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

71°F

22°C

Humidity 76%
Wind Speed S 17 G 31 mph
Barometer 29.82 in (1009.2 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 15 Apr 12:53 am CDT
Extended Forecast for

Casey IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 68. Southwest wind 14 to 17 mph, with gusts as high as 31 mph.

    Low: 68 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly between 3pm and 4pm. Mostly cloudy, with a high near 80. South southwest wind 13 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3am. Low around 64. South southwest wind 11 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 64 °F

    Chance
    T-storms then
    Showers

  • Thursday

    Thursday: Showers likely before 10am, then showers likely and possibly a thunderstorm between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 77. Southwest wind 13 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 57. Southwest wind 5 to 8 mph.

    Low: 57 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 83. South wind 5 to 14 mph, with gusts as high as 21 mph.

    High: 83 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of showers before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 58. South wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 58 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers. Mostly cloudy, with a high near 71. Breezy. Chance of precipitation is 60%.

    High: 71 °F

    Showers
    Likely and
    Breezy

  • Saturday Night

    Saturday Night: A 30 percent chance of showers before 1am. Partly cloudy, with a low around 39.

    Low: 39 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly cloudy, with a low around 68. Southwest wind 14 to 17 mph, with gusts as high as 31 mph.
Wednesday
Showers and thunderstorms likely, mainly between 3pm and 4pm. Mostly cloudy, with a high near 80. South southwest wind 13 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3am. Low around 64. South southwest wind 11 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
Showers likely before 10am, then showers likely and possibly a thunderstorm between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 77. Southwest wind 13 to 16 mph, with gusts as high as 28 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
Mostly clear, with a low around 57. Southwest wind 5 to 8 mph.
Friday
Mostly sunny, with a high near 83. South wind 5 to 14 mph, with gusts as high as 21 mph.
Friday Night
A chance of showers before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 58. South wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers. Mostly cloudy, with a high near 71. Breezy. Chance of precipitation is 60%.
Saturday Night
A 30 percent chance of showers before 1am. Partly cloudy, with a low around 39.
Sunday
Sunny, with a high near 57.
Sunday Night
Clear, with a low around 37.
Monday
Sunny, with a high near 64.
Monday Night
Mostly clear, with a low around 47.
Tuesday
Mostly sunny, with a high near 73.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Casey IL
 39.3°N 88°W (Elev. 643 ft)
Last Update:
1:26 am CDT Apr 15, 2026
Forecast Valid:
1am CDT Apr 15, 2026-6pm CDT Apr 21, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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