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

47°F

8°C

Humidity 77%
Wind Speed SE 9 mph
Barometer 29.94 in (1014.2 mb)
Dewpoint 40°F (4°C)
Visibility NA
Wind Chill43°F (6°C)
Last update 7 Jan 5:53 pm CST
Extended Forecast for

Casey IL

  • Tonight

    Tonight: Increasing clouds, with a low around 40. South southeast wind 7 to 9 mph, with gusts as high as 20 mph.

    Low: 40 °F

    Increasing
    Clouds

  • Thursday

    Thursday: A 50 percent chance of showers after 3pm. Cloudy, with a high near 63. Breezy, with a south southeast wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 34 mph.

    High: 63 °F

    Chance
    Showers and
    Breezy

  • Thursday Night

    Thursday Night: Rain and possibly a thunderstorm. Low around 56. Breezy, with a south southwest wind 16 to 22 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 56 °F

    Rain and
    Breezy

  • Friday

    Friday: Partly sunny, with a temperature falling to around 51 by 5pm. Southwest wind 7 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 25 mph.

    High: 61 °F⇓

    Partly Sunny

  • Friday Night

    Friday Night: A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 41. North northeast wind 6 to 8 mph.

    Low: 41 °F

    Mostly Cloudy
    then Chance
    Rain

  • Saturday

    Saturday: A 40 percent chance of rain before noon. Mostly cloudy, with a high near 46. West wind 9 to 18 mph, with gusts as high as 25 mph.

    High: 46 °F

    Chance Rain
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 22. West wind 14 to 17 mph, with gusts as high as 25 mph.

    Low: 22 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 32.

    High: 32 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 20.

    Low: 20 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 40. South southeast wind 7 to 9 mph, with gusts as high as 20 mph.
Thursday
A 50 percent chance of showers after 3pm. Cloudy, with a high near 63. Breezy, with a south southeast wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 34 mph.
Thursday Night
Rain and possibly a thunderstorm. Low around 56. Breezy, with a south southwest wind 16 to 22 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Friday
Partly sunny, with a temperature falling to around 51 by 5pm. Southwest wind 7 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 25 mph.
Friday Night
A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 41. North northeast wind 6 to 8 mph.
Saturday
A 40 percent chance of rain before noon. Mostly cloudy, with a high near 46. West wind 9 to 18 mph, with gusts as high as 25 mph.
Saturday Night
Mostly cloudy, with a low around 22. West wind 14 to 17 mph, with gusts as high as 25 mph.
Sunday
Partly sunny, with a high near 32.
Sunday Night
Mostly clear, with a low around 20.
Monday
Sunny, with a high near 40.
Monday Night
Partly cloudy, with a low around 29.
Tuesday
Mostly sunny, with a high near 46.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
A chance of rain. Mostly cloudy, with a high near 41.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Casey IL
 39.3°N 88°W (Elev. 643 ft)
Last Update:
6:36 pm CST Jan 7, 2026
Forecast Valid:
6pm CST Jan 7, 2026-6pm CST Jan 14, 2026
 
Forecast Discussion
 
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Additional Resources

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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