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

57°F

14°C

Humidity 78%
Wind Speed NE 8 mph
Barometer 30.16 in (1021.0 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 14 Oct 8:51 pm CDT
Extended Forecast for

Waukegan IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 56. East wind around 10 mph, with gusts as high as 15 mph.

    Low: 56 °F

    Mostly Cloudy

  • Thursday

    Thursday: Showers, mainly after 1pm. High near 58. East southeast wind 10 to 15 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 58 °F

    Chance
    Showers then
    Showers

  • Thursday Night

    Thursday Night: Showers, mainly before 1am. Low around 48. Breezy, with an east wind 10 to 15 mph becoming northwest 15 to 20 mph after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 48 °F

    Showers and
    Breezy

  • Friday

    Friday: Showers likely, mainly after 1pm. Mostly cloudy, with a high near 55. Breezy, with a northwest wind 20 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 70%.

    High: 55 °F

    Showers
    Likely and
    Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 37. Breezy, with a north wind 20 to 25 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 30 mph.

    Low: 37 °F

    Mostly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Saturday

    Saturday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 40.

    Low: 40 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 56. East wind around 10 mph, with gusts as high as 15 mph.
Thursday
Showers, mainly after 1pm. High near 58. East southeast wind 10 to 15 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Showers, mainly before 1am. Low around 48. Breezy, with an east wind 10 to 15 mph becoming northwest 15 to 20 mph after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Showers likely, mainly after 1pm. Mostly cloudy, with a high near 55. Breezy, with a northwest wind 20 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 70%.
Friday Night
Partly cloudy, with a low around 37. Breezy, with a north wind 20 to 25 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 30 mph.
Saturday
Sunny, with a high near 57.
Saturday Night
Clear, with a low around 40.
Sunday
Sunny, with a high near 63.
Sunday Night
Mostly clear, with a low around 44.
Monday
Mostly sunny, with a high near 65.
Monday Night
Partly cloudy, with a low around 45.
Tuesday
Sunny, with a high near 67.
Tuesday Night
Mostly clear, with a low around 49.
Wednesday
Mostly sunny, with a high near 69.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Waukegan IL
 42.37°N 87.88°W
Last Update:
9:36 pm CDT Oct 14, 2026
Forecast Valid:
9pm CDT Oct 14, 2026-6pm CDT Oct 21, 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