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

58°F

14°C

Humidity 90%
Wind Speed N 3 mph
Barometer 30.17 in (1021.3 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 3 Aug 1:53 am CDT
Extended Forecast for

Casey ILSimilar City Names

  • Overnight

    Overnight: Mostly clear, with a low around 57. Northeast wind around 7 mph.

    Low: 57 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 81. East northeast wind 7 to 10 mph.

    High: 81 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 63. Northeast wind around 7 mph.

    Low: 63 °F

    Mostly Cloudy

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 80. East wind 6 to 8 mph.

    High: 80 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 65. East wind around 5 mph becoming calm in the evening.

    Low: 65 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 82. Southeast wind 3 to 6 mph.

    High: 82 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 66. Light east southeast wind.

    Low: 66 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 57. Northeast wind around 7 mph.
Sunday
Sunny, with a high near 81. East northeast wind 7 to 10 mph.
Sunday Night
Mostly cloudy, with a low around 63. Northeast wind around 7 mph.
Monday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 80. East wind 6 to 8 mph.
Monday Night
Mostly cloudy, with a low around 65. East wind around 5 mph becoming calm in the evening.
Tuesday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 82. Southeast wind 3 to 6 mph.
Tuesday Night
Partly cloudy, with a low around 66. Light east southeast wind.
Wednesday
Mostly sunny, with a high near 84.
Wednesday Night
Mostly clear, with a low around 67.
Thursday
Sunny, with a high near 85.
Thursday Night
Mostly clear, with a low around 67.
Friday
Sunny, with a high near 86.
Friday Night
Mostly clear, with a low around 70.
Saturday
Sunny, with a high near 88.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Casey ILSimilar City Names
 39.3°N 88°W (Elev. 643 ft)
Last Update:
1:40 am CDT Aug 3, 2025
Forecast Valid:
2am CDT Aug 3, 2025-6pm CDT Aug 9, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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