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

44°F

7°C

Humidity 71%
Wind Speed SW 7 mph
Barometer 30.24 in (1024.3 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 6 Apr 1:53 am CDT
Extended Forecast for

Casey IL

  • Overnight

    Overnight: Clear, with a low around 38. West southwest wind around 7 mph, with gusts as high as 16 mph.

    Low: 38 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 58. Northwest wind 9 to 16 mph, with gusts as high as 25 mph.

    High: 58 °F

    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 35. North wind 7 to 10 mph, with gusts as high as 18 mph.

    Low: 35 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Cloudy, then gradually becoming mostly sunny, with a high near 48. East northeast wind 8 to 10 mph, with gusts as high as 18 mph.

    High: 48 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 36. East wind 6 to 9 mph, with gusts as high as 17 mph.

    Low: 36 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 67. South southeast wind 10 to 16 mph, with gusts as high as 24 mph.

    High: 67 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 52. South southeast wind 10 to 14 mph, with gusts as high as 24 mph.

    Low: 52 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 55. Chance of precipitation is 40%.

    Low: 55 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Overnight
Clear, with a low around 38. West southwest wind around 7 mph, with gusts as high as 16 mph.
Monday
Sunny, with a high near 58. Northwest wind 9 to 16 mph, with gusts as high as 25 mph.
Monday Night
Increasing clouds, with a low around 35. North wind 7 to 10 mph, with gusts as high as 18 mph.
Tuesday
Cloudy, then gradually becoming mostly sunny, with a high near 48. East northeast wind 8 to 10 mph, with gusts as high as 18 mph.
Tuesday Night
Partly cloudy, with a low around 36. East wind 6 to 9 mph, with gusts as high as 17 mph.
Wednesday
Partly sunny, with a high near 67. South southeast wind 10 to 16 mph, with gusts as high as 24 mph.
Wednesday Night
Partly cloudy, with a low around 52. South southeast wind 10 to 14 mph, with gusts as high as 24 mph.
Thursday
Mostly sunny, with a high near 68.
Thursday Night
A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 55. Chance of precipitation is 40%.
Friday
A 50 percent chance of showers. Mostly cloudy, with a high near 70.
Friday Night
A chance of showers. Mostly cloudy, with a low around 53.
Saturday
A chance of showers. Partly sunny, with a high near 74.
Saturday Night
Partly cloudy, with a low around 59.
Sunday
Partly sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Casey IL
 39.3°N 88°W (Elev. 643 ft)
Last Update:
1:26 am CDT Apr 6, 2026
Forecast Valid:
2am CDT Apr 6, 2026-6pm CDT Apr 12, 2026
 
Forecast Discussion
 
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Additional Resources

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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