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

80°F

27°C

Humidity 49%
Wind Speed S 9 mph
Barometer 30.20 in (1021.9 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 4 Oct 10:53 am CDT
Extended Forecast for

5 Miles S Sullivan IL

  • Today

    Today: Sunny, with a high near 87. South wind 8 to 10 mph.

    High: 87 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 59. South wind 5 to 7 mph.

    Low: 59 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 86. South wind 6 to 11 mph, with gusts as high as 21 mph.

    High: 86 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 63. South wind around 7 mph.

    Low: 63 °F

    Mostly Clear

  • Monday

    Monday: A 40 percent chance of showers. Mostly sunny, with a high near 86. South southwest wind 5 to 7 mph.

    High: 86 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers, with thunderstorms also possible after 1am. Partly cloudy, with a low around 63. South wind 3 to 6 mph. Chance of precipitation is 50%.

    Low: 63 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 76. Light and variable wind becoming north 5 to 8 mph in the morning.

    High: 76 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 87. South wind 8 to 10 mph.
Tonight
Clear, with a low around 59. South wind 5 to 7 mph.
Sunday
Sunny, with a high near 86. South wind 6 to 11 mph, with gusts as high as 21 mph.
Sunday Night
Mostly clear, with a low around 63. South wind around 7 mph.
Monday
A 40 percent chance of showers. Mostly sunny, with a high near 86. South southwest wind 5 to 7 mph.
Monday Night
A chance of showers, with thunderstorms also possible after 1am. Partly cloudy, with a low around 63. South wind 3 to 6 mph. Chance of precipitation is 50%.
Tuesday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 76. Light and variable wind becoming north 5 to 8 mph in the morning.
Tuesday Night
Partly cloudy, with a low around 51.
Wednesday
Sunny, with a high near 70.
Wednesday Night
Mostly clear, with a low around 46.
Thursday
Sunny, with a high near 71.
Thursday Night
Mostly clear, with a low around 46.
Friday
Sunny, with a high near 73.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles S Sullivan IL
 39.52°N 88.59°W (Elev. 617 ft)
Last Update:
9:16 am CDT Oct 4, 2025
Forecast Valid:
11am CDT Oct 4, 2025-6pm CDT Oct 10, 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