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.

Fog/Mist

37°F

3°C

Humidity 96%
Wind Speed SE 5 mph
Barometer 30.15 in (1021.4 mb)
Dewpoint 36°F (2°C)
Visibility 5.00 mi
Wind Chill33°F (1°C)
Last update 3 Mar 1:53 am CST
Extended Forecast for

Greenup IL

  • Overnight

    Overnight: Showers likely, mainly after 5am. Patchy fog. Otherwise, cloudy, with a low around 36. Light east wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Showers
    Likely and
    Patchy Fog

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm. Areas of fog. High near 50. Light and variable wind becoming southeast around 6 mph in the morning. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 50 °F

    Showers and
    Areas Fog

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Areas of fog. Low around 46. East northeast wind around 7 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    Low: 46 °F

    Showers and
    Areas Fog

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. Patchy fog before noon. High near 61. East wind around 7 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 61 °F

    Showers and
    Patchy Fog

  • Wednesday Night

    Wednesday Night: Rain and possibly a thunderstorm. Low around 54. South wind 5 to 8 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    Low: 54 °F

    Rain

  • Thursday

    Thursday: Rain. High near 66. South southwest wind 8 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 66 °F

    Rain

  • Thursday Night

    Thursday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 53. Southwest wind 5 to 7 mph becoming south southeast after midnight.

    Low: 53 °F

    Chance Rain

  • Friday

    Friday: A chance of rain and thunderstorms. Mostly cloudy, with a high near 75. Breezy. Chance of precipitation is 50%.

    High: 75 °F

    Chance
    T-storms then
    Chance Rain
    and Breezy

  • Friday Night

    Friday Night: A chance of rain, then rain likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.

    Low: 59 °F

    Chance Rain
    then Rain
    Likely

Detailed Forecast

Overnight
Showers likely, mainly after 5am. Patchy fog. Otherwise, cloudy, with a low around 36. Light east wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Showers and possibly a thunderstorm. Areas of fog. High near 50. Light and variable wind becoming southeast around 6 mph in the morning. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday Night
Showers and possibly a thunderstorm. Areas of fog. Low around 46. East northeast wind around 7 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Wednesday
Showers and possibly a thunderstorm. Patchy fog before noon. High near 61. East wind around 7 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Rain and possibly a thunderstorm. Low around 54. South wind 5 to 8 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Thursday
Rain. High near 66. South southwest wind 8 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 53. Southwest wind 5 to 7 mph becoming south southeast after midnight.
Friday
A chance of rain and thunderstorms. Mostly cloudy, with a high near 75. Breezy. Chance of precipitation is 50%.
Friday Night
A chance of rain, then rain likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.
Saturday
Rain, with thunderstorms also possible after noon. High near 68. Chance of precipitation is 80%.
Saturday Night
Mostly cloudy, with a low around 43.
Sunday
Mostly sunny, with a high near 62.
Sunday Night
Partly cloudy, with a low around 48.
Monday
Sunny, with a high near 69.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Greenup IL
 39.24°N 88.15°W (Elev. 587 ft)
Last Update:
2:21 am CST Mar 3, 2026
Forecast Valid:
2am CST Mar 3, 2026-6pm CDT Mar 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