Current conditions at
Mattoon / Charleston, Coles County Memorial Airport (KMTO)
Lat: 39.48°NLon: 88.28°WElev: 722ft.
A Few Clouds
56°F
13°C
| Humidity | 90% |
| Wind Speed | NW 6 mph |
| Barometer | 30.01 in (1015.9 mb) |
| Dewpoint | 53°F (12°C) |
| Visibility | 10.00 mi |
| Last update | 15 Jun 5:53 am CDT |
Extended Forecast for
Charleston IL
Today
High: 73 °F
Sunny
Tonight
Low: 55 °F
Mostly Clear
Tuesday
High: 76 °F
Slight Chance
T-storms then
Showers
LikelyTuesday Night
Low: 56 °F
Chance
Showers then
Partly CloudyWednesday
High: 81 °F
Mostly Sunny
then Chance
T-stormsWednesday Night
Low: 67 °F
Heavy Rain
and Breezy
then Heavy
RainThursday
High: 76 °F
Partly Sunny
Thursday Night
Low: 57 °F
Partly Cloudy
Juneteenth
High: 77 °F
Sunny
Detailed Forecast
Today
Sunny, with a high near 73. Calm wind becoming west northwest around 6 mph in the afternoon.
Tonight
Mostly clear, with a low around 55. Light and variable wind becoming south southwest around 6 mph after midnight.
Tuesday
A chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 3pm, then a chance of showers and thunderstorms after 3pm. Sunny during the morning, then mostly cloudy during the afternoon, with a high near 76. South southwest wind 7 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A 30 percent chance of showers before 7pm. Partly cloudy, with a low around 56. West southwest wind 5 to 10 mph becoming light west in the evening. Winds could gust as high as 20 mph.
Wednesday
A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 81. Light south wind increasing to 13 to 18 mph in the morning. Winds could gust as high as 31 mph.
Wednesday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers. Some of the storms could produce heavy rainfall. Low around 67. Breezy, with a west southwest wind 15 to 23 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Thursday
Partly sunny, with a high near 76. West wind 10 to 14 mph, with gusts as high as 23 mph.
Thursday Night
Partly cloudy, with a low around 57.
Juneteenth
Sunny, with a high near 77.
Friday Night
Mostly clear, with a low around 58.
Saturday
Mostly sunny, with a high near 80.
Saturday Night
A chance of showers. Partly cloudy, with a low around 63.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 80.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Charleston IL
39.5°N 88.19°W (Elev. 650 ft)
39.5°N 88.19°W (Elev. 650 ft)
1:26 am CDT Jun 15, 2026
6am CDT Jun 15, 2026-6pm CDT Jun 21, 2026
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