Current conditions at

Mattoon / Charleston, Coles County Memorial Airport (KMTO)

Lat: 39.48°NLon: 88.28°WElev: 722ft.

Fair

30°F

-1°C

Humidity 66%
Wind Speed E 8 mph
Barometer 30.36 in (1028.5 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 24 Mar 5:53 am CDT
Extended Forecast for

Sullivan IL

  • Today

    Today: Mostly sunny, with a high near 59. South southeast wind 6 to 9 mph.

    High: 59 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 40. South southeast wind around 7 mph, with gusts as high as 15 mph.

    Low: 40 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 71. South southwest wind 6 to 11 mph, with gusts as high as 20 mph.

    High: 71 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 57. South wind 9 to 13 mph, with gusts as high as 20 mph.

    Low: 57 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 84. Southwest wind 13 to 18 mph, with gusts as high as 29 mph.

    High: 84 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Showers and thunderstorms before 10pm, then showers and possibly a thunderstorm between 10pm and 1am, then rain and possibly a thunderstorm after 1am.  Low around 38. West southwest wind 13 to 18 mph becoming north northeast after midnight. Winds could gust as high as 29 mph.  Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 38 °F

    T-storms

  • Friday

    Friday: Partly sunny, with a high near 47. North wind 15 to 18 mph, with gusts as high as 28 mph.

    High: 47 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 52.

    High: 52 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 59. South southeast wind 6 to 9 mph.
Tonight
Mostly cloudy, with a low around 40. South southeast wind around 7 mph, with gusts as high as 15 mph.
Wednesday
Partly sunny, with a high near 71. South southwest wind 6 to 11 mph, with gusts as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 57. South wind 9 to 13 mph, with gusts as high as 20 mph.
Thursday
Mostly sunny, with a high near 84. Southwest wind 13 to 18 mph, with gusts as high as 29 mph.
Thursday Night
Showers and thunderstorms before 10pm, then showers and possibly a thunderstorm between 10pm and 1am, then rain and possibly a thunderstorm after 1am. Low around 38. West southwest wind 13 to 18 mph becoming north northeast after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Friday
Partly sunny, with a high near 47. North wind 15 to 18 mph, with gusts as high as 28 mph.
Friday Night
Mostly clear, with a low around 27.
Saturday
Sunny, with a high near 52.
Saturday Night
Partly cloudy, with a low around 35.
Sunday
Partly sunny, with a high near 60.
Sunday Night
Mostly cloudy, with a low around 44.
Monday
Mostly sunny, with a high near 72.
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ABOUT THIS FORECAST

 
Point Forecast:
Sullivan IL
 39.59°N 88.61°W (Elev. 669 ft)
6:26 am CDT Mar 24, 2026
6am CDT Mar 24, 2026-6pm CDT Mar 30, 2026
 
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Additional Resources

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