National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Mattoon / Charleston, Coles County Memorial Airport (KMTO)

Lat: 39.48°NLon: 88.28°WElev: 722ft.

Partly Cloudy

75°F

24°C

Humidity 62%
Wind Speed S 17 G 35 mph
Barometer 29.94 in (1013.6 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 6 Mar 2:53 pm CST
Extended Forecast for

Charleston IL

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 77. Breezy, with a south southwest wind 16 to 20 mph, with gusts as high as 32 mph.

    High: 77 °F

    Slight Chance
    T-storms and
    Breezy

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 62. South wind 14 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Partly Cloudy
    then Showers
    Likely

  • Saturday

    Saturday: Showers and thunderstorms, mainly before 1pm. Temperature rising to near 68 by noon, then falling to around 56 during the remainder of the day. Breezy, with a south southwest wind 15 to 20 mph becoming west northwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 68 °F⇓

    Showers then
    Chance
    T-storms and
    Breezy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 36. West northwest wind 5 to 13 mph, with gusts as high as 22 mph.

    Low: 36 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 60. Southwest wind 5 to 11 mph, with gusts as high as 18 mph.

    High: 60 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 43. South southwest wind 8 to 10 mph, with gusts as high as 18 mph.

    Low: 43 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 72. South southwest wind 10 to 17 mph, with gusts as high as 28 mph.

    High: 72 °F

    Sunny

  • Monday Night

    Monday Night: A 30 percent chance of showers after midnight. Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear
    then Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 73. Chance of precipitation is 70%.

    High: 73 °F

    Chance
    Showers then
    Showers
    Likely

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 77. Breezy, with a south southwest wind 16 to 20 mph, with gusts as high as 32 mph.
Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 62. South wind 14 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers and thunderstorms, mainly before 1pm. Temperature rising to near 68 by noon, then falling to around 56 during the remainder of the day. Breezy, with a south southwest wind 15 to 20 mph becoming west northwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Partly cloudy, with a low around 36. West northwest wind 5 to 13 mph, with gusts as high as 22 mph.
Sunday
Sunny, with a high near 60. Southwest wind 5 to 11 mph, with gusts as high as 18 mph.
Sunday Night
Clear, with a low around 43. South southwest wind 8 to 10 mph, with gusts as high as 18 mph.
Monday
Sunny, with a high near 72. South southwest wind 10 to 17 mph, with gusts as high as 28 mph.
Monday Night
A 30 percent chance of showers after midnight. Mostly clear, with a low around 56.
Tuesday
A chance of showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 73. Chance of precipitation is 70%.
Tuesday Night
Showers. Low around 49. Chance of precipitation is 90%.
Wednesday
Showers likely. Cloudy, with a high near 57.
Wednesday Night
Mostly cloudy, with a low around 32.
Thursday
Mostly sunny, with a high near 52.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Charleston IL
 39.5°N 88.19°W (Elev. 650 ft)
Last Update:
2:36 pm CST Mar 6, 2026
Forecast Valid:
3pm CST Mar 6, 2026-6pm CDT Mar 12, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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