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

62°F

17°C

Humidity 78%
Wind Speed Calm
Barometer 30.08 in (1018.2 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 24 May 11:53 pm CDT
Extended Forecast for

4 Miles ENE Charleston IL

  • Overnight

    Overnight: Patchy fog after 3am. Otherwise, mostly clear, with a low around 55. Light east northeast wind.

    Low: 55 °F

    Patchy Fog

  • Memorial Day

    Memorial Day: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 78. Calm wind becoming east 5 to 7 mph in the morning.

    High: 78 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 57. Light east wind.

    Low: 57 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 80. East southeast wind 3 to 6 mph.

    High: 80 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 63. Light east southeast wind. Chance of precipitation is 50%.

    Low: 63 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 80. Light east southeast wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 63. Calm wind.

    Low: 63 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 63.

    Low: 63 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Patchy fog after 3am. Otherwise, mostly clear, with a low around 55. Light east northeast wind.
Memorial Day
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 78. Calm wind becoming east 5 to 7 mph in the morning.
Monday Night
Partly cloudy, with a low around 57. Light east wind.
Tuesday
Partly sunny, with a high near 80. East southeast wind 3 to 6 mph.
Tuesday Night
A chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 63. Light east southeast wind. Chance of precipitation is 50%.
Wednesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 80. Light east southeast wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Partly cloudy, with a low around 63. Calm wind.
Thursday
Mostly sunny, with a high near 82.
Thursday Night
Mostly cloudy, with a low around 63.
Friday
Partly sunny, with a high near 78.
Friday Night
A chance of showers. Mostly cloudy, with a low around 61.
Saturday
A chance of showers. Partly sunny, with a high near 75.
Saturday Night
Partly cloudy, with a low around 58.
Sunday
Mostly sunny, with a high near 74.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE Charleston IL
 39.52°N 88.1°W (Elev. 663 ft)
Last Update:
7:51 pm CDT May 24, 2026
Forecast Valid:
12am CDT May 25, 2026-6pm CDT May 31, 2026
 
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