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Current conditions at

Mattoon / Charleston, Coles County Memorial Airport (KMTO)

Lat: 39.48°NLon: 88.28°WElev: 722ft.

Fair

63°F

17°C

Humidity 78%
Wind Speed NE 6 mph
Barometer 30.02 in (1016.3 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 11 Oct 8:53 am CDT
Extended Forecast for

Charleston IL

  • Today

    Today: Sunny, with a high near 83. North northwest wind 3 to 6 mph.

    High: 83 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 58. Calm wind becoming south around 5 mph after midnight.

    Low: 58 °F

    Increasing
    Clouds

  • Columbus Day

    Columbus Day: Mostly sunny, with a high near 91. Southwest wind 5 to 11 mph, with gusts as high as 18 mph.

    High: 91 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Clear, with a low around 69. Southwest wind 7 to 9 mph, with gusts as high as 17 mph.

    Low: 69 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 91. West southwest wind 9 to 11 mph, with gusts as high as 18 mph.

    High: 91 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 66. Light and variable wind becoming north northeast around 5 mph after midnight.

    Low: 66 °F

    Mostly Clear
    then Chance
    T-storms

  • Wednesday

    Wednesday: Showers likely. Mostly cloudy, with a high near 81. North northeast wind 6 to 8 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 81 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 60.

    Low: 60 °F

    Chance
    Showers

  • Thursday

    Thursday: Showers likely. Mostly cloudy, with a high near 76. Chance of precipitation is 60%.

    High: 76 °F

    Showers
    Likely

Detailed Forecast

Today
Sunny, with a high near 83. North northwest wind 3 to 6 mph.
Tonight
Increasing clouds, with a low around 58. Calm wind becoming south around 5 mph after midnight.
Columbus Day
Mostly sunny, with a high near 91. Southwest wind 5 to 11 mph, with gusts as high as 18 mph.
Monday Night
Clear, with a low around 69. Southwest wind 7 to 9 mph, with gusts as high as 17 mph.
Tuesday
Sunny, with a high near 91. West southwest wind 9 to 11 mph, with gusts as high as 18 mph.
Tuesday Night
A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 66. Light and variable wind becoming north northeast around 5 mph after midnight.
Wednesday
Showers likely. Mostly cloudy, with a high near 81. North northeast wind 6 to 8 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 60.
Thursday
Showers likely. Mostly cloudy, with a high near 76. Chance of precipitation is 60%.
Thursday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 52.
Friday
Partly sunny, with a high near 67.
Friday Night
Partly cloudy, with a low around 38.
Saturday
Mostly sunny, with a high near 59.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Charleston IL
 39.48°N 88.19°W (Elev. 650 ft)
Last Update:
7:31 am CDT Oct 11, 2026
Forecast Valid:
9am CDT Oct 11, 2026-6pm CDT Oct 17, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation