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.

Fair

62°F

17°C

Humidity 80%
Wind Speed Calm
Barometer 30.07 in (1017.9 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 24 May 9:53 pm CDT
Extended Forecast for

3 Miles WSW Charleston IL

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, mostly clear, with a low around 55. Light east northeast wind.

    Low: 55 °F

    Clear then
    Patchy Fog

  • Memorial Day

    Memorial Day: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 78. East wind 3 to 7 mph.

    High: 78 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 57. Light east wind.

    Low: 57 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 79. East southeast wind 3 to 6 mph.

    High: 79 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 63. East southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%.

    Low: 63 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 80. East southeast wind 3 to 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 63. Calm wind.

    Low: 63 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 63.

    Low: 63 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Patchy fog after 3am. Otherwise, mostly clear, with a low around 55. Light east northeast wind.
Memorial Day
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 78. East wind 3 to 7 mph.
Monday Night
Partly cloudy, with a low around 57. Light east wind.
Tuesday
Partly sunny, with a high near 79. East southeast wind 3 to 6 mph.
Tuesday Night
A chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 63. East southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%.
Wednesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 80. East southeast wind 3 to 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Partly cloudy, with a low around 63. Calm wind.
Thursday
Mostly sunny, with a high near 82.
Thursday Night
Mostly cloudy, with a low around 63.
Friday
A 30 percent chance of showers after 1pm. Partly sunny, with a high near 78.
Friday Night
A chance of showers. Mostly cloudy, with a low around 61.
Saturday
A chance of showers. Partly sunny, with a high near 74.
Saturday Night
Partly cloudy, with a low around 58.
Sunday
Mostly sunny, with a high near 74.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Charleston IL
 39.46°N 88.22°W (Elev. 650 ft)
Last Update:
7:51 pm CDT May 24, 2026
Forecast Valid:
10pm CDT May 24, 2026-6pm CDT May 31, 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