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.

Mostly Cloudy

27°F

-3°C

Humidity 72%
Wind Speed SE 9 mph
Barometer 30.29 in (1027.3 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 8 Feb 6:51 pm CST
Extended Forecast for

Waukegan IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 21. South southeast wind around 10 mph, with gusts as high as 15 mph.

    Low: 21 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 37. South wind 5 to 10 mph.

    High: 37 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 32. South wind around 10 mph becoming west after midnight. Winds could gust as high as 15 mph.

    Low: 32 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 39. West northwest wind around 10 mph, with gusts as high as 20 mph.

    High: 39 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 24. Northwest wind around 10 mph, with gusts as high as 15 mph.

    Low: 24 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 34.

    High: 34 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 23.

    Low: 23 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 33.

    High: 33 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A chance of snow. Mostly cloudy, with a low around 26.

    Low: 26 °F

    Chance Snow

Detailed Forecast

Tonight
Mostly cloudy, with a low around 21. South southeast wind around 10 mph, with gusts as high as 15 mph.
Monday
Partly sunny, with a high near 37. South wind 5 to 10 mph.
Monday Night
Mostly cloudy, with a low around 32. South wind around 10 mph becoming west after midnight. Winds could gust as high as 15 mph.
Tuesday
Partly sunny, with a high near 39. West northwest wind around 10 mph, with gusts as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 24. Northwest wind around 10 mph, with gusts as high as 15 mph.
Wednesday
Mostly sunny, with a high near 34.
Wednesday Night
Mostly cloudy, with a low around 23.
Thursday
Mostly cloudy, with a high near 33.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 26.
Friday
Mostly cloudy, with a high near 36.
Friday Night
Partly cloudy, with a low around 26.
Saturday
A chance of rain and snow. Mostly sunny, with a high near 37.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 28.
Sunday
Partly sunny, with a high near 38.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Waukegan IL
 42.37°N 87.85°W
Last Update:
6:51 pm CST Feb 8, 2026
Forecast Valid:
7pm CST Feb 8, 2026-6pm CST Feb 15, 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