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.

Partly Cloudy

77°F

25°C

Humidity 77%
Wind Speed NW 12 mph
Barometer 30.04 in (1016.6 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 17 Aug 10:53 am CDT
Extended Forecast for

4 Miles SW Mattoon IL

  • Today

    Today: Sunny, with a high near 81. North northwest wind 9 to 11 mph, with gusts as high as 17 mph.

    High: 81 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 60. North northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 60 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 83. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 83 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers after 1am. Increasing clouds, with a low around 66. Light south wind.

    Low: 66 °F

    Mostly Clear
    then Chance
    Showers

  • Wednesday

    Wednesday: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 82. West southwest wind around 5 mph becoming north northwest in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 82 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 64. Northeast wind 3 to 5 mph.

    Low: 64 °F

    Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 79. Northeast wind around 7 mph.

    High: 79 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 81. North northwest wind 9 to 11 mph, with gusts as high as 17 mph.
Tonight
Partly cloudy, with a low around 60. North northwest wind 5 to 7 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 83. Calm wind becoming west southwest around 6 mph in the afternoon.
Tuesday Night
A 50 percent chance of showers after 1am. Increasing clouds, with a low around 66. Light south wind.
Wednesday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 82. West southwest wind around 5 mph becoming north northwest in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 64. Northeast wind 3 to 5 mph.
Thursday
Mostly sunny, with a high near 79. Northeast wind around 7 mph.
Thursday Night
Partly cloudy, with a low around 61.
Friday
Sunny, with a high near 81.
Friday Night
Mostly clear, with a low around 61.
Saturday
Sunny, with a high near 82.
Saturday Night
Mostly clear, with a low around 61.
Sunday
Sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Mattoon IL
 39.45°N 88.42°W (Elev. 699 ft)
Last Update:
10:36 am CDT Aug 17, 2026
Forecast Valid:
11am CDT Aug 17, 2026-6pm CDT Aug 23, 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