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.

Overcast

68°F

20°C

Humidity 93%
Wind Speed N 10 mph
Barometer 29.87 in (1010.7 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 2 Aug 9:51 am CDT
Extended Forecast for

Waukegan IL

  • Today

    Today: Partly sunny, with a high near 74. North northeast wind around 15 mph, with gusts as high as 25 mph.

    High: 74 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 61. North wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 61 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 77. East wind around 5 mph.

    High: 77 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 61. East wind around 5 mph becoming south southwest after midnight.

    Low: 61 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 82. Southwest wind 5 to 10 mph.

    High: 82 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 79. Chance of precipitation is 60%.

    High: 79 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 62.

    Low: 62 °F

    Showers
    Likely

  • Thursday

    Thursday: A chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 75.

    High: 75 °F

    Chance
    T-storms

Detailed Forecast

Today
Partly sunny, with a high near 74. North northeast wind around 15 mph, with gusts as high as 25 mph.
Tonight
Mostly clear, with a low around 61. North wind 5 to 15 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 77. East wind around 5 mph.
Monday Night
Mostly clear, with a low around 61. East wind around 5 mph becoming south southwest after midnight.
Tuesday
Sunny, with a high near 82. Southwest wind 5 to 10 mph.
Tuesday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 65.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 79. Chance of precipitation is 60%.
Wednesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 62.
Thursday
A chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 75.
Thursday Night
Partly cloudy, with a low around 64.
Friday
Mostly sunny, with a high near 79.
Friday Night
Mostly cloudy, with a low around 66.
Saturday
Partly sunny, with a high near 82.
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:
9:11 am CDT Aug 2, 2026
Forecast Valid:
10am CDT Aug 2, 2026-6pm CDT Aug 8, 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