Current conditions at
Mattoon / Charleston, Coles County Memorial Airport (KMTO)
Lat: 39.48°NLon: 88.28°WElev: 722ft.
Light Rain
61°F
16°C
| Humidity | 93% |
| Wind Speed | SW 12 G 18 mph |
| Barometer | 29.86 in (1010.9 mb) |
| Dewpoint | 59°F (15°C) |
| Visibility | 10.00 mi |
| Last update | 16 Apr 4:53 am CDT |
Extended Forecast for
Charleston IL
Overnight

Low: 62 °F
Showers
Thursday
High: 78 °F
Showers
Likely then
SunnyThursday Night

Low: 56 °F
Mostly Clear
Friday

High: 82 °F
Mostly Sunny
Friday Night
Low: 52 °F
Showers
Likely then
ShowersSaturday

High: 62 °F
Showers
LikelySaturday Night

Low: 37 °F
Mostly Clear
then Patchy
FrostSunday

High: 58 °F
Patchy Frost
then SunnySunday Night

Low: 37 °F
Mostly Clear
Detailed Forecast
Overnight
Showers. Low around 62. South southwest wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Showers likely, mainly before 8am. Cloudy through mid morning, then gradual clearing, with a high near 78. West wind 11 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Mostly clear, with a low around 56. West wind 5 to 7 mph becoming light and variable.
Friday
Mostly sunny, with a high near 82. South wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 28 mph.
Friday Night
Showers and possibly a thunderstorm. Low around 52. South wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
Showers likely, mainly before 1pm. Partly sunny, with a high near 62. West northwest wind 14 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
Patchy frost after 3am. Otherwise, mostly clear, with a low around 37. Northwest wind 8 to 11 mph, with gusts as high as 21 mph.
Sunday
Patchy frost before 8am. Otherwise, sunny, with a high near 58.
Sunday Night
Mostly clear, with a low around 37.
Monday
Sunny, with a high near 64.
Monday Night
Mostly clear, with a low around 48.
Tuesday
Mostly sunny, with a high near 72.
Tuesday Night
Partly cloudy, with a low around 53.
Wednesday
Sunny, with a high near 74.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Charleston IL
39.5°N 88.19°W (Elev. 650 ft)
39.5°N 88.19°W (Elev. 650 ft)
5:11 am CDT Apr 16, 2026
5am CDT Apr 16, 2026-6pm CDT Apr 22, 2026


