Current conditions at
Mattoon / Charleston, Coles County Memorial Airport (KMTO)
Lat: 39.48°NLon: 88.28°WElev: 722ft.
Overcast
35°F
2°C
| Humidity | 78% |
| Wind Speed | SW 10 mph |
| Barometer | 29.94 in (1014.6 mb) |
| Dewpoint | 29°F (-2°C) |
| Visibility | 10.00 mi |
| Wind Chill | 27°F (-3°C) |
| Last update | 31 Dec 12:53 pm CST |
Extended Forecast for
Sullivan IL
This Afternoon
High: 38 °F
Mostly Cloudy
Tonight
Low: 21 °F
Mostly Cloudy
New Year's Day
High: 31 °F
Mostly Sunny
Thursday Night
Low: 20 °F
Partly Cloudy
Friday
High: 35 °F
Partly Sunny
Friday Night
Low: 22 °F
Mostly Cloudy
Saturday
High: 36 °F
Partly Sunny
Saturday Night
Low: 20 °F
Mostly Clear
Sunday
High: 37 °F
Mostly Sunny
Detailed Forecast
This Afternoon
Mostly cloudy, with a high near 38. West wind 10 to 13 mph, with gusts as high as 22 mph.
Tonight
Mostly cloudy, with a low around 21. West wind 8 to 10 mph becoming north after midnight. Winds could gust as high as 18 mph.
New Year's Day
Mostly sunny, with a high near 31. North wind 5 to 8 mph becoming calm in the afternoon.
Thursday Night
Partly cloudy, with a low around 20. Calm wind.
Friday
Partly sunny, with a high near 35. Calm wind becoming northeast around 5 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 22. Northeast wind around 6 mph.
Saturday
Partly sunny, with a high near 36. Northeast wind 3 to 6 mph.
Saturday Night
Mostly clear, with a low around 20.
Sunday
Mostly sunny, with a high near 37.
Sunday Night
Mostly cloudy, with a low around 28.
Monday
Mostly sunny, with a high near 50.
Monday Night
Partly cloudy, with a low around 34.
Tuesday
Partly sunny, with a high near 53.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Sullivan IL
39.59°N 88.61°W (Elev. 669 ft)
39.59°N 88.61°W (Elev. 669 ft)
12:52 pm CST Dec 31, 2025
1pm CST Dec 31, 2025-6pm CST Jan 6, 2026
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