Hazardous Weather Conditions
Current conditions at
Mattoon / Charleston, Coles County Memorial Airport (KMTO)
Lat: 39.48°NLon: 88.28°WElev: 722ft.
Overcast
47°F
8°C
| Humidity | 97% |
| Wind Speed | E 10 mph |
| Barometer | 29.99 in (1015.7 mb) |
| Dewpoint | 46°F (8°C) |
| Visibility | 9.00 mi |
| Wind Chill | 42°F (6°C) |
| Last update | 1 Apr 9:53 pm CDT |
Extended Forecast for
Sullivan IL
Wind Advisory April 2, 10:00am until April 2, 06:00pm
Tonight
Low: 47 °F⇑
Chance
T-storms then
Showers
LikelyThursday
High: 74 °F
Breezy.
Slight Chance
T-storms then
Chance
T-stormsThursday Night
Low: 61 °F
Chance
T-storms and
Breezy then
Chance
ShowersFriday
High: 76 °F
Chance
Showers then
Showers
LikelyFriday Night
Low: 57 °F
Chance
T-storms then
ShowersSaturday
High: 64 °F
Showers
Saturday Night
Low: 37 °F
Mostly Cloudy
Sunday
High: 52 °F
Mostly Sunny
Sunday Night
Low: 34 °F
Mostly Clear
Detailed Forecast
Tonight
A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 2am, then a chance of showers and thunderstorms after 2am. Cloudy, with a temperature rising to around 54 by 5am. East wind 10 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Cloudy, with a high near 74. Breezy, with a south wind 16 to 26 mph, with gusts as high as 45 mph. Chance of precipitation is 50%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, then gradually becoming mostly clear, with a low around 61. Breezy, with a south wind 18 to 23 mph decreasing to 11 to 16 mph after midnight. Winds could gust as high as 36 mph. Chance of precipitation is 40%.
Friday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 76. South southwest wind 9 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 57. South wind around 14 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
Showers and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. High near 64. South southwest wind 14 to 16 mph becoming west in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Mostly cloudy, with a low around 37. West northwest wind 13 to 16 mph, with gusts as high as 22 mph.
Sunday
Mostly sunny, with a high near 52.
Sunday Night
Mostly clear, with a low around 34.
Monday
Sunny, with a high near 60.
Monday Night
Partly cloudy, with a low around 35.
Tuesday
Mostly sunny, with a high near 53.
Tuesday Night
Partly cloudy, with a low around 33.
Wednesday
Mostly sunny, with a high near 62.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
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)
10:36 pm CDT Apr 1, 2026
10pm CDT Apr 1, 2026-6pm CDT Apr 8, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
