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

44°F

7°C

Humidity 58%
Wind Speed NE 10 mph
Barometer 30.08 in (1018.7 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 28 Feb 8:53 am CST
Extended Forecast for

Greenup IL

  • Today

    Today: Isolated showers after 5pm. Increasing clouds, with a high near 58. East wind 6 to 11 mph. Chance of precipitation is 20%.

    High: 58 °F

    Sunny then
    Isolated
    Showers

  • Tonight

    Tonight: Isolated showers before 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 28. East wind 6 to 14 mph becoming north after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 20%.

    Low: 28 °F

    Isolated
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 42. North northeast wind 10 to 15 mph, with gusts as high as 23 mph.

    High: 42 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Snow likely, mainly after midnight. Cloudy, with a low around 28. Northeast wind around 10 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    Low: 28 °F

    Snow Likely

  • Monday

    Monday: A chance of snow before 9am, then a chance of rain between 9am and noon. Mostly cloudy, with a high near 42. East southeast wind 8 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 42 °F

    Chance
    Rain/Snow
    then Mostly
    Cloudy

  • Monday Night

    Monday Night: Rain likely, mainly after midnight. Cloudy, with a low around 36. East southeast wind 7 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 36 °F

    Chance Rain
    then Rain
    Likely

  • Tuesday

    Tuesday: Rain. High near 56. South wind 11 to 14 mph becoming west southwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 56 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain, with thunderstorms also possible after midnight. Low around 46. Chance of precipitation is 80%.

    Low: 46 °F

    Rain

  • Wednesday

    Wednesday: Rain likely and possibly a thunderstorm. Cloudy, with a high near 61. Chance of precipitation is 70%.

    High: 61 °F

    Rain Likely

Detailed Forecast

Today
Isolated showers after 5pm. Increasing clouds, with a high near 58. East wind 6 to 11 mph. Chance of precipitation is 20%.
Tonight
Isolated showers before 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 28. East wind 6 to 14 mph becoming north after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 20%.
Sunday
Mostly cloudy, with a high near 42. North northeast wind 10 to 15 mph, with gusts as high as 23 mph.
Sunday Night
Snow likely, mainly after midnight. Cloudy, with a low around 28. Northeast wind around 10 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Monday
A chance of snow before 9am, then a chance of rain between 9am and noon. Mostly cloudy, with a high near 42. East southeast wind 8 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Monday Night
Rain likely, mainly after midnight. Cloudy, with a low around 36. East southeast wind 7 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
Rain. High near 56. South wind 11 to 14 mph becoming west southwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
Rain, with thunderstorms also possible after midnight. Low around 46. Chance of precipitation is 80%.
Wednesday
Rain likely and possibly a thunderstorm. Cloudy, with a high near 61. Chance of precipitation is 70%.
Wednesday Night
Rain likely, mainly before midnight. Mostly cloudy, with a low around 49. Chance of precipitation is 60%.
Thursday
A chance of rain. Mostly cloudy, with a high near 65.
Thursday Night
A chance of rain. Partly cloudy, with a low around 53.
Friday
Rain likely. Mostly cloudy, with a high near 68.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Greenup IL
 39.24°N 88.18°W (Elev. 538 ft)
Last Update:
8:57 am CST Feb 28, 2026
Forecast Valid:
9am CST Feb 28, 2026-6pm CST Mar 6, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation