Current conditions at

Mattoon / Charleston, Coles County Memorial Airport (KMTO)

Lat: 39.48° N Lon: 88.28° W Elev: 722 ft.

Fair

83°F

28°C

Humidity 65%
Wind Speed S 6 mph
Barometer 30.02 in (1015.6 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 1 Sep 10:53 pm CDT
Detailed forecast for

Coles County

Rest Of Tonight
Clear. Near steady temperature in the upper 70s. South winds around 5 mph.
Wednesday
Sunny, hot with highs in the upper 90s. Southwest winds 5 to 10 mph. Heat index values up to 104.
Wednesday Night
Clear. Lows in the upper 70s. Southwest winds 5 to 10 mph.
Thursday
Sunny, hot with highs in the upper 90s. Southwest winds 5 to 10 mph. Heat index values up to 104.
Thursday Night
Mostly clear. Lows in the mid 70s. South winds around 5 mph.
Friday
Sunny, hot with highs in the mid 90s. Heat index values up to 105.
Friday Night Through Saturday Night
Partly cloudy. Lows in the lower 70s. Highs in the mid 90s.
Sunday Through Tuesday
Partly cloudy. Highs in the upper 80s. Lows in the mid 60s.



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1037 PM CDT Tue Sep 1 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database