Hazardous Weather Conditions
Current conditions at
Mattoon / Charleston, Coles County Memorial Airport (KMTO)
Lat: 39.48°NLon: 88.28°WElev: 722ft.
Partly Cloudy
70°F
21°C
| Humidity | 49% |
| Wind Speed | S 12 G 23 mph |
| Barometer | 29.61 in (1002.3 mb) |
| Dewpoint | 50°F (10°C) |
| Visibility | 10.00 mi |
| Last update | 4 May 8:53 pm CDT |
Extended Forecast for
Sullivan IL
Severe T-storm Warning May 4, 09:47pm until May 4, 10:00pm
NOW until 10:00pm Mon
Severe T-storm Warning
Tonight
Low: 54 °F
Showers
LikelyTuesday
High: 58 °F
Showers
LikelyTuesday Night
Low: 43 °F
Showers
Wednesday
High: 56 °F
Partly Sunny
Wednesday Night
Low: 39 °F
Partly Cloudy
Thursday
High: 60 °F
Mostly Sunny
Thursday Night
Low: 44 °F
Mostly Clear
Friday
High: 67 °F
Mostly Sunny
Detailed Forecast
Tonight
A chance of showers and thunderstorms before 10pm, then showers likely and possibly a thunderstorm between 10pm and 3am, then a chance of showers and thunderstorms after 3am. Mostly cloudy, with a low around 54. South southwest wind 8 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
Showers likely and possibly a thunderstorm before 1pm, then showers likely between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Cloudy, with a high near 58. Northwest wind 8 to 11 mph becoming northeast in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Showers and possibly a thunderstorm before 7pm, then showers likely. Low around 43. Northeast wind 9 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Partly sunny, with a high near 56. North wind 8 to 10 mph, with gusts as high as 15 mph.
Wednesday Night
Partly cloudy, with a low around 39. North wind 6 to 8 mph.
Thursday
Mostly sunny, with a high near 60. West wind 6 to 10 mph, with gusts as high as 17 mph.
Thursday Night
Mostly clear, with a low around 44. South southwest wind 6 to 8 mph.
Friday
Mostly sunny, with a high near 67.
Friday Night
A 30 percent chance of showers before 1am. Partly cloudy, with a low around 46.
Saturday
Sunny, with a high near 73.
Saturday Night
Partly cloudy, with a low around 51.
Sunday
A chance of showers. Partly sunny, with a high near 70.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 48.
Monday
Mostly sunny, with a high near 68.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Sullivan IL
39.61°N 88.61°W (Elev. 669 ft)
39.61°N 88.61°W (Elev. 669 ft)
9:36 pm CDT May 4, 2026
9pm CDT May 4, 2026-6pm CDT May 11, 2026
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