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.

Overcast

49°F

9°C

Humidity 90%
Wind Speed S 15 G 25 mph
Barometer 29.81 in (1009.6 mb)
Dewpoint 46°F (8°C)
Visibility 7.00 mi
Wind Chill43°F (6°C)
Last update 17 Feb 3:53 pm CST
Extended Forecast for

Sullivan IL

Wind Advisory February 17, 07:00pm until February 18, 01:00am
Click here for hazard details and duration
Wind Advisory

  • This Afternoon

    This Afternoon: A chance of sprinkles after 5pm. Cloudy, with a high near 57. South wind around 16 mph, with gusts as high as 30 mph.

    High: 57 °F

    Chance
    Sprinkles

  • Tonight

    Tonight: A chance of sprinkles between 10pm and 11pm, then a chance of rain after 11pm. Cloudy, with a low around 52. Breezy, with a south wind 17 to 21 mph, with gusts as high as 43 mph. Chance of precipitation is 50%.

    Low: 52 °F

    Chance Rain
    and Breezy

  • Wednesday

    Wednesday: Partly sunny, then gradually becoming sunny, with a high near 68. West southwest wind 10 to 18 mph, with gusts as high as 30 mph.

    High: 68 °F

    Becoming
    Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 47. South southeast wind 6 to 8 mph.

    Low: 47 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Rain likely, mainly after noon. Partly sunny, with a high near 67. South southeast wind 8 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 67 °F

    Chance Rain
    then Rain
    Likely

  • Thursday Night

    Thursday Night: A 30 percent chance of rain before midnight. Partly cloudy, with a low around 35. South wind 11 to 18 mph becoming west after midnight. Winds could gust as high as 26 mph.

    Low: 35 °F

    Chance Rain
    then Partly
    Cloudy

  • Friday

    Friday: Sunny, with a high near 45. Breezy, with a west wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 45 °F

    Sunny and
    Breezy

  • Friday Night

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

    Low: 27 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A chance of sprinkles after 5pm. Cloudy, with a high near 57. South wind around 16 mph, with gusts as high as 30 mph.
Tonight
A chance of sprinkles between 10pm and 11pm, then a chance of rain after 11pm. Cloudy, with a low around 52. Breezy, with a south wind 17 to 21 mph, with gusts as high as 43 mph. Chance of precipitation is 50%.
Wednesday
Partly sunny, then gradually becoming sunny, with a high near 68. West southwest wind 10 to 18 mph, with gusts as high as 30 mph.
Wednesday Night
Increasing clouds, with a low around 47. South southeast wind 6 to 8 mph.
Thursday
Rain likely, mainly after noon. Partly sunny, with a high near 67. South southeast wind 8 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
A 30 percent chance of rain before midnight. Partly cloudy, with a low around 35. South wind 11 to 18 mph becoming west after midnight. Winds could gust as high as 26 mph.
Friday
Sunny, with a high near 45. Breezy, with a west wind 10 to 20 mph, with gusts as high as 30 mph.
Friday Night
Mostly clear, with a low around 27.
Saturday
Mostly sunny, with a high near 40.
Saturday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 24.
Sunday
Mostly sunny, with a high near 33.
Sunday Night
Mostly clear, with a low around 17.
Monday
Sunny, with a high near 34.
Monday Night
Partly cloudy, with a low around 17.
Tuesday
Mostly sunny, with a high near 40.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sullivan IL
 39.61°N 88.61°W (Elev. 669 ft)
Last Update:
3:36 pm CST Feb 17, 2026
Forecast Valid:
4pm CST Feb 17, 2026-6pm CST Feb 24, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation