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

39°F

4°C

Humidity 53%
Wind Speed SE 5 mph
Barometer 30.06 in (1018.6 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 9 Feb 1:53 pm CST
Extended Forecast for

Charleston IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 43. South southwest wind 3 to 6 mph.

    High: 43 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 32. South wind 7 to 13 mph, with gusts as high as 21 mph.

    Low: 32 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 52. South southwest wind 8 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 21 mph.

    High: 52 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 26. North northwest wind 6 to 8 mph, with gusts as high as 16 mph.

    Low: 26 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 42. Northwest wind 5 to 8 mph, with gusts as high as 15 mph.

    High: 42 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 27. Light and variable wind.

    Low: 27 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Cloudy, with a high near 41. Calm wind becoming east southeast around 5 mph.

    High: 41 °F

    Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 42.

    High: 42 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 43. South southwest wind 3 to 6 mph.
Tonight
Partly cloudy, with a low around 32. South wind 7 to 13 mph, with gusts as high as 21 mph.
Tuesday
Mostly sunny, with a high near 52. South southwest wind 8 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 21 mph.
Tuesday Night
Mostly clear, with a low around 26. North northwest wind 6 to 8 mph, with gusts as high as 16 mph.
Wednesday
Sunny, with a high near 42. Northwest wind 5 to 8 mph, with gusts as high as 15 mph.
Wednesday Night
Increasing clouds, with a low around 27. Light and variable wind.
Thursday
Cloudy, with a high near 41. Calm wind becoming east southeast around 5 mph.
Thursday Night
Mostly cloudy, with a low around 27.
Friday
Mostly sunny, with a high near 42.
Friday Night
Mostly cloudy, with a low around 29.
Saturday
A chance of rain. Cloudy, with a high near 44.
Saturday Night
Rain likely. Cloudy, with a low around 34.
Sunday
Rain likely. Mostly cloudy, with a high near 47.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Charleston IL
 39.5°N 88.19°W (Elev. 650 ft)
Last Update:
12:56 pm CST Feb 9, 2026
Forecast Valid:
2pm CST Feb 9, 2026-6pm CST Feb 15, 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