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

66°F

19°C

Humidity 93%
Wind Speed SE 6 mph
Barometer 30.04 in (1016.9 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 4 Aug 6:53 am CDT
Extended Forecast for

3 Miles NW Casey IL

  • Today

    Today: Patchy fog before 9am. Otherwise, sunny, with a high near 84. South southeast wind around 5 mph becoming calm in the morning.

    High: 84 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 64. Light east southeast wind.

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 86. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 86 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers after 1am. Partly cloudy, with a low around 67. South southeast wind 3 to 5 mph.

    Low: 67 °F

    Mostly Clear
    then Chance
    Showers

  • Thursday

    Thursday: Showers likely, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 83. South southwest wind 3 to 8 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Light south wind. Chance of precipitation is 40%.

    Low: 67 °F

    Chance
    T-storms

  • Friday

    Friday: Partly sunny, with a high near 83. Calm wind becoming west southwest around 6 mph in the morning.

    High: 83 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

Detailed Forecast

Today
Patchy fog before 9am. Otherwise, sunny, with a high near 84. South southeast wind around 5 mph becoming calm in the morning.
Tonight
Mostly clear, with a low around 64. Light east southeast wind.
Wednesday
Sunny, with a high near 86. Calm wind becoming south southwest around 5 mph in the afternoon.
Wednesday Night
A 30 percent chance of showers after 1am. Partly cloudy, with a low around 67. South southeast wind 3 to 5 mph.
Thursday
Showers likely, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 83. South southwest wind 3 to 8 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Light south wind. Chance of precipitation is 40%.
Friday
Partly sunny, with a high near 83. Calm wind becoming west southwest around 6 mph in the morning.
Friday Night
Partly cloudy, with a low around 67.
Saturday
Mostly sunny, with a high near 85.
Saturday Night
Mostly clear, with a low around 69.
Sunday
Sunny, with a high near 87.
Sunday Night
Mostly clear, with a low around 71.
Monday
Mostly sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Casey IL
 39.32°N 88.03°W (Elev. 600 ft)
Last Update:
6:36 am CDT Aug 4, 2026
Forecast Valid:
7am CDT Aug 4, 2026-6pm CDT Aug 10, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation