Hazardous Weather Conditions
Current conditions at
Mattoon / Charleston, Coles County Memorial Airport (KMTO)
Lat: 39.48°NLon: 88.28°WElev: 722ft.
A Few Clouds
74°F
23°C
| Humidity | 64% |
| Wind Speed | SW 15 G 35 mph |
| Barometer | 29.90 in (1012.0 mb) |
| Dewpoint | 61°F (16°C) |
| Visibility | 10.00 mi |
| Last update | 15 Apr 10:53 am CDT |
Extended Forecast for
Sullivan IL
Today
High: 79 °F
Chance
T-stormsTonight
Low: 61 °F
Showers
LikelyThursday
High: 78 °F
Chance
ShowersThursday Night
Low: 55 °F
Mostly Clear
Friday
High: 83 °F
Mostly Sunny
Friday Night
Low: 54 °F
Showers
Saturday
High: 67 °F
Chance
T-stormsSaturday Night
Low: 37 °F
Partly Cloudy
Sunday
High: 56 °F
Sunny
Detailed Forecast
Today
A 40 percent chance of showers and thunderstorms. Cloudy, with a high near 79. South southwest wind around 16 mph, with gusts as high as 26 mph.
Tonight
Showers likely and possibly a thunderstorm before 3am, then a chance of showers and thunderstorms after 3am. Cloudy, with a low around 61. South southwest wind 11 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday
A chance of showers and thunderstorms before 2pm, then a slight chance of showers between 2pm and 4pm. Mostly cloudy, then gradually becoming sunny, with a high near 78. West southwest wind 11 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Thursday Night
Mostly clear, with a low around 55. West southwest wind 5 to 7 mph.
Friday
Mostly sunny, with a high near 83. South wind 6 to 14 mph, with gusts as high as 23 mph.
Friday Night
Showers and possibly a thunderstorm. Low around 54. South wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 67. West wind 14 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.
Saturday Night
Partly cloudy, with a low around 37.
Sunday
Sunny, with a high near 56.
Sunday Night
Mostly clear, with a low around 36.
Monday
Sunny, with a high near 64.
Monday Night
Mostly clear, with a low around 47.
Tuesday
Mostly sunny, with a high near 73.
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)
11:11 am CDT Apr 15, 2026
11am CDT Apr 15, 2026-6pm CDT Apr 21, 2026
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