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Current conditions at
Mattoon / Charleston, Coles County Memorial Airport (KMTO)
Lat: 39.48°NLon: 88.28°WElev: 722ft.
Fair
49°F
9°C
| Humidity | 59% |
| Wind Speed | NW 3 mph |
| Barometer | 30.08 in (1018.8 mb) |
| Dewpoint | 35°F (2°C) |
| Visibility | 10.00 mi |
| Last update | 22 Nov 3:53 pm CST |
Extended Forecast for
Sullivan IL
Tonight

Low: 37 °F
Mostly Clear
Sunday

High: 55 °F
Sunny
Sunday Night

Low: 34 °F
Increasing
CloudsMonday
High: 55 °F
Mostly Cloudy
then Chance
RainMonday Night

Low: 46 °F
Rain
Tuesday

High: 59 °F
Mostly Cloudy
Tuesday Night

Low: 32 °F
Mostly Cloudy
Wednesday

High: 42 °F
Mostly Sunny
Wednesday Night

Low: 23 °F
Mostly Clear
Detailed Forecast
Tonight
Mostly clear, with a low around 37. West southwest wind 6 to 9 mph, with gusts as high as 15 mph.
Sunday
Sunny, with a high near 55. Northwest wind around 6 mph becoming calm in the afternoon.
Sunday Night
Increasing clouds, with a low around 34. Calm wind becoming south southeast around 6 mph after midnight.
Monday
A 30 percent chance of rain after noon. Mostly cloudy, with a high near 55. South southeast wind 6 to 10 mph, with gusts as high as 16 mph.
Monday Night
Rain. Low around 46. South wind around 7 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
Mostly cloudy, with a high near 59. West southwest wind 6 to 8 mph.
Tuesday Night
Mostly cloudy, with a low around 32. West wind 7 to 13 mph, with gusts as high as 20 mph.
Wednesday
Mostly sunny, with a high near 42.
Wednesday Night
Mostly clear, with a low around 23.
Thanksgiving Day
Sunny, with a high near 38.
Thursday Night
Partly cloudy, with a low around 20.
Friday
Mostly sunny, with a high near 39.
Friday Night
Partly cloudy, with a low around 23.
Saturday
Partly sunny, with a high near 43.
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)
3:35 pm CST Nov 22, 2025
4pm CST Nov 22, 2025-6pm CST Nov 29, 2025


