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

35°F

2°C

Humidity 78%
Wind Speed N 12 mph
Barometer 30.09 in (1019.1 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 10 Feb 10:53 pm CST
Extended Forecast for

Charleston IL

  • Tonight

    Tonight: Mostly clear, with a low around 26. North northwest wind around 10 mph, with gusts as high as 17 mph.

    Low: 26 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 43. North northwest wind 6 to 10 mph, with gusts as high as 16 mph.

    High: 43 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 26. West northwest wind around 5 mph becoming calm in the evening.

    Low: 26 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Cloudy, with a high near 43. Light and variable wind.

    High: 43 °F

    Cloudy

  • Thursday Night

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

    Low: 27 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 46. Calm wind becoming south southeast around 6 mph.

    High: 46 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 30. Calm wind becoming southeast around 5 mph after midnight.

    Low: 30 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 49.

    High: 49 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 37.

    Low: 37 °F

    Chance Rain

Detailed Forecast

Tonight
Mostly clear, with a low around 26. North northwest wind around 10 mph, with gusts as high as 17 mph.
Wednesday
Sunny, with a high near 43. North northwest wind 6 to 10 mph, with gusts as high as 16 mph.
Wednesday Night
Increasing clouds, with a low around 26. West northwest wind around 5 mph becoming calm in the evening.
Thursday
Cloudy, with a high near 43. Light and variable wind.
Thursday Night
Mostly cloudy, with a low around 27. Calm wind.
Friday
Mostly sunny, with a high near 46. Calm wind becoming south southeast around 6 mph.
Friday Night
Partly cloudy, with a low around 30. Calm wind becoming southeast around 5 mph after midnight.
Saturday
Mostly cloudy, with a high near 49.
Saturday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 37.
Sunday
A 40 percent chance of rain before noon. Partly sunny, with a high near 52.
Sunday Night
Mostly clear, with a low around 32.
Washington's Birthday
Mostly sunny, with a high near 55.
Monday Night
Mostly cloudy, with a low around 38.
Tuesday
Mostly cloudy, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Charleston IL
 39.5°N 88.19°W (Elev. 650 ft)
Last Update:
9:36 pm CST Feb 10, 2026
Forecast Valid:
11pm CST Feb 10, 2026-6pm CST Feb 17, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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