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

69°F

21°C

Humidity 55%
Wind Speed S 7 mph
Barometer 29.94 in (1013.4 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 12 May 8:53 pm CDT
Extended Forecast for

Casey IL

  • Tonight

    Tonight: A chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 3am. Cloudy early, then gradual clearing, with a low around 57. South southwest wind 10 to 15 mph becoming west northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 50%.

    Low: 57 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Sunny, with a high near 69. Northwest wind 11 to 18 mph, with gusts as high as 28 mph.

    High: 69 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 44. North wind 9 to 14 mph becoming light north northeast after midnight. Winds could gust as high as 22 mph.

    Low: 44 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 69. North wind around 5 mph becoming calm in the afternoon.

    High: 69 °F

    Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 52. Light southeast wind becoming south southeast 5 to 10 mph in the evening. Winds could gust as high as 18 mph.

    Low: 52 °F

    Increasing
    Clouds

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 77. South wind 14 to 18 mph, with gusts as high as 28 mph.

    High: 77 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 64. South wind around 10 mph, with gusts as high as 18 mph.

    Low: 64 °F

    Chance
    T-storms

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 40%.

    Low: 65 °F

    Chance
    T-storms

Detailed Forecast

Tonight
A chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 3am. Cloudy early, then gradual clearing, with a low around 57. South southwest wind 10 to 15 mph becoming west northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 50%.
Wednesday
Sunny, with a high near 69. Northwest wind 11 to 18 mph, with gusts as high as 28 mph.
Wednesday Night
Mostly clear, with a low around 44. North wind 9 to 14 mph becoming light north northeast after midnight. Winds could gust as high as 22 mph.
Thursday
Sunny, with a high near 69. North wind around 5 mph becoming calm in the afternoon.
Thursday Night
Increasing clouds, with a low around 52. Light southeast wind becoming south southeast 5 to 10 mph in the evening. Winds could gust as high as 18 mph.
Friday
A 50 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 77. South wind 14 to 18 mph, with gusts as high as 28 mph.
Friday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 64. South wind around 10 mph, with gusts as high as 18 mph.
Saturday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 40%.
Sunday
Mostly sunny, with a high near 85.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Monday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 88. Breezy.
Monday Night
Showers likely. Mostly cloudy, with a low around 69.
Tuesday
Showers likely. Mostly cloudy, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Casey IL
 39.3°N 87.97°W (Elev. 627 ft)
Last Update:
9:36 pm CDT May 12, 2026
Forecast Valid:
9pm CDT May 12, 2026-6pm CDT May 19, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation