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Hazardous Weather Conditions
Current conditions at
Mattoon / Charleston, Coles County Memorial Airport (KMTO)
Lat: 39.48°NLon: 88.28°WElev: 722ft.
Fog/Mist
68°F
20°C
| Humidity | 90% |
| Wind Speed | SE 7 mph |
| Barometer | 30.06 in (1017.6 mb) |
| Dewpoint | 65°F (18°C) |
| Visibility | 5.00 mi |
| Last update | 15 Oct 9:53 am CDT |
Extended Forecast for
Charleston IL
Today
High: 78 °F
Chance
Showers then
Showers
LikelyTonight
Low: 49 °F
Showers
LikelyFriday
High: 56 °F
Mostly Cloudy
then Chance
ShowersFriday Night
Low: 38 °F
Partly Cloudy
Saturday
High: 59 °F
Sunny
Saturday Night
Low: 34 °F
Clear then
Areas FrostSunday
High: 66 °F
Frost then
SunnySunday Night
Low: 38 °F
Clear
Monday
High: 72 °F
Mostly Sunny
Detailed Forecast
Today
A slight chance of showers before 11am, then a chance of showers and thunderstorms between 11am and noon, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 78. East southeast wind 8 to 10 mph becoming south in the afternoon. Winds could gust as high as 17 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Mostly cloudy, with a low around 49. Southwest wind 13 to 17 mph becoming west northwest after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A 30 percent chance of showers, mainly after 5pm. Cloudy, then gradually becoming mostly sunny, with a high near 56. Northwest wind 16 to 18 mph, with gusts as high as 31 mph.
Friday Night
Partly cloudy, with a low around 38. North wind 10 to 15 mph, with gusts as high as 24 mph.
Saturday
Sunny, with a high near 59. North northeast wind 3 to 8 mph.
Saturday Night
Areas of frost after 3am. Otherwise, clear, with a low around 34. Light and variable wind.
Sunday
Widespread frost, mainly before 7am. Otherwise, sunny, with a high near 66. South wind 3 to 7 mph.
Sunday Night
Clear, with a low around 38.
Monday
Mostly sunny, with a high near 72.
Monday Night
Partly cloudy, with a low around 42.
Tuesday
Mostly sunny, with a high near 74.
Tuesday Night
Mostly clear, with a low around 44.
Wednesday
Sunny, with a high near 75.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Charleston IL
39.48°N 88.19°W (Elev. 650 ft)
39.48°N 88.19°W (Elev. 650 ft)
9:37 am CDT Oct 15, 2026
10am CDT Oct 15, 2026-6pm CDT Oct 21, 2026
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