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

70°F

21°C

Humidity 73%
Wind Speed Calm
Barometer 30.00 in (1014.8 mb)
Dewpoint 61°F (16°C)
Visibility 7.00 mi
Last update 13 Jul 8:51 pm CDT
Extended Forecast for

Waukegan IL

  • Tonight

    Tonight: Widespread haze. Mostly clear, with a low around 64. West southwest wind around 5 mph.

    Low: 64 °F

    Haze

  • Monday

    Monday: Sunny, with a high near 84. West southwest wind around 5 mph becoming south southeast in the afternoon.

    High: 84 °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 84. South wind 5 to 10 mph.

    High: 84 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71. Southeast wind around 5 mph becoming south southwest after midnight.

    Low: 71 °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 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 80.

    High: 80 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers before 1am. Mostly cloudy, with a low around 64.

    Low: 64 °F

    Chance
    Showers

Detailed Forecast

Tonight
Widespread haze. Mostly clear, with a low around 64. West southwest wind around 5 mph.
Monday
Sunny, with a high near 84. 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 84. South wind 5 to 10 mph.
Tuesday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71. Southeast wind around 5 mph becoming south southwest after midnight.
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 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Thursday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 80.
Thursday Night
A chance of showers before 1am. Mostly cloudy, with a low around 64.
Friday
Partly sunny, with a high near 76.
Friday Night
Partly cloudy, with a low around 64.
Saturday
Partly sunny, with a high near 78.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 67.
Sunday
A chance of showers. Mostly sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Waukegan IL
 42.37°N 87.88°W
Last Update:
8:56 pm CDT Jul 13, 2025
Forecast Valid:
9pm CDT Jul 13, 2025-6pm CDT Jul 20, 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