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

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Overcast

17°F

-8°C

Humidity 54%
Wind Speed Calm
Barometer 30.02 in (1018.7 mb)
Dewpoint 3°F (-16°C)
Visibility 10.00 mi
Last update 3 Jan 6:51 am CST
Extended Forecast for

Green Oaks IL

  • Today

    Today: Mostly cloudy, with a high near 26. West northwest wind around 5 mph.

    High: 26 °F

    Mostly Cloudy

  • Tonight

    Tonight: Partly cloudy, with a low around 14. Northwest wind around 5 mph, with gusts as high as 10 mph.

    Low: 14 °F

    Partly Cloudy

  • Sunday

    Sunday: Increasing clouds, with a high near 30. Calm wind becoming south around 5 mph in the afternoon. Winds could gust as high as 10 mph.

    High: 30 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: A slight chance of snow, freezing rain, and sleet before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 26. South wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.

    Low: 26 °F

    Slight Chance
    Wintry Mix
    then Mostly
    Cloudy

  • Monday

    Monday: Partly sunny, with a high near 41. West southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 41 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 26. West northwest wind around 5 mph.
Tonight
Partly cloudy, with a low around 14. Northwest wind around 5 mph, with gusts as high as 10 mph.
Sunday
Increasing clouds, with a high near 30. Calm wind becoming south around 5 mph in the afternoon. Winds could gust as high as 10 mph.
Sunday Night
A slight chance of snow, freezing rain, and sleet before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 26. South wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.
Monday
Partly sunny, with a high near 41. West southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Monday Night
Mostly cloudy, with a low around 32.
Tuesday
Mostly sunny, with a high near 44.
Tuesday Night
Mostly cloudy, with a low around 31.
Wednesday
Mostly sunny, with a high near 44.
Wednesday Night
Mostly cloudy, with a low around 36.
Thursday
A chance of rain. Mostly cloudy, with a high near 50.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 38.
Friday
A chance of rain. Partly sunny, with a high near 47.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Green Oaks IL
 42.3°N 87.91°W
Last Update:
3:36 am CST Jan 3, 2026
Forecast Valid:
6am CST Jan 3, 2026-6pm CST Jan 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