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

Hazardous Weather Conditions

Current conditions at

Mattoon / Charleston, Coles County Memorial Airport (KMTO)

Lat: 39.48°NLon: 88.28°WElev: 722ft.

A Few Clouds

85°F

29°C

Humidity 77%
Wind Speed W 9 mph
Barometer 30.02 in (1015.6 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 16 Aug 1:53 pm CDT
Extended Forecast for

Greenup IL

  • This Afternoon

    This Afternoon: A 40 percent chance of showers and thunderstorms, mainly between 3pm and 5pm. Partly sunny, with a high near 88. West wind around 8 mph, with gusts as high as 15 mph.

    High: 88 °F

    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 1am. Increasing clouds, with a low around 69. Northwest wind around 5 mph becoming calm. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    Chance
    T-storms then
    Showers
    Likely

  • Monday

    Monday: Mostly sunny, with a high near 83. North northwest wind 5 to 8 mph.

    High: 83 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 62. North wind around 5 mph becoming calm in the evening.

    Low: 62 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 84. Calm wind.

    High: 84 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers after 1am. Partly cloudy, with a low around 66. Calm wind.

    Low: 66 °F

    Mostly Clear
    then Chance
    Showers

  • Wednesday

    Wednesday: Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 83. West wind 3 to 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.

    Low: 63 °F

    Chance
    T-storms

  • Thursday

    Thursday: Partly sunny, with a high near 80.

    High: 80 °F

    Partly Sunny

Detailed Forecast

This Afternoon
A 40 percent chance of showers and thunderstorms, mainly between 3pm and 5pm. Partly sunny, with a high near 88. West wind around 8 mph, with gusts as high as 15 mph.
Tonight
Showers and thunderstorms likely, mainly before 1am. Increasing clouds, with a low around 69. Northwest wind around 5 mph becoming calm. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Mostly sunny, with a high near 83. North northwest wind 5 to 8 mph.
Monday Night
Partly cloudy, with a low around 62. North wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 84. Calm wind.
Tuesday Night
A 30 percent chance of showers after 1am. Partly cloudy, with a low around 66. Calm wind.
Wednesday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 83. West wind 3 to 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Thursday
Partly sunny, with a high near 80.
Thursday Night
Partly cloudy, with a low around 59.
Friday
Mostly sunny, with a high near 81.
Friday Night
Mostly clear, with a low around 60.
Saturday
Sunny, with a high near 83.
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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:
1:26 pm CDT Aug 16, 2026
Forecast Valid:
1pm CDT Aug 16, 2026-6pm CDT Aug 22, 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