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

Mattoon / Charleston, Coles County Memorial Airport (KMTO)

Lat: 39.48°NLon: 88.28°WElev: 722ft.

Fair

52°F

11°C

Humidity 66%
Wind Speed S 10 mph
Barometer 29.94 in (1014.2 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 7 Jan 3:53 pm CST
Extended Forecast for

Charleston IL

  • Tonight

    Tonight: Patchy fog after 5am. Otherwise, increasing clouds, with a low around 41. South wind 7 to 10 mph, with gusts as high as 20 mph.

    Low: 41 °F

    Mostly Clear
    then Patchy
    Fog

  • Thursday

    Thursday: Showers likely, mainly after noon. Patchy fog before 10am. Otherwise, cloudy, with a high near 63. Breezy, with a south southeast wind 10 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 63 °F

    Chance
    Showers and
    Patchy Fog
    then Showers
    Likely and
    Breezy

  • Thursday Night

    Thursday Night: Rain and possibly a thunderstorm before 3am, then rain likely. Low around 54. Breezy, with a south southwest wind 14 to 21 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 54 °F

    Rain and
    Breezy then
    Rain Likely

  • Friday

    Friday: Partly sunny, with a temperature falling to around 50 by 5pm. Southwest wind 7 to 13 mph becoming north northwest in the afternoon. Winds could gust as high as 25 mph.

    High: 60 °F⇓

    Partly Sunny

  • Friday Night

    Friday Night: A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 39. North northeast wind 5 to 7 mph.

    Low: 39 °F

    Mostly Cloudy
    then Chance
    Rain

  • Saturday

    Saturday: A 40 percent chance of rain before noon. Mostly cloudy, with a high near 44. West wind 8 to 16 mph, with gusts as high as 25 mph.

    High: 44 °F

    Chance Rain
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 22. West wind 13 to 16 mph, with gusts as high as 25 mph.

    Low: 22 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 31.

    High: 31 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 20.

    Low: 20 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog after 5am. Otherwise, increasing clouds, with a low around 41. South wind 7 to 10 mph, with gusts as high as 20 mph.
Thursday
Showers likely, mainly after noon. Patchy fog before 10am. Otherwise, cloudy, with a high near 63. Breezy, with a south southeast wind 10 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Rain and possibly a thunderstorm before 3am, then rain likely. Low around 54. Breezy, with a south southwest wind 14 to 21 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Friday
Partly sunny, with a temperature falling to around 50 by 5pm. Southwest wind 7 to 13 mph becoming north northwest in the afternoon. Winds could gust as high as 25 mph.
Friday Night
A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 39. North northeast wind 5 to 7 mph.
Saturday
A 40 percent chance of rain before noon. Mostly cloudy, with a high near 44. West wind 8 to 16 mph, with gusts as high as 25 mph.
Saturday Night
Mostly cloudy, with a low around 22. West wind 13 to 16 mph, with gusts as high as 25 mph.
Sunday
Partly sunny, with a high near 31.
Sunday Night
Mostly clear, with a low around 20.
Monday
Sunny, with a high near 40.
Monday Night
Partly cloudy, with a low around 29.
Tuesday
Partly sunny, with a high near 45.
Tuesday Night
Mostly cloudy, with a low around 32.
Wednesday
A chance of rain. Mostly cloudy, with a high near 40.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Charleston IL
 39.5°N 88.19°W (Elev. 650 ft)
Last Update:
3:36 pm CST Jan 7, 2026
Forecast Valid:
4pm CST Jan 7, 2026-6pm CST Jan 14, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation