Hazardous Weather Conditions
Current conditions at
Mattoon / Charleston, Coles County Memorial Airport (KMTO)
Lat: 39.48°NLon: 88.28°WElev: 722ft.
Fair
79°F
26°C
| Humidity | 79% |
| Wind Speed | S 3 mph |
| Barometer | 29.99 in (1014.7 mb) |
| Dewpoint | 72°F (22°C) |
| Visibility | 10.00 mi |
| Heat Index | 82°F (28°C) |
| Last update | 2 Sep 11:53 pm CDT |
Extended Forecast for
3 Miles S Sullivan IL
Extreme Heat Warning until September 4, 07:00pm
NOW until 7:00pm Fri
Extreme Heat Warning
Overnight
Low: 76 °F
Mostly Clear
Thursday
High: 97 °F
Hot
Thursday Night
Low: 75 °F
Mostly Clear
Friday
High: 97 °F
Hot
Friday Night
Low: 74 °F
Mostly Clear
Saturday
High: 93 °F
Mostly Sunny
Saturday Night
Low: 69 °F
Partly Cloudy
Sunday
High: 90 °F
Mostly Sunny
Detailed Forecast
Overnight
Mostly clear, with a low around 76. South wind around 6 mph.
Thursday
Sunny and hot, with a high near 97. Heat index values as high as 102. Southwest wind 6 to 8 mph.
Thursday Night
Mostly clear, with a low around 75. South wind 3 to 5 mph.
Friday
Sunny and hot, with a high near 97. Heat index values as high as 102. West southwest wind 3 to 5 mph.
Friday Night
Mostly clear, with a low around 74. Calm wind.
Saturday
Mostly sunny, with a high near 93. Light and variable wind.
Saturday Night
Partly cloudy, with a low around 69. Light east wind.
Sunday
Mostly sunny, with a high near 90.
Sunday Night
Mostly clear, with a low around 65.
Labor Day
Sunny, with a high near 89.
Monday Night
Partly cloudy, with a low around 66.
Tuesday
Mostly sunny, with a high near 91.
Tuesday Night
Mostly clear, with a low around 71.
Wednesday
Sunny, with a high near 94.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles S Sullivan IL
39.56°N 88.61°W (Elev. 614 ft)
39.56°N 88.61°W (Elev. 614 ft)
10:36 pm CDT Sep 2, 2026
12am CDT Sep 3, 2026-6pm CDT Sep 9, 2026
Additional Resources
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