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Current conditions at

Mattoon / Charleston, Coles County Memorial Airport (KMTO)

Lat: 39.48°NLon: 88.28°WElev: 722ft.

Fair

63°F

17°C

Humidity 65%
Wind Speed Calm
Barometer 30.08 in (1018.6 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 8 Oct 7:53 pm CDT
Extended Forecast for

3 Miles ESE Sullivan IL

  • Tonight

    Tonight: Clear, with a low around 52. Light and variable wind.

    Low: 52 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 86. Light south southeast wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 16 mph.

    High: 86 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 58. South southeast wind around 7 mph.

    Low: 58 °F

    Clear

  • Saturday

    Saturday: Increasing clouds, with a high near 83. South southeast wind 6 to 9 mph, with gusts as high as 15 mph.

    High: 83 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 58. East southeast wind around 8 mph.

    Low: 58 °F

    Chance
    Showers

  • Sunday

    Sunday: Mostly cloudy, with a high near 76. East wind around 7 mph becoming north northwest in the afternoon.

    High: 76 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 56. Calm wind.

    Low: 56 °F

    Mostly Clear

  • Columbus Day

    Columbus Day: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 52. Light and variable wind.
Friday
Sunny, with a high near 86. Light south southeast wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 16 mph.
Friday Night
Clear, with a low around 58. South southeast wind around 7 mph.
Saturday
Increasing clouds, with a high near 83. South southeast wind 6 to 9 mph, with gusts as high as 15 mph.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 58. East southeast wind around 8 mph.
Sunday
Mostly cloudy, with a high near 76. East wind around 7 mph becoming north northwest in the afternoon.
Sunday Night
Mostly clear, with a low around 56. Calm wind.
Columbus Day
Sunny, with a high near 87.
Monday Night
Mostly clear, with a low around 64.
Tuesday
Sunny, with a high near 83.
Tuesday Night
Partly cloudy, with a low around 54.
Wednesday
Partly sunny, with a high near 77.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 57.
Thursday
A chance of showers. Mostly sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Sullivan IL
 39.56°N 88.56°W (Elev. 627 ft)
Last Update:
7:36 pm CDT Oct 8, 2026
Forecast Valid:
8pm CDT Oct 8, 2026-6pm CDT Oct 15, 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