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.

Fair

81°F

27°C

Humidity 51%
Wind Speed NW 6 mph
Barometer 30.00 in (1014.9 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 13 Jul 3:51 pm CDT
Extended Forecast for

Waukegan IL

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 79. Southwest wind 5 to 10 mph.

    High: 79 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 65. Southwest wind around 5 mph.

    Low: 65 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 83. West southwest wind around 5 mph becoming south southeast in the afternoon.

    High: 83 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 68. South southeast wind around 5 mph.

    Low: 68 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 83. South wind 5 to 10 mph.

    High: 83 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72.

    Low: 72 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 86. Chance of precipitation is 40%.

    High: 86 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 80.

    High: 80 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

This Afternoon
Partly sunny, with a high near 79. Southwest wind 5 to 10 mph.
Tonight
Partly cloudy, with a low around 65. Southwest wind around 5 mph.
Monday
Sunny, with a high near 83. West southwest wind around 5 mph becoming south southeast in the afternoon.
Monday Night
Mostly clear, with a low around 68. South southeast wind around 5 mph.
Tuesday
Sunny, with a high near 83. South wind 5 to 10 mph.
Tuesday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 86. Chance of precipitation is 40%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Thursday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 80.
Thursday Night
A chance of showers before 1am. Mostly cloudy, with a low around 65.
Friday
Partly sunny, with a high near 75.
Friday Night
Partly cloudy, with a low around 65.
Saturday
Partly sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Waukegan IL
 42.37°N 87.85°W
Last Update:
2:06 pm CDT Jul 13, 2025
Forecast Valid:
3pm CDT Jul 13, 2025-6pm CDT Jul 19, 2025
 
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