Current conditions at
Mattoon / Charleston, Coles County Memorial Airport (KMTO)
Lat: 39.48°NLon: 88.28°WElev: 722ft.
Fair
53°F
12°C
| Humidity | 47% |
| Wind Speed | SW 10 G 31 mph |
| Barometer | 29.72 in (1006.7 mb) |
| Dewpoint | 33°F (1°C) |
| Visibility | NA |
| Wind Chill | 50°F (10°C) |
| Last update | 13 Jan 12:53 pm CST |
Extended Forecast for
Sullivan IL
This Afternoon

High: 53 °F
Cloudy
Tonight

Low: 34 °F
Mostly Cloudy
Wednesday
High: 35 °F⇓
Breezy.
Chance
Sprinkles/Flurries
then Chance
FlurriesWednesday Night

Low: 15 °F
Mostly Clear
Thursday

High: 27 °F
Sunny
Thursday Night

Low: 21 °F
Chance Snow
Friday

High: 38 °F
Mostly Cloudy
Friday Night

Low: 14 °F
Mostly Cloudy
Saturday

High: 20 °F
Mostly Cloudy
Detailed Forecast
This Afternoon
Cloudy, with a high near 53. West southwest wind 11 to 15 mph, with gusts as high as 28 mph.
Tonight
Mostly cloudy, with a low around 34. West southwest wind 9 to 15 mph becoming northwest after midnight. Winds could gust as high as 24 mph.
Wednesday
A chance of sprinkles and flurries before 8am, then a chance of flurries between 8am and 3pm. Partly sunny, with a temperature falling to around 25 by 5pm. Breezy, with a north northwest wind 17 to 22 mph, with gusts as high as 36 mph.
Wednesday Night
Mostly clear, with a low around 15. Wind chill values between 3 and 11. North northwest wind 9 to 16 mph, with gusts as high as 25 mph.
Thursday
Sunny, with a high near 27. North northwest wind 6 to 9 mph becoming south southwest in the afternoon. Winds could gust as high as 16 mph.
Thursday Night
A 50 percent chance of snow. Increasing clouds, with a low around 21. South southwest wind 6 to 15 mph, with gusts as high as 24 mph.
Friday
Mostly cloudy, with a high near 38. West wind 13 to 18 mph, with gusts as high as 29 mph.
Friday Night
Mostly cloudy, with a low around 14.
Saturday
Mostly cloudy, with a high near 20.
Saturday Night
Partly cloudy, with a low around 5.
Sunday
Mostly sunny, with a high near 21.
Sunday Night
Partly cloudy, with a low around 9.
M.L.King Day
Mostly sunny, with a high near 25.
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)
1:46 pm CST Jan 13, 2026
1pm CST Jan 13, 2026-6pm CST Jan 19, 2026


