Current conditions at
Mattoon / Charleston, Coles County Memorial Airport (KMTO)
Lat: 39.48°NLon: 88.28°WElev: 722ft.
Fair
62°F
17°C
| Humidity | 96% |
| Wind Speed | N 3 mph |
| Barometer | 30.04 in (1016.7 mb) |
| Dewpoint | 61°F (16°C) |
| Visibility | 9.00 mi |
| Last update | 30 Jul 4:53 am CDT |
Extended Forecast for
Sullivan IL
Today
High: 83 °F
Sunny
Tonight
Low: 63 °F
Partly Cloudy
Friday
High: 82 °F
Mostly Sunny
then Chance
ShowersFriday Night
Low: 65 °F
Showers
Saturday
High: 77 °F
Showers
Saturday Night
Low: 62 °F
Chance
ShowersSunday
High: 80 °F
Mostly Sunny
Sunday Night
Low: 61 °F
Mostly Clear
Monday
High: 82 °F
Sunny
Detailed Forecast
Today
Sunny, with a high near 83. East southeast wind 3 to 6 mph.
Tonight
Partly cloudy, with a low around 63. Southeast wind 3 to 5 mph.
Friday
A chance of showers before 3pm, then a chance of showers and thunderstorms between 3pm and 5pm, then a chance of showers after 5pm. Increasing clouds, with a high near 82. South wind 6 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Friday Night
Showers before 7pm, then showers and possibly a thunderstorm between 7pm and 4am, then showers after 4am. Low around 65. Southeast wind around 10 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Saturday
Showers before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then showers likely after 4pm. High near 77. East southeast wind 9 to 14 mph becoming north northeast in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 62. North wind 10 to 14 mph, with gusts as high as 21 mph.
Sunday
Mostly sunny, with a high near 80. North northeast wind around 14 mph, with gusts as high as 22 mph.
Sunday Night
Mostly clear, with a low around 61.
Monday
Sunny, with a high near 82.
Monday Night
Mostly clear, with a low around 63.
Tuesday
A chance of showers. Sunny, with a high near 84.
Tuesday Night
Mostly clear, with a low around 65.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 85.
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)
5:26 am CDT Jul 30, 2026
5am CDT Jul 30, 2026-6pm CDT Aug 5, 2026
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