mph.

    High: 75 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 57. Southwest wind 10 to 14 mph, with gusts as high as 23 mph.

    Low: 57 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Mostly sunny, with a high near 75. West southwest wind around 10 mph, with gusts as high as 17 mph.

    High: 75 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 55. South wind 6 to 8 mph.

    Low: 55 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 78. South wind 9 to 17 mph, with gusts as high as 28 mph.

    High: 78 °F

    Sunny

  • Thursday Night

    Thursday Night: A 40 percent chance of showers after 1am. Partly cloudy, with a low around 61. South wind around 15 mph, with gusts as high as 25 mph.

    Low: 61 °F

    Partly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Showers and possibly a thunderstorm. High near 74. Chance of precipitation is 80%.

    High: 74 °F

    Showers

  • Friday Night

    Friday Night: Showers likely, mainly before 1am. Mostly cloudy, with a low around 52. Chance of precipitation is 60%.

    Low: 52 °F

    Showers
    Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 46. South southeast wind 6 to 10 mph, with gusts as high as 18 mph.
Tuesday
Mostly sunny, with a high near 75. Southwest wind 10 to 18 mph, with gusts as high as 30 mph.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 57. Southwest wind 10 to 14 mph, with gusts as high as 23 mph.
Wednesday
Mostly sunny, with a high near 75. West southwest wind around 10 mph, with gusts as high as 17 mph.
Wednesday Night
Mostly clear, with a low around 55. South wind 6 to 8 mph.
Thursday
Sunny, with a high near 78. South wind 9 to 17 mph, with gusts as high as 28 mph.
Thursday Night
A 40 percent chance of showers after 1am. Partly cloudy, with a low around 61. South wind around 15 mph, with gusts as high as 25 mph.
Friday
Showers and possibly a thunderstorm. High near 74. Chance of precipitation is 80%.
Friday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 52. Chance of precipitation is 60%.
Saturday
Mostly sunny, with a high near 71.
Saturday Night
Partly cloudy, with a low around 50.
Sunday
Partly sunny, with a high near 70.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 52.
Monday
A chance of showers. Mostly cloudy, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Mattoon IL
 39.45°N 88.39°W (Elev. 751 ft)
Last Update:
5:16 pm CDT Apr 20, 2026
Forecast Valid:
6pm CDT Apr 20, 2026-6pm CDT Apr 27, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation