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Hazardous Weather Conditions
Current conditions at
Mattoon / Charleston, Coles County Memorial Airport (KMTO)
Lat: 39.48°NLon: 88.28°WElev: 722ft.
Fair
44°F
7°C
| Humidity | 83% |
| Wind Speed | S 6 mph |
| Barometer | 30.38 in (1029.0 mb) |
| Dewpoint | 39°F (4°C) |
| Visibility | 10.00 mi |
| Wind Chill | 41°F (5°C) |
| Last update | 18 Oct 11:53 pm CDT |
Extended Forecast for
Sullivan IL
Overnight
Low: 37 °F
Clear
Monday
High: 72 °F
Patchy Frost
then SunnyMonday Night
Low: 39 °F
Mostly Clear
Tuesday
High: 74 °F
Sunny
Tuesday Night
Low: 42 °F
Mostly Clear
Wednesday
High: 75 °F
Sunny
Wednesday Night
Low: 44 °F
Clear
Thursday
High: 75 °F
Sunny
Thursday Night
Low: 47 °F
Clear
Detailed Forecast
Overnight
Clear, with a low around 37. Calm wind.
Monday
Patchy frost before 8am. Otherwise, sunny, with a high near 72. Calm wind.
Monday Night
Mostly clear, with a low around 39. Calm wind.
Tuesday
Sunny, with a high near 74. Calm wind.
Tuesday Night
Mostly clear, with a low around 42. Calm wind.
Wednesday
Sunny, with a high near 75. Calm wind.
Wednesday Night
Clear, with a low around 44. Calm wind.
Thursday
Sunny, with a high near 75.
Thursday Night
Clear, with a low around 47.
Friday
Sunny, with a high near 74.
Friday Night
Clear, with a low around 45.
Saturday
Sunny, with a high near 74.
Saturday Night
Partly cloudy, with a low around 48.
Sunday
Mostly sunny, with a high near 77.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Sullivan IL
39.59°N 88.58°W (Elev. 633 ft)
39.59°N 88.58°W (Elev. 633 ft)
12:31 am CDT Oct 19, 2026
12am CDT Oct 19, 2026-6pm CDT Oct 25, 2026
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