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

68°F

20°C

Humidity 90%
Wind Speed SW 9 mph
Barometer 29.60 in (1001.7 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 18 Jun 3:53 am CDT
Extended Forecast for

4 Miles SW Mattoon IL

  • Today

    Today: Increasing clouds, with a high near 74. West wind 9 to 11 mph, with gusts as high as 20 mph.

    High: 74 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Mostly clear, with a low around 57. Northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 57 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 78. Calm wind becoming northwest 5 to 9 mph in the morning. Winds could gust as high as 15 mph.

    High: 78 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 60. Northwest wind around 5 mph becoming calm in the evening.

    Low: 60 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 81. Southwest wind around 6 mph.

    High: 81 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 62. Southwest wind around 5 mph becoming light and variable.

    Low: 62 °F

    Partly Cloudy

  • Sunday

    Sunday: Showers and possibly a thunderstorm. High near 78. East southeast wind 7 to 11 mph becoming south southwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.

    High: 78 °F

    Showers

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 60. Chance of precipitation is 80%.

    Low: 60 °F

    Showers

  • Monday

    Monday: Partly sunny, with a high near 75.

    High: 75 °F

    Partly Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 74. West wind 9 to 11 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 57. Northwest wind 5 to 7 mph becoming calm in the evening.
Juneteenth
Sunny, with a high near 78. Calm wind becoming northwest 5 to 9 mph in the morning. Winds could gust as high as 15 mph.
Friday Night
Partly cloudy, with a low around 60. Northwest wind around 5 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 81. Southwest wind around 6 mph.
Saturday Night
Partly cloudy, with a low around 62. Southwest wind around 5 mph becoming light and variable.
Sunday
Showers and possibly a thunderstorm. High near 78. East southeast wind 7 to 11 mph becoming south southwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Sunday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 60. Chance of precipitation is 80%.
Monday
Partly sunny, with a high near 75.
Monday Night
Partly cloudy, with a low around 55.
Tuesday
Sunny, with a high near 76.
Tuesday Night
Mostly clear, with a low around 58.
Wednesday
Sunny, with a high near 79.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Mattoon IL
 39.45°N 88.42°W (Elev. 699 ft)
Last Update:
4:36 am CDT Jun 18, 2026
Forecast Valid:
5am CDT Jun 18, 2026-6pm CDT Jun 24, 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