Hazardous Weather Conditions
Current conditions at
Mattoon / Charleston, Coles County Memorial Airport (KMTO)
Lat: 39.48°NLon: 88.28°WElev: 722ft.
Fog/Mist
34°F
1°C
| Humidity | 97% |
| Wind Speed | S 12 mph |
| Barometer | 29.95 in (1014.6 mb) |
| Dewpoint | 33°F (1°C) |
| Visibility | 4.00 mi |
| Wind Chill | 25°F (-4°C) |
| Last update | 7 Dec 2:53 am CST |
Extended Forecast for
Sullivan IL
Winter Weather Advisory until December 7, 06:00am
NOW until 6:00am Sun

Winter Weather Advisory
Overnight

Low: 34 °F
Slight Chance
Rain and
Areas FogSunday

High: 34 °F
Areas Fog
Sunday Night

Low: 16 °F
Mostly Cloudy
Monday

High: 29 °F
Mostly Sunny
Monday Night

Low: 17 °F
Partly Cloudy
Tuesday

High: 43 °F
Partly Sunny
Tuesday Night

Low: 36 °F
Mostly Cloudy
Wednesday

High: 42 °F
Mostly Cloudy
Detailed Forecast
Overnight
A 20 percent chance of rain before 4am. Areas of fog. Otherwise, cloudy, with a steady temperature around 34. South wind around 7 mph.
Sunday
Areas of fog before 4pm. Otherwise, cloudy, with a high near 34. Light and variable wind becoming north 8 to 13 mph in the morning. Winds could gust as high as 24 mph.
Sunday Night
Mostly cloudy, with a low around 16. North wind 7 to 13 mph, with gusts as high as 21 mph.
Monday
Mostly sunny, with a high near 29. North northeast wind 5 to 7 mph becoming calm in the morning.
Monday Night
Partly cloudy, with a low around 17. Light south wind becoming south southwest 9 to 14 mph in the evening. Winds could gust as high as 22 mph.
Tuesday
Partly sunny, with a high near 43. South southwest wind around 14 mph, with gusts as high as 23 mph.
Tuesday Night
Mostly cloudy, with a low around 36. Southwest wind 13 to 18 mph, with gusts as high as 29 mph.
Wednesday
Mostly cloudy, with a high near 42.
Wednesday Night
Mostly cloudy, with a low around 23.
Thursday
A 30 percent chance of snow. Mostly cloudy, with a high near 31.
Thursday Night
Mostly cloudy, with a low around 12.
Friday
Partly sunny, with a high near 21.
Friday Night
Mostly cloudy, with a low around 2.
Saturday
Partly sunny, with a high near 15.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Sullivan IL
39.59°N 88.61°W (Elev. 669 ft)
39.59°N 88.61°W (Elev. 669 ft)
1:21 am CST Dec 7, 2025
3am CST Dec 7, 2025-6pm CST Dec 13, 2025



