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

31°F

-1°C

Humidity 96%
Wind Speed E 6 mph
Barometer 29.85 in (1011.2 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 26 Feb 4:53 am CST
Extended Forecast for

Greenup IL

  • Overnight

    Overnight: A 20 percent chance of rain. Mostly cloudy, with a low around 31. Northeast wind around 7 mph.

    Low: 31 °F

    Slight Chance
    Rain

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 51. East northeast wind 5 to 7 mph becoming light and variable in the afternoon.

    High: 51 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 32. South southwest wind 3 to 6 mph.

    Low: 32 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 64. South southwest wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 29 mph.

    High: 64 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 37. South southwest wind 6 to 11 mph becoming north after midnight. Winds could gust as high as 22 mph.

    Low: 37 °F

    Mostly Clear

  • Saturday

    Saturday: Partly sunny, with a high near 57. Northeast wind 6 to 10 mph, with gusts as high as 16 mph.

    High: 57 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 28. North northeast wind 10 to 14 mph, with gusts as high as 23 mph.

    Low: 28 °F

    Partly Cloudy

  • Sunday

    Sunday: A 40 percent chance of snow after noon. Mostly cloudy, with a high near 38.

    High: 38 °F

    Mostly Cloudy
    then Chance
    Snow

  • Sunday Night

    Sunday Night: Rain and snow likely, mainly before midnight. Cloudy, with a low around 24. Chance of precipitation is 70%.

    Low: 24 °F

    Rain/Snow
    Likely

Detailed Forecast

Overnight
A 20 percent chance of rain. Mostly cloudy, with a low around 31. Northeast wind around 7 mph.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 51. East northeast wind 5 to 7 mph becoming light and variable in the afternoon.
Thursday Night
Mostly clear, with a low around 32. South southwest wind 3 to 6 mph.
Friday
Sunny, with a high near 64. South southwest wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 29 mph.
Friday Night
Mostly clear, with a low around 37. South southwest wind 6 to 11 mph becoming north after midnight. Winds could gust as high as 22 mph.
Saturday
Partly sunny, with a high near 57. Northeast wind 6 to 10 mph, with gusts as high as 16 mph.
Saturday Night
Partly cloudy, with a low around 28. North northeast wind 10 to 14 mph, with gusts as high as 23 mph.
Sunday
A 40 percent chance of snow after noon. Mostly cloudy, with a high near 38.
Sunday Night
Rain and snow likely, mainly before midnight. Cloudy, with a low around 24. Chance of precipitation is 70%.
Monday
Mostly cloudy, with a high near 36.
Monday Night
A chance of rain. Mostly cloudy, with a low around 23.
Tuesday
A chance of rain. Cloudy, with a high near 41.
Tuesday Night
A chance of rain. Cloudy, with a low around 29.
Wednesday
A chance of rain. Mostly cloudy, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Greenup IL
 39.24°N 88.18°W (Elev. 538 ft)
Last Update:
5:36 am CST Feb 26, 2026
Forecast Valid:
5am CST Feb 26, 2026-6pm CST Mar 4, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation