Hazardous Weather Conditions
Current conditions at
Mattoon / Charleston, Coles County Memorial Airport (KMTO)
Lat: 39.48°NLon: 88.28°WElev: 722ft.
Fair
30°F
-1°C
| Humidity | 88% |
| Wind Speed | SE 7 mph |
| Barometer | 29.96 in (1015.3 mb) |
| Dewpoint | 27°F (-3°C) |
| Visibility | 9.00 mi |
| Wind Chill | 23°F (-5°C) |
| Last update | 6 Dec 8:53 pm CST |
Extended Forecast for
Sullivan IL
Winter Weather Advisory until December 7, 06:00am
NOW until 6:00am Sun
Winter Weather Advisory
Tonight
Low: 27 °F
Cloudy then
Chance
Rain/Freezing
Rain and
Patchy FogSunday
High: 35 °F
Chance Rain
and Patchy
Fog then
CloudySunday Night

Low: 13 °F
Mostly Cloudy
Monday

High: 26 °F
Mostly Sunny
Monday Night

Low: 15 °F
Partly Cloudy
Tuesday

High: 42 °F
Partly Sunny
Tuesday Night
Low: 35 °F
Mostly Cloudy
then Chance
RainWednesday

High: 41 °F
Mostly Cloudy
Detailed Forecast
Tonight
A slight chance of freezing rain between midnight and 3am, then a chance of rain. Patchy fog after 1am. Otherwise, cloudy, with a low around 27. South southeast wind around 6 mph. Chance of precipitation is 30%.
Sunday
A 30 percent chance of rain, mainly before 9am. Patchy fog before 11am. Otherwise, cloudy, with a high near 35. South wind 6 to 11 mph becoming north in the afternoon. Winds could gust as high as 21 mph.
Sunday Night
Mostly cloudy, with a low around 13. Wind chill values between 5 and 10. North wind 6 to 10 mph, with gusts as high as 16 mph.
Monday
Mostly sunny, with a high near 26. North northeast wind around 6 mph becoming calm in the morning.
Monday Night
Partly cloudy, with a low around 15. Light south southeast wind becoming south southwest 9 to 14 mph in the evening. Winds could gust as high as 21 mph.
Tuesday
Partly sunny, with a high near 42. South southwest wind 11 to 14 mph, with gusts as high as 21 mph.
Tuesday Night
A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 35. Southwest wind 11 to 17 mph, with gusts as high as 25 mph.
Wednesday
Mostly cloudy, with a high near 41.
Wednesday Night
A 30 percent chance of snow after midnight. Mostly cloudy, with a low around 21.
Thursday
A 30 percent chance of snow before noon. Mostly cloudy, with a high near 31.
Thursday Night
Mostly cloudy, with a low around 13.
Friday
Partly sunny, with a high near 21.
Friday Night
Mostly cloudy, with a low around 1.
Saturday
Mostly sunny, with a high near 15.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Sullivan IL
39.59°N 88.61°W (Elev. 669 ft)
39.59°N 88.61°W (Elev. 669 ft)
8:37 pm CST Dec 6, 2025
9pm CST Dec 6, 2025-6pm CST Dec 13, 2025



