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

65°F

18°C

Humidity 81%
Wind Speed SE 3 mph
Barometer 30.17 in (1021.2 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 23 Jun 10:53 pm CDT
Extended Forecast for

Casey IL

  • Tonight

    Tonight: Partly cloudy, with a low around 58. Calm wind.

    Low: 58 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 80. Calm wind becoming south southwest 5 to 8 mph in the morning.

    High: 80 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 64. South wind 5 to 7 mph. Chance of precipitation is 30%.

    Low: 64 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers before 7am, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 83. Southwest wind 3 to 6 mph. Chance of precipitation is 50%.

    High: 83 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm, then showers after 1am. Low around 66. Light and variable wind. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

    Low: 66 °F

    Showers
    Likely then
    Showers

  • Friday

    Friday: Showers, with thunderstorms also possible after 1pm. High near 79. Southeast wind 6 to 8 mph becoming west southwest in the afternoon. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.

    High: 79 °F

    Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 69. Southwest wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 69 °F

    Showers
    Likely

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84.

    High: 84 °F

    Partly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 71. Chance of precipitation is 40%.

    Low: 71 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Partly cloudy, with a low around 58. Calm wind.
Wednesday
Mostly sunny, with a high near 80. Calm wind becoming south southwest 5 to 8 mph in the morning.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 64. South wind 5 to 7 mph. Chance of precipitation is 30%.
Thursday
A chance of showers before 7am, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 83. Southwest wind 3 to 6 mph. Chance of precipitation is 50%.
Thursday Night
Showers likely and possibly a thunderstorm, then showers after 1am. Low around 66. Light and variable wind. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Friday
Showers, with thunderstorms also possible after 1pm. High near 79. Southeast wind 6 to 8 mph becoming west southwest in the afternoon. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.
Friday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 69. Southwest wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 71. Chance of precipitation is 40%.
Sunday
Mostly sunny, with a high near 90.
Sunday Night
Mostly clear, with a low around 74.
Monday
Sunny, with a high near 92.
Monday Night
Mostly clear, with a low around 76.
Tuesday
Sunny, with a high near 93.
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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:
11:21 pm CDT Jun 23, 2026
Forecast Valid:
11pm CDT Jun 23, 2026-6pm CDT Jun 30, 2026
 
Forecast Discussion
 
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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