Hazardous Weather Conditions

Current conditions at

Mattoon / Charleston, Coles County Memorial Airport (KMTO)

Lat: 39.48°NLon: 88.28°WElev: 722ft.

Overcast

63°F

17°C

Humidity 97%
Wind Speed S 8 mph
Barometer 29.91 in (1012.5 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 4 Apr 7:53 am CDT
Extended Forecast for

Sullivan IL

  • Today

    Today: Showers and possibly a thunderstorm before 2pm, then a slight chance of showers between 2pm and 4pm.  Temperature falling to around 54 by 2pm. West wind 14 to 16 mph, with gusts as high as 29 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 65 °F

    Showers then
    Chance
    Showers

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 36. West northwest wind 10 to 15 mph, with gusts as high as 28 mph.

    Low: 36 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Mostly sunny, with a high near 52. West northwest wind 10 to 14 mph, with gusts as high as 22 mph.

    High: 52 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 37. West wind 6 to 8 mph.

    Low: 37 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 55. Northwest wind 9 to 14 mph, with gusts as high as 22 mph.

    High: 55 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 29. Northwest wind around 10 mph becoming north northeast after midnight. Winds could gust as high as 17 mph.

    Low: 29 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 49. East northeast wind 8 to 10 mph, with gusts as high as 16 mph.

    High: 49 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 67.

    High: 67 °F

    Partly Sunny

Detailed Forecast

Today
Showers and possibly a thunderstorm before 2pm, then a slight chance of showers between 2pm and 4pm. Temperature falling to around 54 by 2pm. West wind 14 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 36. West northwest wind 10 to 15 mph, with gusts as high as 28 mph.
Sunday
Mostly sunny, with a high near 52. West northwest wind 10 to 14 mph, with gusts as high as 22 mph.
Sunday Night
Mostly clear, with a low around 37. West wind 6 to 8 mph.
Monday
Sunny, with a high near 55. Northwest wind 9 to 14 mph, with gusts as high as 22 mph.
Monday Night
Partly cloudy, with a low around 29. Northwest wind around 10 mph becoming north northeast after midnight. Winds could gust as high as 17 mph.
Tuesday
Mostly sunny, with a high near 49. East northeast wind 8 to 10 mph, with gusts as high as 16 mph.
Tuesday Night
Mostly cloudy, with a low around 36.
Wednesday
Partly sunny, with a high near 67.
Wednesday Night
Partly cloudy, with a low around 50.
Thursday
Mostly sunny, with a high near 71.
Thursday Night
Partly cloudy, with a low around 51.
Friday
Partly sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
Sullivan IL
 39.59°N 88.61°W (Elev. 669 ft)
7:42 am CDT Apr 4, 2026
8am CDT Apr 4, 2026-6pm CDT Apr 10, 2026
 
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Additional Resources

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