Current conditions at

Mattoon / Charleston, Coles County Memorial Airport (KMTO)

Lat: 39.48°NLon: 88.28°WElev: 722ft.

Mostly Cloudy and Breezy

66°F

19°C

Humidity 59%
Wind Speed S 22 G 51 mph
Barometer 29.48 in (998.0 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 15 Mar 12:53 pm CDT
Extended Forecast for

Sullivan IL

Wind Advisory March 15, 01:24pm until March 16, 10:00am
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory March 15, 01:24pm until March 16, 10:00am

    NOW until 10:00am Mon

    Wind Advisory

  • This Afternoon

    High: 66 °F

    Heavy Rain
    and Windy

  • Tonight

    Tonight: Rain before midnight, then a slight chance of rain and snow between midnight and 2am, then a chance of snow after 2am. The rain could be heavy at times. Some thunder is also possible.  Low around 21. Breezy, with a west wind 25 to 28 mph, with gusts as high as 44 mph.  Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 21 °F

    Breezy. Heavy
    Rain then
    Chance
    Rain/Snow

  • Monday

    Monday: A 30 percent chance of snow, mainly before 1pm.  Cloudy, with a high near 27. Blustery, with a west northwest wind 23 to 29 mph, with gusts as high as 44 mph.

    High: 27 °F

    Chance Snow
    and Blustery

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 11. Wind chill values between -4 and 6. Blustery, with a west northwest wind 15 to 21 mph, with gusts as high as 32 mph.

    Low: 11 °F

    Mostly Cloudy
    and Blustery
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 26. West northwest wind 7 to 13 mph, with gusts as high as 20 mph.

    High: 26 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 50 percent chance of snow after 1am.  Mostly cloudy, with a low around 22. Light south wind increasing to 9 to 14 mph in the evening. Winds could gust as high as 23 mph.

    Low: 22 °F

    Mostly Cloudy
    then Chance
    Snow

  • Wednesday

    Wednesday: Partly sunny, with a high near 51. South wind 11 to 15 mph, with gusts as high as 24 mph.

    High: 51 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
A chance of rain and thunderstorms, then rain and possibly a thunderstorm after 4pm. Some of the storms could produce heavy rainfall. High near 66. Windy, with a south wind 28 to 32 mph, with gusts as high as 55 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Rain before midnight, then a slight chance of rain and snow between midnight and 2am, then a chance of snow after 2am. The rain could be heavy at times. Some thunder is also possible. Low around 21. Breezy, with a west wind 25 to 28 mph, with gusts as high as 44 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Monday
A 30 percent chance of snow, mainly before 1pm. Cloudy, with a high near 27. Blustery, with a west northwest wind 23 to 29 mph, with gusts as high as 44 mph.
Monday Night
Mostly cloudy, with a low around 11. Wind chill values between -4 and 6. Blustery, with a west northwest wind 15 to 21 mph, with gusts as high as 32 mph.
Tuesday
Mostly sunny, with a high near 26. West northwest wind 7 to 13 mph, with gusts as high as 20 mph.
Tuesday Night
A 50 percent chance of snow after 1am. Mostly cloudy, with a low around 22. Light south wind increasing to 9 to 14 mph in the evening. Winds could gust as high as 23 mph.
Wednesday
Partly sunny, with a high near 51. South wind 11 to 15 mph, with gusts as high as 24 mph.
Wednesday Night
Partly cloudy, with a low around 36.
Thursday
Mostly sunny, with a high near 63.
Thursday Night
Partly cloudy, with a low around 39.
Friday
Mostly sunny, with a high near 68.
Friday Night
Mostly cloudy, with a low around 46.
Saturday
Sunny, with a high near 69.
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ABOUT THIS FORECAST

 
Point Forecast:
Sullivan IL
 39.59°N 88.61°W (Elev. 669 ft)
1:16 pm CDT Mar 15, 2026
1pm CDT Mar 15, 2026-6pm CDT Mar 21, 2026
 
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Additional Resources

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