Current conditions at
Mattoon / Charleston, Coles County Memorial Airport (KMTO)
Lat: 39.48°NLon: 88.28°WElev: 722ft.
Fair
81°F
27°C
| Humidity | 72% |
| Wind Speed | Calm |
| Barometer | 30.03 in (1016.4 mb) |
| Dewpoint | 71°F (22°C) |
| Visibility | 10.00 mi |
| Heat Index | 85°F (29°C) |
| Last update | 14 Jul 7:53 pm CDT |
Extended Forecast for
Sullivan IL
Tonight
Low: 69 °F
Increasing
CloudsTuesday
High: 85 °F
Chance
T-stormsTuesday Night
Low: 70 °F
Slight Chance
T-stormsWednesday
High: 89 °F
Mostly Sunny
Wednesday Night
Low: 73 °F
Chance
T-stormsThursday
High: 88 °F
Mostly Sunny
then Chance
T-stormsThursday Night
Low: 68 °F
Chance
T-stormsFriday
High: 84 °F
Partly Sunny
then Chance
T-stormsFriday Night
Low: 70 °F
Mostly Cloudy
Detailed Forecast
Tonight
Increasing clouds, with a low around 69. Calm wind.
Tuesday
A 50 percent chance of showers and thunderstorms, mainly after 11am. Partly sunny, with a high near 85. South southeast wind 3 to 6 mph.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Light south southeast wind.
Wednesday
Mostly sunny, with a high near 89. Southwest wind 3 to 7 mph.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 73. South southwest wind around 5 mph.
Thursday
A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. West southwest wind 6 to 8 mph.
Thursday Night
A 40 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 68. West wind around 5 mph becoming light and variable in the evening.
Friday
A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84.
Friday Night
Mostly cloudy, with a low around 70.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 71.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88.
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)
7:40 pm CDT Jul 14, 2025
8pm CDT Jul 14, 2025-6pm CDT Jul 21, 2025
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