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.

Fair

26°F

-3°C

Humidity 60%
Wind Speed NE 7 mph
Barometer 30.49 in (1033.8 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 7 Apr 6:51 am CDT
Extended Forecast for

Chicago / Waukegan, Waukegan Regional Airport IL

  • Today

    Today: Sunny, with a high near 36. North northeast wind around 10 mph becoming east in the afternoon.

    High: 36 °F

    Sunny

  • Tonight

    Tonight: A slight chance of snow showers between 2am and 4am, then a slight chance of rain showers after 4am. Increasing clouds, with a steady temperature around 32. East wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 32 °F

    Partly Cloudy
    then Slight
    Chance
    Rain/Snow

  • Wednesday

    Wednesday: A 10 percent chance of showers before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 63. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 63 °F

    Breezy.
    Slight Chance
    Showers then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Showers likely, mainly after 1am. Mostly cloudy, with a low around 49. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.

    Low: 49 °F

    Showers
    Likely and
    Breezy

  • Thursday

    Thursday: A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 63. West southwest wind around 10 mph, with gusts as high as 15 mph.

    High: 63 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Low around 42. Chance of precipitation is 80%.

    Low: 42 °F

    Showers

  • Friday

    Friday: A 30 percent chance of showers before 1pm. Mostly cloudy, with a high near 51.

    High: 51 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 36. North northeast wind around 10 mph becoming east in the afternoon.
Tonight
A slight chance of snow showers between 2am and 4am, then a slight chance of rain showers after 4am. Increasing clouds, with a steady temperature around 32. East wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Wednesday
A 10 percent chance of showers before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 63. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.
Wednesday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 49. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.
Thursday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 63. West southwest wind around 10 mph, with gusts as high as 15 mph.
Thursday Night
Showers and possibly a thunderstorm. Low around 42. Chance of precipitation is 80%.
Friday
A 30 percent chance of showers before 1pm. Mostly cloudy, with a high near 51.
Friday Night
Partly cloudy, with a low around 37.
Saturday
Mostly sunny, with a high near 53.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 45.
Sunday
A chance of showers. Mostly cloudy, with a high near 73.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 58.
Monday
A chance of showers. Mostly cloudy, with a high near 75.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chicago / Waukegan, Waukegan Regional Airport IL
 42.41°N 87.87°W
Last Update:
3:56 am CDT Apr 7, 2026
Forecast Valid:
6am CDT Apr 7, 2026-6pm CDT Apr 13, 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