National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Mattoon / Charleston, Coles County Memorial Airport (KMTO)

Lat: 39.48°NLon: 88.28°WElev: 722ft.

Overcast

73°F

23°C

Humidity 74%
Wind Speed NE 7 mph
Barometer 29.95 in (1013.7 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 24 Sep 2:53 pm CDT
Extended Forecast for

Charleston IL

  • This Afternoon

    This Afternoon: A slight chance of showers, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 78. North northeast wind 8 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 20%.

    High: 78 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and midnight. Mostly cloudy, with a low around 57. North northeast wind around 9 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.

    Low: 57 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 76. North wind 8 to 10 mph, with gusts as high as 15 mph.

    High: 76 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 49. Northwest wind around 5 mph becoming calm in the evening.

    Low: 49 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 79. Light north wind.

    High: 79 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 52. Calm wind.

    Low: 52 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 82. Calm wind.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 54.

    Low: 54 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

Detailed Forecast

This Afternoon
A slight chance of showers, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 78. North northeast wind 8 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 20%.
Tonight
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and midnight. Mostly cloudy, with a low around 57. North northeast wind around 9 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 76. North wind 8 to 10 mph, with gusts as high as 15 mph.
Thursday Night
Mostly clear, with a low around 49. Northwest wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 79. Light north wind.
Friday Night
Clear, with a low around 52. Calm wind.
Saturday
Sunny, with a high near 82. Calm wind.
Saturday Night
Clear, with a low around 54.
Sunday
Sunny, with a high near 85.
Sunday Night
Mostly clear, with a low around 55.
Monday
Sunny, with a high near 85.
Monday Night
Mostly clear, with a low around 57.
Tuesday
Mostly sunny, with a high near 83.
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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:
1:55 pm CDT Sep 24, 2025
Forecast Valid:
3pm CDT Sep 24, 2025-6pm CDT Sep 30, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation