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.

A Few Clouds

79°F

26°C

Humidity 65%
Wind Speed W 12 mph
Barometer 29.99 in (1014.9 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 19 Jun 12:53 pm CDT
Extended Forecast for

4 Miles SE Sullivan IL

  • Juneteenth

    Juneteenth: Sunny, with a high near 83. West northwest wind around 9 mph, with gusts as high as 15 mph.

    High: 83 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 64. West northwest wind around 6 mph becoming light and variable.

    Low: 64 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 85. South southwest wind 5 to 11 mph, with gusts as high as 18 mph.

    High: 85 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 72. South wind around 10 mph, with gusts as high as 18 mph.

    Low: 72 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 92. South southwest wind 10 to 14 mph, with gusts as high as 23 mph.

    High: 92 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 74. South wind 8 to 10 mph, with gusts as high as 20 mph.

    Low: 74 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 93. South southwest wind 7 to 10 mph, with gusts as high as 18 mph.

    High: 93 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 75.

    Low: 75 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

Detailed Forecast

Juneteenth
Sunny, with a high near 83. West northwest wind around 9 mph, with gusts as high as 15 mph.
Tonight
Mostly clear, with a low around 64. West northwest wind around 6 mph becoming light and variable.
Friday
Sunny, with a high near 85. South southwest wind 5 to 11 mph, with gusts as high as 18 mph.
Friday Night
Mostly clear, with a low around 72. South wind around 10 mph, with gusts as high as 18 mph.
Saturday
Sunny, with a high near 92. South southwest wind 10 to 14 mph, with gusts as high as 23 mph.
Saturday Night
Clear, with a low around 74. South wind 8 to 10 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 93. South southwest wind 7 to 10 mph, with gusts as high as 18 mph.
Sunday Night
Clear, with a low around 75.
Monday
Sunny, with a high near 94.
Monday Night
Mostly clear, with a low around 75.
Tuesday
Mostly sunny, with a high near 92.
Tuesday Night
Partly cloudy, with a low around 73.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SE Sullivan IL
 39.54°N 88.56°W (Elev. 679 ft)
Last Update:
12:41 pm CDT Jun 19, 2025
Forecast Valid:
1pm CDT Jun 19, 2025-6pm CDT Jun 25, 2025
 
Forecast Discussion
 
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Additional Resources

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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