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

36°F

2°C

Humidity 73%
Wind Speed S 9 mph
Barometer 30.03 in (1017.3 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 13 Jan 12:53 am CST
Extended Forecast for

Casey IL

  • Overnight

    Overnight: Partly cloudy, with a low around 32. South southwest wind 8 to 10 mph, with gusts as high as 20 mph.

    Low: 32 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 55. West southwest wind 11 to 18 mph, with gusts as high as 29 mph.

    High: 55 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 37. West wind 8 to 11 mph, with gusts as high as 21 mph.

    Low: 37 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: Mostly cloudy, with a temperature falling to around 28 by 5pm. Breezy, with a north northwest wind 13 to 23 mph, with gusts as high as 34 mph.

    High: 38 °F⇓

    Mostly Cloudy
    and Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 15. Blustery, with a north northwest wind 14 to 20 mph, with gusts as high as 30 mph.

    Low: 15 °F

    Mostly Cloudy
    and Blustery
    then Mostly
    Clear

  • Thursday

    Thursday: Sunny, with a high near 28. Northwest wind 7 to 14 mph becoming west southwest in the afternoon. Winds could gust as high as 21 mph.

    High: 28 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 20. South southwest wind 6 to 14 mph, with gusts as high as 23 mph.

    Low: 20 °F

    Mostly Cloudy

  • Friday

    Friday: A 30 percent chance of snow after noon. Mostly cloudy, with a high near 38.

    High: 38 °F

    Mostly Cloudy
    then Chance
    Snow

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 17.

    Low: 17 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 32. South southwest wind 8 to 10 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 55. West southwest wind 11 to 18 mph, with gusts as high as 29 mph.
Tuesday Night
A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 37. West wind 8 to 11 mph, with gusts as high as 21 mph.
Wednesday
Mostly cloudy, with a temperature falling to around 28 by 5pm. Breezy, with a north northwest wind 13 to 23 mph, with gusts as high as 34 mph.
Wednesday Night
Partly cloudy, with a low around 15. Blustery, with a north northwest wind 14 to 20 mph, with gusts as high as 30 mph.
Thursday
Sunny, with a high near 28. Northwest wind 7 to 14 mph becoming west southwest in the afternoon. Winds could gust as high as 21 mph.
Thursday Night
Mostly cloudy, with a low around 20. South southwest wind 6 to 14 mph, with gusts as high as 23 mph.
Friday
A 30 percent chance of snow after noon. Mostly cloudy, with a high near 38.
Friday Night
Mostly cloudy, with a low around 17.
Saturday
Mostly cloudy, with a high near 26.
Saturday Night
Mostly cloudy, with a low around 7.
Sunday
Mostly sunny, with a high near 20.
Sunday Night
Partly cloudy, with a low around 9.
M.L.King Day
Mostly sunny, with a high near 28.
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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:
9:36 pm CST Jan 12, 2026
Forecast Valid:
1am CST Jan 13, 2026-6pm CST Jan 19, 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