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.

Mostly Cloudy

65°F

18°C

Humidity 78%
Wind Speed SW 16 G 32 mph
Barometer 29.87 in (1011.1 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 7 Mar 1:53 pm CST
Extended Forecast for

4 Miles SE Sullivan IL

  • This Afternoon

    This Afternoon: A 20 percent chance of showers before 3pm. Cloudy, with a high near 63. Breezy, with a west northwest wind 15 to 20 mph, with gusts as high as 31 mph.

    High: 63 °F

    Slight Chance
    Showers and
    Breezy

  • Tonight

    Tonight: Mostly cloudy, with a low around 36. West northwest wind 5 to 13 mph, with gusts as high as 22 mph.

    Low: 36 °F

    Mostly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 61. Southwest wind 6 to 14 mph, with gusts as high as 21 mph.

    High: 61 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 43. South southwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 43 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 72. South southwest wind 10 to 16 mph, with gusts as high as 25 mph.

    High: 72 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 57. South southwest wind 10 to 13 mph, with gusts as high as 22 mph.

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 76. South southwest wind 10 to 18 mph, with gusts as high as 30 mph.

    High: 76 °F

    Partly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 55. Breezy. Chance of precipitation is 90%.

    Low: 55 °F

    Showers and
    Breezy

  • Wednesday

    Wednesday: Showers. High near 65. Breezy. Chance of precipitation is 100%.

    High: 65 °F

    Showers and
    Breezy

Detailed Forecast

This Afternoon
A 20 percent chance of showers before 3pm. Cloudy, with a high near 63. Breezy, with a west northwest wind 15 to 20 mph, with gusts as high as 31 mph.
Tonight
Mostly cloudy, with a low around 36. West northwest wind 5 to 13 mph, with gusts as high as 22 mph.
Sunday
Sunny, with a high near 61. Southwest wind 6 to 14 mph, with gusts as high as 21 mph.
Sunday Night
Clear, with a low around 43. South southwest wind around 10 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 72. South southwest wind 10 to 16 mph, with gusts as high as 25 mph.
Monday Night
Mostly clear, with a low around 57. South southwest wind 10 to 13 mph, with gusts as high as 22 mph.
Tuesday
A 50 percent chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 76. South southwest wind 10 to 18 mph, with gusts as high as 30 mph.
Tuesday Night
Showers and possibly a thunderstorm. Low around 55. Breezy. Chance of precipitation is 90%.
Wednesday
Showers. High near 65. Breezy. Chance of precipitation is 100%.
Wednesday Night
A 30 percent chance of rain before midnight. Partly cloudy, with a low around 30.
Thursday
Sunny, with a high near 47.
Thursday Night
Mostly cloudy, with a low around 38.
Friday
Mostly cloudy, with a high near 61. Breezy.
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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:
1:11 pm CST Mar 7, 2026
Forecast Valid:
2pm CST Mar 7, 2026-6pm CDT Mar 13, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation