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

82°F

28°C

Humidity 41%
Wind Speed S 13 G 23 mph
Barometer 30.07 in (1017.9 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 5 Oct 3:53 pm CDT
Extended Forecast for

5 Miles S Sullivan IL

  • Tonight

    Tonight: Mostly clear, with a low around 61. South wind 7 to 10 mph, with gusts as high as 20 mph.

    Low: 61 °F

    Mostly Clear

  • Monday

    Monday: A slight chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 85. South wind 6 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 40%.

    High: 85 °F

    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 65. South wind 3 to 6 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 65 °F

    Chance
    T-storms then
    Showers
    Likely

  • Tuesday

    Tuesday: A chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers after 4pm. Mostly cloudy, with a high near 75. Light and variable wind becoming north 5 to 10 mph in the morning. Winds could gust as high as 16 mph. Chance of precipitation is 50%.

    High: 75 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly cloudy, then gradually becoming clear, with a low around 49. North northeast wind 6 to 8 mph.

    Low: 49 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Sunny, with a high near 71. Northeast wind 6 to 9 mph, with gusts as high as 15 mph.

    High: 71 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 44. East northeast wind around 6 mph.

    Low: 44 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 61. South wind 7 to 10 mph, with gusts as high as 20 mph.
Monday
A slight chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 85. South wind 6 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 40%.
Monday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 65. South wind 3 to 6 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday
A chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers after 4pm. Mostly cloudy, with a high near 75. Light and variable wind becoming north 5 to 10 mph in the morning. Winds could gust as high as 16 mph. Chance of precipitation is 50%.
Tuesday Night
Mostly cloudy, then gradually becoming clear, with a low around 49. North northeast wind 6 to 8 mph.
Wednesday
Sunny, with a high near 71. Northeast wind 6 to 9 mph, with gusts as high as 15 mph.
Wednesday Night
Clear, with a low around 44. East northeast wind around 6 mph.
Thursday
Sunny, with a high near 70.
Thursday Night
Mostly clear, with a low around 44.
Friday
Mostly sunny, with a high near 72.
Friday Night
Mostly clear, with a low around 48.
Saturday
Sunny, with a high near 76.
Saturday Night
Mostly clear, with a low around 48.
Sunday
Sunny, with a high near 78.
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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:
4:16 pm CDT Oct 5, 2025
Forecast Valid:
4pm CDT Oct 5, 2025-6pm CDT Oct 12, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation