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.

Fair

76°F

24°C

Humidity 56%
Wind Speed S 6 mph
Barometer 30.20 in (1022.1 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 4 Oct 9:53 am CDT
Extended Forecast for

Charleston IL

  • Today

    Today: Mostly sunny, with a high near 87. South wind 6 to 9 mph.

    High: 87 °F

    Mostly Sunny

  • Tonight

    Tonight: Clear, with a low around 57. South wind around 6 mph.

    Low: 57 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 86. South wind 5 to 13 mph, with gusts as high as 22 mph.

    High: 86 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 62. South wind 6 to 8 mph.

    Low: 62 °F

    Mostly Clear

  • Monday

    Monday: A 40 percent chance of showers. Mostly sunny, with a high near 85. South wind 5 to 8 mph.

    High: 85 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 62. South wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Chance
    Showers then
    Showers
    Likely

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 76. Light and variable wind becoming north northwest 5 to 9 mph in the morning. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 76 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 87. South wind 6 to 9 mph.
Tonight
Clear, with a low around 57. South wind around 6 mph.
Sunday
Sunny, with a high near 86. South wind 5 to 13 mph, with gusts as high as 22 mph.
Sunday Night
Mostly clear, with a low around 62. South wind 6 to 8 mph.
Monday
A 40 percent chance of showers. Mostly sunny, with a high near 85. South wind 5 to 8 mph.
Monday Night
A chance of showers, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 62. South wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 76. Light and variable wind becoming north northwest 5 to 9 mph in the morning. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Partly cloudy, with a low around 50.
Wednesday
Sunny, with a high near 70.
Wednesday Night
Mostly clear, with a low around 43.
Thursday
Sunny, with a high near 71.
Thursday Night
Mostly clear, with a low around 44.
Friday
Sunny, with a high near 73.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Charleston IL
 39.48°N 88.16°W (Elev. 699 ft)
Last Update:
9:16 am CDT Oct 4, 2025
Forecast Valid:
10am CDT Oct 4, 2025-6pm CDT Oct 10, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation