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

Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Light Rain Fog/Mist

61°F

16°C

Humidity 100%
Wind Speed SW 7 mph
Barometer 29.72 in (1006.1 mb)
Dewpoint 61°F (16°C)
Visibility 3.00 mi
Last update 15 Oct 7:51 pm CDT
Extended Forecast for

Waukegan IL

  • Tonight

    Tonight: Showers likely, mainly before 10pm. Cloudy, with a low around 47. Breezy, with a south southwest wind 5 to 10 mph becoming west 15 to 20 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 47 °F

    Showers
    Likely then
    Mostly Cloudy
    and Breezy

  • Friday

    Friday: Showers likely, mainly after 1pm. Mostly cloudy, with a high near 53. Breezy, with a west northwest wind 20 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 53 °F

    Breezy.
    Slight Chance
    Showers then
    Showers
    Likely

  • Friday Night

    Friday Night: A 30 percent chance of showers before 7pm. Mostly clear, with a low around 36. Breezy, with a north northwest wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 30 mph.

    Low: 36 °F

    Chance
    Showers and
    Breezy then
    Mostly Clear

  • Saturday

    Saturday: Areas of frost before 8am. Otherwise, sunny, with a high near 58. North northwest wind 5 to 10 mph becoming southwest in the afternoon.

    High: 58 °F

    Areas Frost
    then Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 40. Southwest wind around 10 mph, with gusts as high as 15 mph.

    Low: 40 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

Detailed Forecast

Tonight
Showers likely, mainly before 10pm. Cloudy, with a low around 47. Breezy, with a south southwest wind 5 to 10 mph becoming west 15 to 20 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Showers likely, mainly after 1pm. Mostly cloudy, with a high near 53. Breezy, with a west northwest wind 20 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A 30 percent chance of showers before 7pm. Mostly clear, with a low around 36. Breezy, with a north northwest wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 30 mph.
Saturday
Areas of frost before 8am. Otherwise, sunny, with a high near 58. North northwest wind 5 to 10 mph becoming southwest in the afternoon.
Saturday Night
Mostly clear, with a low around 40. Southwest wind around 10 mph, with gusts as high as 15 mph.
Sunday
Sunny, with a high near 62.
Sunday Night
Mostly clear, with a low around 42.
Monday
Mostly sunny, with a high near 65.
Monday Night
Partly cloudy, with a low around 44.
Tuesday
Mostly sunny, with a high near 67.
Tuesday Night
Mostly clear, with a low around 46.
Wednesday
Mostly sunny, with a high near 68.
Wednesday Night
Partly cloudy, with a low around 50.
Thursday
Mostly sunny, with a high near 70.
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 87.88°W
Last Update:
2:51 pm CDT Oct 15, 2026
Forecast Valid:
8pm CDT Oct 15, 2026-6pm CDT Oct 22, 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