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

35°F

2°C

Humidity 59%
Wind Speed S 13 mph
Barometer 29.92 in (1013.7 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 5 Jan 2:53 am CST
Extended Forecast for

Casey IL

  • Overnight

    Overnight: Mostly clear, with a low around 30. South wind around 10 mph, with gusts as high as 18 mph.

    Low: 30 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 51. South southwest wind 8 to 11 mph, with gusts as high as 17 mph.

    High: 51 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 41. South wind 8 to 14 mph, with gusts as high as 23 mph.

    Low: 41 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 57. South southwest wind 10 to 17 mph becoming west in the afternoon. Winds could gust as high as 24 mph.

    High: 57 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 34. West northwest wind 3 to 8 mph. Winds could gust as high as 15 mph.

    Low: 34 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 55. Light and variable wind becoming south southwest 5 to 9 mph in the morning.

    High: 55 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 43. South wind 7 to 10 mph, with gusts as high as 17 mph.

    Low: 43 °F

    Partly Cloudy

  • Thursday

    Thursday: Rain likely, mainly after noon. Mostly cloudy, with a high near 59. Chance of precipitation is 70%.

    High: 59 °F

    Rain Likely

  • Thursday Night

    Thursday Night: Rain. Low around 51. Chance of precipitation is 80%.

    Low: 51 °F

    Rain

Detailed Forecast

Overnight
Mostly clear, with a low around 30. South wind around 10 mph, with gusts as high as 18 mph.
Monday
Mostly sunny, with a high near 51. South southwest wind 8 to 11 mph, with gusts as high as 17 mph.
Monday Night
Mostly cloudy, with a low around 41. South wind 8 to 14 mph, with gusts as high as 23 mph.
Tuesday
Partly sunny, with a high near 57. South southwest wind 10 to 17 mph becoming west in the afternoon. Winds could gust as high as 24 mph.
Tuesday Night
Partly cloudy, with a low around 34. West northwest wind 3 to 8 mph. Winds could gust as high as 15 mph.
Wednesday
Sunny, with a high near 55. Light and variable wind becoming south southwest 5 to 9 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 43. South wind 7 to 10 mph, with gusts as high as 17 mph.
Thursday
Rain likely, mainly after noon. Mostly cloudy, with a high near 59. Chance of precipitation is 70%.
Thursday Night
Rain. Low around 51. Chance of precipitation is 80%.
Friday
Rain likely, mainly after noon. Partly sunny, with a high near 61. Chance of precipitation is 60%.
Friday Night
A chance of rain. Mostly cloudy, with a low around 35.
Saturday
Mostly sunny, with a high near 42. Breezy.
Saturday Night
Mostly cloudy, with a low around 24.
Sunday
Mostly sunny, with a high near 35.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Casey IL
 39.3°N 88°W (Elev. 643 ft)
Last Update:
3:24 am CST Jan 5, 2026
Forecast Valid:
3am CST Jan 5, 2026-6pm CST Jan 11, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation