Current conditions at

Mattoon / Charleston, Coles County Memorial Airport (KMTO)

Lat: 39.48°NLon: 88.28°WElev: 722ft.

Fair

53°F

12°C

Humidity 47%
Wind Speed SW 10 G 31 mph
Barometer 29.72 in (1006.7 mb)
Dewpoint 33°F (1°C)
Visibility NA
Wind Chill50°F (10°C)
Last update 13 Jan 12:53 pm CST
Extended Forecast for

Sullivan IL

  • This Afternoon

    This Afternoon: Cloudy, with a high near 53. West southwest wind 11 to 15 mph, with gusts as high as 28 mph.

    High: 53 °F

    Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 34. West southwest wind 9 to 15 mph becoming northwest after midnight. Winds could gust as high as 24 mph.

    Low: 34 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of sprinkles and flurries before 8am, then a chance of flurries between 8am and 3pm.  Partly sunny, with a temperature falling to around 25 by 5pm. Breezy, with a north northwest wind 17 to 22 mph, with gusts as high as 36 mph.

    High: 35 °F

    Breezy.
    Chance
    Sprinkles/Flurries
    then Chance
    Flurries

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 15. Wind chill values between 3 and 11. North northwest wind 9 to 16 mph, with gusts as high as 25 mph.

    Low: 15 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 27. North northwest wind 6 to 9 mph becoming south southwest in the afternoon. Winds could gust as high as 16 mph.

    High: 27 °F

    Sunny

  • Thursday Night

    Thursday Night: A 50 percent chance of snow.  Increasing clouds, with a low around 21. South southwest wind 6 to 15 mph, with gusts as high as 24 mph.

    Low: 21 °F

    Chance Snow

  • Friday

    Friday: Mostly cloudy, with a high near 38. West wind 13 to 18 mph, with gusts as high as 29 mph.

    High: 38 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 14.

    Low: 14 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 20.

    High: 20 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Cloudy, with a high near 53. West southwest wind 11 to 15 mph, with gusts as high as 28 mph.
Tonight
Mostly cloudy, with a low around 34. West southwest wind 9 to 15 mph becoming northwest after midnight. Winds could gust as high as 24 mph.
Wednesday
A chance of sprinkles and flurries before 8am, then a chance of flurries between 8am and 3pm. Partly sunny, with a temperature falling to around 25 by 5pm. Breezy, with a north northwest wind 17 to 22 mph, with gusts as high as 36 mph.
Wednesday Night
Mostly clear, with a low around 15. Wind chill values between 3 and 11. North northwest wind 9 to 16 mph, with gusts as high as 25 mph.
Thursday
Sunny, with a high near 27. North northwest wind 6 to 9 mph becoming south southwest in the afternoon. Winds could gust as high as 16 mph.
Thursday Night
A 50 percent chance of snow. Increasing clouds, with a low around 21. South southwest wind 6 to 15 mph, with gusts as high as 24 mph.
Friday
Mostly cloudy, with a high near 38. West wind 13 to 18 mph, with gusts as high as 29 mph.
Friday Night
Mostly cloudy, with a low around 14.
Saturday
Mostly cloudy, with a high near 20.
Saturday Night
Partly cloudy, with a low around 5.
Sunday
Mostly sunny, with a high near 21.
Sunday Night
Partly cloudy, with a low around 9.
M.L.King Day
Mostly sunny, with a high near 25.
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ABOUT THIS FORECAST

 
Point Forecast:
Sullivan IL
 39.59°N 88.61°W (Elev. 669 ft)
1:46 pm CST Jan 13, 2026
1pm CST Jan 13, 2026-6pm CST Jan 19, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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