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

-2°F

-19°C

Humidity 83%
Wind Speed W 13 mph
Barometer 30.42 in (1031.7 mb)
Dewpoint -6°F (-21°C)
Visibility 10.00 mi
Wind Chill-21°F (-29°C)
Last update 14 Dec 12:53 am CST
Extended Forecast for

4 Miles WSW Casey IL

Cold Weather Advisory until December 14, 12:00pm
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory until December 14, 12:00pm

    NOW until 12:00pm Sun

    Cold Weather Advisory

  • Overnight

    Low: -2 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and cold, with a high near 7. Wind chill values between -10 and -20. Northwest wind 6 to 13 mph, with gusts as high as 22 mph.

    High: 7 °F

    Cold

  • Sunday Night

    Sunday Night: Mostly clear, with a low around -3. Wind chill values between -6 and -11. Calm wind becoming south 5 to 8 mph after midnight.

    Low: -3 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 28. Wind chill values between -10 and zero. South southwest wind 9 to 15 mph, with gusts as high as 22 mph.

    High: 28 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 18. South southwest wind 6 to 8 mph.

    Low: 18 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 38. South wind 6 to 10 mph, with gusts as high as 17 mph.

    High: 38 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 31. Southwest wind 9 to 11 mph, with gusts as high as 20 mph.

    Low: 31 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny

Detailed Forecast

Overnight
Mostly clear, with a low around -2. Wind chill values between -14 and -19. Northwest wind around 13 mph, with gusts as high as 24 mph.
Sunday
Sunny and cold, with a high near 7. Wind chill values between -10 and -20. Northwest wind 6 to 13 mph, with gusts as high as 22 mph.
Sunday Night
Mostly clear, with a low around -3. Wind chill values between -6 and -11. Calm wind becoming south 5 to 8 mph after midnight.
Monday
Sunny, with a high near 28. Wind chill values between -10 and zero. South southwest wind 9 to 15 mph, with gusts as high as 22 mph.
Monday Night
Partly cloudy, with a low around 18. South southwest wind 6 to 8 mph.
Tuesday
Mostly sunny, with a high near 38. South wind 6 to 10 mph, with gusts as high as 17 mph.
Tuesday Night
Mostly cloudy, with a low around 31. Southwest wind 9 to 11 mph, with gusts as high as 20 mph.
Wednesday
Partly sunny, with a high near 43.
Wednesday Night
A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 36. Breezy.
Thursday
Rain likely, mainly before noon. Mostly cloudy, with a high near 53. Breezy. Chance of precipitation is 70%.
Thursday Night
Partly cloudy, with a low around 21.
Friday
Mostly sunny, with a high near 36.
Friday Night
Mostly cloudy, with a low around 28.
Saturday
A chance of rain. Mostly cloudy, with a high near 51.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Casey IL
 39.28°N 88.06°W (Elev. 600 ft)
Last Update:
12:36 am CST Dec 14, 2025
Forecast Valid:
1am CST Dec 14, 2025-6pm CST Dec 20, 2025
 
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