National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
News Headlines

Hazardous Weather Conditions

Current conditions at

Mattoon / Charleston, Coles County Memorial Airport (KMTO)

Lat: 39.48°NLon: 88.28°WElev: 722ft.

Overcast

60°F

16°C

Humidity 93%
Wind Speed NW 17 G 32 mph
Barometer 29.95 in (1013.8 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 16 Oct 12:53 am CDT
Extended Forecast for

Greenup IL

  • Overnight

    Overnight: A 30 percent chance of showers, mainly before 4am. Cloudy, with a low around 49. West northwest wind around 18 mph, with gusts as high as 30 mph.

    Low: 49 °F

    Chance
    Showers

  • Friday

    Friday: A slight chance of showers before 7am, then a chance of showers after 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 56. Northwest wind around 18 mph, with gusts as high as 31 mph. Chance of precipitation is 40%.

    High: 56 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers, mainly before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 39. North wind 11 to 17 mph, with gusts as high as 26 mph.

    Low: 39 °F

    Chance
    Showers then
    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 59. North northeast wind 5 to 8 mph, with gusts as high as 15 mph.

    High: 59 °F

    Sunny

  • Saturday Night

    Saturday Night: Areas of frost after 3am. Otherwise, clear, with a low around 34. Calm wind.

    Low: 34 °F

    Clear then
    Areas Frost

  • Sunday

    Sunday: Widespread frost, mainly before 7am. Otherwise, sunny, with a high near 67. South wind 3 to 7 mph.

    High: 67 °F

    Frost then
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 38. Light south southeast wind.

    Low: 38 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 30 percent chance of showers, mainly before 4am. Cloudy, with a low around 49. West northwest wind around 18 mph, with gusts as high as 30 mph.
Friday
A slight chance of showers before 7am, then a chance of showers after 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 56. Northwest wind around 18 mph, with gusts as high as 31 mph. Chance of precipitation is 40%.
Friday Night
A 30 percent chance of showers, mainly before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 39. North wind 11 to 17 mph, with gusts as high as 26 mph.
Saturday
Sunny, with a high near 59. North northeast wind 5 to 8 mph, with gusts as high as 15 mph.
Saturday Night
Areas of frost after 3am. Otherwise, clear, with a low around 34. Calm wind.
Sunday
Widespread frost, mainly before 7am. Otherwise, sunny, with a high near 67. South wind 3 to 7 mph.
Sunday Night
Mostly clear, with a low around 38. Light south southeast wind.
Monday
Mostly sunny, with a high near 71.
Monday Night
Partly cloudy, with a low around 43.
Tuesday
Mostly sunny, with a high near 75.
Tuesday Night
Mostly clear, with a low around 45.
Wednesday
Sunny, with a high near 77.
Wednesday Night
Mostly clear, with a low around 46.
Thursday
Sunny, with a high near 79.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Greenup IL
 39.24°N 88.18°W (Elev. 538 ft)
Last Update:
1:21 am CDT Oct 16, 2026
Forecast Valid:
1am CDT Oct 16, 2026-6pm CDT Oct 22, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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