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Current conditions at
Mattoon / Charleston, Coles County Memorial Airport (KMTO)
Lat: 39.48°NLon: 88.28°WElev: 722ft.
Partly Cloudy
69°F
21°C
| Humidity | 81% |
| Wind Speed | S 7 mph |
| Barometer | 30.05 in (1017.2 mb) |
| Dewpoint | 63°F (17°C) |
| Visibility | 10.00 mi |
| Last update | 30 Aug 6:53 am CDT |
Extended Forecast for
Sullivan IL
Today
High: 90 °F
Mostly Sunny
Tonight
Low: 70 °F
Partly Cloudy
Monday
High: 93 °F
Mostly Sunny
Monday Night
Low: 74 °F
Mostly Clear
Tuesday
High: 97 °F
Hot
Tuesday Night
Low: 76 °F
Mostly Clear
Wednesday
High: 98 °F
Hot
Wednesday Night
Low: 75 °F
Mostly Clear
Thursday
High: 98 °F
Hot
Detailed Forecast
Today
Mostly sunny, with a high near 90. South wind 8 to 11 mph, with gusts as high as 17 mph.
Tonight
Partly cloudy, with a low around 70. South wind around 8 mph.
Monday
Mostly sunny, with a high near 93. South southwest wind 8 to 11 mph, with gusts as high as 18 mph.
Monday Night
Mostly clear, with a low around 74. South wind around 8 mph.
Tuesday
Sunny and hot, with a high near 97. Southwest wind 7 to 9 mph.
Tuesday Night
Mostly clear, with a low around 76. South wind 5 to 8 mph.
Wednesday
Sunny and hot, with a high near 98. Southwest wind 7 to 10 mph, with gusts as high as 15 mph.
Wednesday Night
Mostly clear, with a low around 75.
Thursday
Sunny and hot, with a high near 98.
Thursday Night
Partly cloudy, with a low around 73.
Friday
Mostly sunny and hot, with a high near 95.
Friday Night
Partly cloudy, with a low around 71.
Saturday
A chance of showers. Mostly sunny, with a high near 91.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Sullivan IL
39.61°N 88.61°W (Elev. 669 ft)
39.61°N 88.61°W (Elev. 669 ft)
6:36 am CDT Aug 30, 2026
7am CDT Aug 30, 2026-6pm CDT Sep 5, 2026
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