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.

Overcast

39°F

4°C

Humidity 82%
Wind Speed NW 16 G 29 mph
Barometer 30.07 in (1018.6 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 11 Mar 6:53 pm CDT
Extended Forecast for

Casey IL

  • Tonight

    Tonight: Mostly cloudy during the early evening, then gradual clearing, with a low around 29. Blustery, with a north northwest wind 16 to 21 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 31 mph.

    Low: 29 °F

    Mostly Cloudy
    and Blustery
    then Mostly
    Clear

  • Thursday

    Thursday: Sunny, with a high near 50. West northwest wind 6 to 11 mph, with gusts as high as 16 mph.

    High: 50 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 40. Breezy, with a south wind 9 to 14 mph increasing to 19 to 24 mph after midnight. Winds could gust as high as 37 mph.

    Low: 40 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Friday

    Friday: Partly sunny, with a high near 57. Breezy, with a west wind 18 to 23 mph, with gusts as high as 36 mph.

    High: 57 °F

    Partly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 33. West northwest wind 6 to 9 mph becoming north northeast after midnight. Winds could gust as high as 17 mph.

    Low: 33 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 54. Northeast wind 7 to 10 mph becoming east southeast in the afternoon. Winds could gust as high as 16 mph.

    High: 54 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Cloudy, with a low around 45. East wind 9 to 14 mph, with gusts as high as 24 mph.

    Low: 45 °F

    Cloudy

  • Sunday

    Sunday: Rain likely, mainly after 1pm. Mostly cloudy, with a high near 64. Windy. Chance of precipitation is 70%.

    High: 64 °F

    Chance Rain
    and Breezy
    then Rain
    Likely and
    Windy

  • Sunday Night

    Sunday Night: Rain likely before 1am. Mostly cloudy, with a low around 24. Breezy. Chance of precipitation is 60%.

    Low: 24 °F

    Rain Likely
    and Breezy

Detailed Forecast

Tonight
Mostly cloudy during the early evening, then gradual clearing, with a low around 29. Blustery, with a north northwest wind 16 to 21 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 31 mph.
Thursday
Sunny, with a high near 50. West northwest wind 6 to 11 mph, with gusts as high as 16 mph.
Thursday Night
Mostly cloudy, with a low around 40. Breezy, with a south wind 9 to 14 mph increasing to 19 to 24 mph after midnight. Winds could gust as high as 37 mph.
Friday
Partly sunny, with a high near 57. Breezy, with a west wind 18 to 23 mph, with gusts as high as 36 mph.
Friday Night
Mostly cloudy, with a low around 33. West northwest wind 6 to 9 mph becoming north northeast after midnight. Winds could gust as high as 17 mph.
Saturday
Mostly cloudy, with a high near 54. Northeast wind 7 to 10 mph becoming east southeast in the afternoon. Winds could gust as high as 16 mph.
Saturday Night
Cloudy, with a low around 45. East wind 9 to 14 mph, with gusts as high as 24 mph.
Sunday
Rain likely, mainly after 1pm. Mostly cloudy, with a high near 64. Windy. Chance of precipitation is 70%.
Sunday Night
Rain likely before 1am. Mostly cloudy, with a low around 24. Breezy. Chance of precipitation is 60%.
Monday
Partly sunny, with a high near 31. Blustery.
Monday Night
Partly cloudy, with a low around 14.
Tuesday
Mostly sunny, with a high near 35.
Tuesday Night
Mostly cloudy, with a low around 25.
Wednesday
Mostly cloudy, with a high near 47.
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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:
6:12 pm CDT Mar 11, 2026
Forecast Valid:
7pm CDT Mar 11, 2026-6pm CDT Mar 18, 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