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

76°F

24°C

Humidity 85%
Wind Speed SW 5 mph
Barometer 30.07 in (1017.5 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 8 Aug 7:53 am CDT
Extended Forecast for

Mattoon/Charleston, Coles County Memorial Airport IL

  • Today

    Today: Sunny, with a high near 86. West wind around 8 mph.

    High: 86 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 68. Light and variable wind.

    Low: 68 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 88. South wind 5 to 13 mph, with gusts as high as 21 mph.

    High: 88 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 72. South southwest wind around 10 mph, with gusts as high as 17 mph.

    Low: 72 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 90. Southwest wind 8 to 11 mph, with gusts as high as 20 mph.

    High: 90 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 74. South southwest wind 8 to 11 mph, with gusts as high as 18 mph.

    Low: 74 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 89. Southwest wind around 10 mph, with gusts as high as 17 mph.

    High: 89 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely after 1am. Partly cloudy, with a low around 72. Chance of precipitation is 60%.

    Low: 72 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: A 50 percent chance of showers. Mostly sunny, with a high near 86.

    High: 86 °F

    Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 86. West wind around 8 mph.
Tonight
Mostly clear, with a low around 68. Light and variable wind.
Sunday
Mostly sunny, with a high near 88. South wind 5 to 13 mph, with gusts as high as 21 mph.
Sunday Night
Mostly clear, with a low around 72. South southwest wind around 10 mph, with gusts as high as 17 mph.
Monday
Mostly sunny, with a high near 90. Southwest wind 8 to 11 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 74. South southwest wind 8 to 11 mph, with gusts as high as 18 mph.
Tuesday
Mostly sunny, with a high near 89. Southwest wind around 10 mph, with gusts as high as 17 mph.
Tuesday Night
A chance of showers and thunderstorms, then showers likely after 1am. Partly cloudy, with a low around 72. Chance of precipitation is 60%.
Wednesday
A 50 percent chance of showers. Mostly sunny, with a high near 86.
Wednesday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 68. Chance of precipitation is 60%.
Thursday
A chance of showers. Partly sunny, with a high near 81.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 64.
Friday
A chance of showers. Partly sunny, with a high near 79.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mattoon/Charleston, Coles County Memorial Airport IL
 39.49°N 88.3°W (Elev. 709 ft)
Last Update:
1:41 am CDT Aug 8, 2026
Forecast Valid:
8am CDT Aug 8, 2026-6pm CDT Aug 14, 2026
 
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Additional Resources

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Chance of Precipitation