Current conditions at
Mattoon / Charleston, Coles County Memorial Airport (KMTO)
Lat: 39.48°NLon: 88.28°WElev: 722ft.
Fair
43°F
6°C
| Humidity | 58% |
| Wind Speed | S 9 mph |
| Barometer | 30.14 in (1021.2 mb) |
| Dewpoint | 29°F (-2°C) |
| Visibility | 10.00 mi |
| Wind Chill | 38°F (3°C) |
| Last update | 12 Jan 5:53 pm CST |
Extended Forecast for
5 Miles S Sullivan IL
Tonight

Low: 34 °F
Clear
Tuesday

High: 54 °F
Partly Sunny
Tuesday Night

Low: 36 °F
Mostly Cloudy
Wednesday
High: 37 °F⇓
Mostly Cloudy
then Mostly
Cloudy and
BreezyWednesday Night

Low: 14 °F
Partly Cloudy
Thursday

High: 28 °F
Sunny
Thursday Night
Low: 20 °F
Mostly Cloudy
then Chance
SnowFriday
High: 37 °F
Mostly Cloudy
then Chance
SnowFriday Night

Low: 15 °F
Mostly Cloudy
Detailed Forecast
Tonight
Mostly cloudy during the early evening, then becoming clear, with a low around 34. South southwest wind 6 to 10 mph, with gusts as high as 20 mph.
Tuesday
Partly sunny, with a high near 54. West southwest wind 10 to 16 mph, with gusts as high as 30 mph.
Tuesday Night
Mostly cloudy, with a low around 36. West wind 7 to 11 mph, with gusts as high as 21 mph.
Wednesday
Mostly cloudy, with a temperature falling to around 28 by 5pm. Breezy, with a north northwest wind 13 to 21 mph, with gusts as high as 34 mph.
Wednesday Night
Partly cloudy, with a low around 14. North northwest wind 11 to 16 mph, with gusts as high as 29 mph.
Thursday
Sunny, with a high near 28. Northwest wind 7 to 10 mph becoming west southwest in the afternoon. Winds could gust as high as 18 mph.
Thursday Night
A 30 percent chance of snow after midnight. Mostly cloudy, with a low around 20. South southwest wind 6 to 11 mph, with gusts as high as 20 mph.
Friday
A 30 percent chance of snow after noon. Mostly cloudy, with a high near 37.
Friday Night
Mostly cloudy, with a low around 15.
Saturday
Mostly cloudy, with a high near 22.
Saturday Night
Mostly cloudy, with a low around 6.
Sunday
Mostly sunny, with a high near 18.
Sunday Night
Partly cloudy, with a low around 9.
M.L.King Day
Mostly sunny, with a high near 27.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
5 Miles S Sullivan IL
39.52°N 88.59°W (Elev. 617 ft)
39.52°N 88.59°W (Elev. 617 ft)
5:36 pm CST Jan 12, 2026
6pm CST Jan 12, 2026-6pm CST Jan 19, 2026


