Current conditions at

Mattoon / Charleston, Coles County Memorial Airport (KMTO)

Lat: 39.48°NLon: 88.28°WElev: 722ft.

Fair

69°F

21°C

Humidity 81%
Wind Speed SE 6 mph
Barometer 30.07 in (1017.9 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 29 Aug 9:53 pm CDT
Extended Forecast for

Charleston IL

  • Tonight

    Tonight: Partly cloudy, with a low around 66. South wind 3 to 6 mph.

    Low: 66 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 91. South wind 6 to 10 mph, with gusts as high as 18 mph.

    High: 91 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 71. South wind 5 to 7 mph.

    Low: 71 °F

    Partly Cloudy

  • Monday

    Monday: Sunny and hot, with a high near 95. South southwest wind 7 to 10 mph, with gusts as high as 18 mph.

    High: 95 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 75. South southwest wind around 6 mph.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 97. Southwest wind 6 to 8 mph.

    High: 97 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 77. South southwest wind around 6 mph.

    Low: 77 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 98.

    High: 98 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 66. South wind 3 to 6 mph.
Sunday
Mostly sunny, with a high near 91. South wind 6 to 10 mph, with gusts as high as 18 mph.
Sunday Night
Partly cloudy, with a low around 71. South wind 5 to 7 mph.
Monday
Sunny and hot, with a high near 95. South southwest wind 7 to 10 mph, with gusts as high as 18 mph.
Monday Night
Mostly clear, with a low around 75. South southwest wind around 6 mph.
Tuesday
Sunny and hot, with a high near 97. Southwest wind 6 to 8 mph.
Tuesday Night
Mostly clear, with a low around 77. South southwest wind around 6 mph.
Wednesday
Sunny and hot, with a high near 98.
Wednesday Night
Mostly clear, with a low around 76.
Thursday
Sunny and hot, with a high near 95.
Thursday Night
Partly cloudy, with a low around 72.
Friday
Mostly sunny, with a high near 92.
Friday Night
Partly cloudy, with a low around 70.
Saturday
Mostly sunny, with a high near 90.
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ABOUT THIS FORECAST

 
Point Forecast:
Charleston IL
 39.48°N 88.19°W (Elev. 650 ft)
9:36 pm CDT Aug 29, 2026
10pm CDT Aug 29, 2026-6pm CDT Sep 5, 2026
 
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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