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

46°F

8°C

Humidity 73%
Wind Speed Calm
Barometer 30.08 in (1018.4 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 14 May 2:53 am CDT
Extended Forecast for

5 Miles SW Casey IL

  • Overnight

    Overnight: Clear, with a low around 43. Light north wind.

    Low: 43 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 70. Calm wind becoming north northeast around 5 mph.

    High: 70 °F

    Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers between 4am and 5am. Increasing clouds, with a low around 50. Calm wind becoming south southeast 5 to 8 mph in the evening. Winds could gust as high as 15 mph. Chance of precipitation is 10%.

    Low: 50 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Friday

    Friday: A 50 percent chance of showers between 9am and 11am. Cloudy, then gradually becoming mostly sunny, with a high near 76. South southeast wind 10 to 16 mph, with gusts as high as 24 mph.

    High: 76 °F

    Chance
    Showers then
    Partly Sunny

  • Friday Night

    Friday Night: A 40 percent chance of showers after 1am. Mostly cloudy, with a low around 63. South southeast wind 9 to 11 mph, with gusts as high as 20 mph.

    Low: 63 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: Showers likely, with thunderstorms also possible after 1pm. Partly sunny, with a high near 81. Southwest wind 11 to 15 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.

    High: 81 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 65. South wind 6 to 8 mph, with gusts as high as 18 mph. Chance of precipitation is 50%.

    Low: 65 °F

    Chance
    T-storms

  • Sunday

    Sunday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a low around 43. Light north wind.
Thursday
Sunny, with a high near 70. Calm wind becoming north northeast around 5 mph.
Thursday Night
A slight chance of showers between 4am and 5am. Increasing clouds, with a low around 50. Calm wind becoming south southeast 5 to 8 mph in the evening. Winds could gust as high as 15 mph. Chance of precipitation is 10%.
Friday
A 50 percent chance of showers between 9am and 11am. Cloudy, then gradually becoming mostly sunny, with a high near 76. South southeast wind 10 to 16 mph, with gusts as high as 24 mph.
Friday Night
A 40 percent chance of showers after 1am. Mostly cloudy, with a low around 63. South southeast wind 9 to 11 mph, with gusts as high as 20 mph.
Saturday
Showers likely, with thunderstorms also possible after 1pm. Partly sunny, with a high near 81. Southwest wind 11 to 15 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 Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 65. South wind 6 to 8 mph, with gusts as high as 18 mph. Chance of precipitation is 50%.
Sunday
Mostly sunny, with a high near 87.
Sunday Night
Mostly clear, with a low around 68.
Monday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87. Breezy.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 71.
Tuesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 82. Breezy.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 64.
Wednesday
A chance of showers. Mostly cloudy, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW Casey IL
 39.26°N 88.06°W (Elev. 607 ft)
Last Update:
1:26 am CDT May 14, 2026
Forecast Valid:
2am CDT May 14, 2026-6pm CDT May 20, 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