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.

Rain Fog/Mist

69°F

21°C

Humidity 96%
Wind Speed NE 5 mph
Barometer 29.67 in (1004.0 mb)
Dewpoint 68°F (20°C)
Visibility 5.00 mi
Last update 1 Aug 10:53 pm CDT
Extended Forecast for

Casey ILSimilar City Names

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm. Cloudy, with a low around 65. Calm wind becoming north around 6 mph after midnight. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 65 °F

    Showers
    Likely

  • Sunday

    Sunday: A chance of showers and thunderstorms. Cloudy, then gradually becoming mostly sunny, with a high near 77. North wind 11 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.

    High: 77 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 64. North wind 8 to 15 mph, with gusts as high as 23 mph.

    Low: 64 °F

    Partly Cloudy

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 79. North northeast wind around 9 mph.

    High: 79 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Mostly clear, with a low around 63. Northeast wind 3 to 7 mph.

    Low: 63 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 81. North northeast wind 3 to 5 mph.

    High: 81 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 64. Calm wind.

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers after 1am. Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

Tonight
Showers likely and possibly a thunderstorm. Cloudy, with a low around 65. Calm wind becoming north around 6 mph after midnight. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers and thunderstorms. Cloudy, then gradually becoming mostly sunny, with a high near 77. North wind 11 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.
Sunday Night
Partly cloudy, with a low around 64. North wind 8 to 15 mph, with gusts as high as 23 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 79. North northeast wind around 9 mph.
Monday Night
Mostly clear, with a low around 63. Northeast wind 3 to 7 mph.
Tuesday
Sunny, with a high near 81. North northeast wind 3 to 5 mph.
Tuesday Night
Mostly clear, with a low around 64. Calm wind.
Wednesday
Sunny, with a high near 83.
Wednesday Night
A 30 percent chance of showers after 1am. Partly cloudy, with a low around 66.
Thursday
A 40 percent chance of showers before 1pm. Mostly sunny, with a high near 82.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 84.
Friday Night
Partly cloudy, with a low around 70.
Saturday
Sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
Casey ILSimilar City Names
 39.3°N 88°W (Elev. 643 ft)
Last Update:
8:36 pm CDT Aug 1, 2026
Forecast Valid:
11pm CDT Aug 1, 2026-6pm CDT Aug 8, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation