


Current conditions at
Mattoon / Charleston, Coles County Memorial Airport (KMTO)
Lat: 39.48°NLon: 88.28°WElev: 722ft.
Fair
65°F
18°C
Humidity | 70% |
Wind Speed | SE 5 mph |
Barometer | 30.13 in (1019.7 mb) |
Dewpoint | 55°F (13°C) |
Visibility | 10.00 mi |
Last update | 30 Sep 1:53 am CDT |
Extended Forecast for
Sullivan IL
Overnight
Low: 59 °F
Clear
Tuesday
High: 89 °F
Sunny
Tuesday Night
Low: 54 °F
Partly Cloudy
Wednesday
High: 86 °F
Partly Sunny
Wednesday Night
Low: 56 °F
Mostly Cloudy
Thursday
High: 85 °F
Mostly Sunny
Thursday Night
Low: 56 °F
Mostly Clear
Friday
High: 87 °F
Sunny
Friday Night
Low: 57 °F
Clear
Detailed Forecast
Overnight
Clear, with a low around 59. North wind around 6 mph.
Tuesday
Sunny, with a high near 89. Light north northeast wind becoming northeast 5 to 10 mph in the morning.
Tuesday Night
Partly cloudy, with a low around 54. East northeast wind around 6 mph.
Wednesday
Partly sunny, with a high near 86. East wind around 7 mph.
Wednesday Night
Mostly cloudy, with a low around 56. East wind around 6 mph.
Thursday
Mostly sunny, with a high near 85. Southeast wind around 5 mph.
Thursday Night
Mostly clear, with a low around 56. Southeast wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 87.
Friday Night
Clear, with a low around 57.
Saturday
Sunny, with a high near 85.
Saturday Night
Mostly clear, with a low around 56.
Sunday
Sunny, with a high near 85.
Sunday Night
Mostly clear, with a low around 59.
Monday
Sunny, with a high near 86.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Sullivan IL
39.61°N 88.61°W (Elev. 669 ft)
39.61°N 88.61°W (Elev. 669 ft)
1:40 am CDT Sep 30, 2025
2am CDT Sep 30, 2025-6pm CDT Oct 6, 2025