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

48°F

9°C

Humidity 41%
Wind Speed SE 9 mph
Barometer 30.34 in (1028.0 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 7 Apr 5:53 pm CDT
Extended Forecast for

Charleston IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 37. East wind 6 to 9 mph, with gusts as high as 20 mph.

    Low: 37 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 67. Southeast wind 9 to 16 mph, with gusts as high as 28 mph.

    High: 67 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 52. South wind 11 to 14 mph, with gusts as high as 24 mph.

    Low: 52 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 73. Southwest wind 13 to 15 mph, with gusts as high as 25 mph.

    High: 73 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 54. South southwest wind 8 to 11 mph, with gusts as high as 20 mph.

    Low: 54 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 68. South southwest wind 9 to 11 mph becoming west northwest in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 50%.

    High: 68 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 45. North northeast wind around 7 mph.

    Low: 45 °F

    Chance
    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 69.

    High: 69 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 55.

    Low: 55 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 37. East wind 6 to 9 mph, with gusts as high as 20 mph.
Wednesday
Mostly sunny, with a high near 67. Southeast wind 9 to 16 mph, with gusts as high as 28 mph.
Wednesday Night
Partly cloudy, with a low around 52. South wind 11 to 14 mph, with gusts as high as 24 mph.
Thursday
Mostly sunny, with a high near 73. Southwest wind 13 to 15 mph, with gusts as high as 25 mph.
Thursday Night
Mostly cloudy, with a low around 54. South southwest wind 8 to 11 mph, with gusts as high as 20 mph.
Friday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 68. South southwest wind 9 to 11 mph becoming west northwest in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 50%.
Friday Night
A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 45. North northeast wind around 7 mph.
Saturday
Partly sunny, with a high near 69.
Saturday Night
Mostly cloudy, with a low around 55.
Sunday
Partly sunny, with a high near 79.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 64.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 79. Breezy.
Monday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 63.
Tuesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 77.
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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:
6:36 pm CDT Apr 7, 2026
Forecast Valid:
6pm CDT Apr 7, 2026-6pm CDT Apr 14, 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