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

27°F

-3°C

Humidity 89%
Wind Speed NE 9 mph
Barometer 30.12 in (1020.7 mb)
Dewpoint 24°F (-4°C)
Visibility 8.00 mi
Wind Chill18°F (-8°C)
Last update 3 Feb 3:53 am CST
Extended Forecast for

Greenup IL

  • Overnight

    Overnight: A 20 percent chance of snow. Cloudy, with a low around 23. East northeast wind around 6 mph.

    Low: 23 °F

    Slight Chance
    Snow

  • Tuesday

    Tuesday: A 40 percent chance of snow, mainly before 11am. Mostly cloudy, with a high near 31. North wind 6 to 10 mph, with gusts as high as 16 mph.

    High: 31 °F

    Chance Snow
    then Partly
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 14. North northeast wind around 7 mph.

    Low: 14 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 26. North wind 5 to 8 mph.

    High: 26 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 8. Light and variable wind.

    Low: 8 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 31. Light west wind becoming south southwest 5 to 10 mph in the morning. Winds could gust as high as 16 mph.

    High: 31 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 25. South wind around 10 mph becoming west after midnight. Winds could gust as high as 20 mph.

    Low: 25 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 41.

    High: 41 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 20.

    Low: 20 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of snow. Cloudy, with a low around 23. East northeast wind around 6 mph.
Tuesday
A 40 percent chance of snow, mainly before 11am. Mostly cloudy, with a high near 31. North wind 6 to 10 mph, with gusts as high as 16 mph.
Tuesday Night
Mostly cloudy, with a low around 14. North northeast wind around 7 mph.
Wednesday
Partly sunny, with a high near 26. North wind 5 to 8 mph.
Wednesday Night
Partly cloudy, with a low around 8. Light and variable wind.
Thursday
Partly sunny, with a high near 31. Light west wind becoming south southwest 5 to 10 mph in the morning. Winds could gust as high as 16 mph.
Thursday Night
Partly cloudy, with a low around 25. South wind around 10 mph becoming west after midnight. Winds could gust as high as 20 mph.
Friday
Mostly sunny, with a high near 41.
Friday Night
Partly cloudy, with a low around 20.
Saturday
Mostly sunny, with a high near 34.
Saturday Night
Mostly cloudy, with a low around 21.
Sunday
Mostly sunny, with a high near 34.
Sunday Night
Partly cloudy, with a low around 18.
Monday
Mostly sunny, with a high near 34.
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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:
3:37 am CST Feb 3, 2026
Forecast Valid:
4am CST Feb 3, 2026-6pm CST Feb 9, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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