Hazardous Weather Conditions
Current conditions at
Mattoon / Charleston, Coles County Memorial Airport (KMTO)
Lat: 39.48°NLon: 88.28°WElev: 722ft.
Overcast and Windy
25°F
-4°C
| Humidity | 58% |
| Wind Speed | N 29 G 43 mph |
| Barometer | 29.95 in (1014.9 mb) |
| Dewpoint | 12°F (-11°C) |
| Visibility | 10.00 mi |
| Wind Chill | 8°F (-13°C) |
| Last update | 14 Jan 3:53 pm CST |
Extended Forecast for
Sullivan IL
Tonight

Low: 15 °F
Mostly Clear
Thursday

High: 27 °F
Sunny
Thursday Night

Low: 23 °F
Snow Likely
Friday

High: 39 °F
Mostly Cloudy
Friday Night
Low: 16 °F
Mostly Cloudy
then Chance
SnowSaturday

High: 21 °F
Mostly Cloudy
Saturday Night

Low: 5 °F
Partly Cloudy
Sunday

High: 18 °F
Mostly Sunny
Sunday Night

Low: 9 °F
Mostly Cloudy
Detailed Forecast
Tonight
Mostly clear, with a low around 15. Wind chill values between 4 and 9. North northwest wind 11 to 18 mph, with gusts as high as 29 mph.
Thursday
Sunny, with a high near 27. Wind chill values between 2 and 12. Northwest wind 7 to 11 mph becoming southwest in the afternoon. Winds could gust as high as 18 mph.
Thursday Night
Snow likely, mainly after midnight. Mostly cloudy, with a low around 23. South southwest wind 7 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Friday
Mostly cloudy, with a high near 39. West wind 11 to 17 mph, with gusts as high as 28 mph.
Friday Night
A 30 percent chance of snow after midnight. Mostly cloudy, with a low around 16. West wind 10 to 14 mph, with gusts as high as 21 mph.
Saturday
Mostly cloudy, with a high near 21. West wind 11 to 16 mph, with gusts as high as 24 mph.
Saturday Night
Partly cloudy, with a low around 5. West northwest wind around 10 mph, with gusts as high as 17 mph.
Sunday
Mostly sunny, with a high near 18.
Sunday Night
Mostly cloudy, with a low around 9.
M.L.King Day
Mostly sunny, with a high near 19.
Monday Night
Mostly clear, with a low around 4.
Tuesday
Mostly sunny, with a high near 23.
Tuesday Night
Partly cloudy, with a low around 14.
Wednesday
Mostly sunny, with a high near 34.
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)
3:36 pm CST Jan 14, 2026
4pm CST Jan 14, 2026-6pm CST Jan 21, 2026



