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.

Mostly Cloudy

74°F

23°C

Humidity 91%
Wind Speed SW 10 mph
Barometer 29.97 in (1013.4 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 19 Aug 12:51 am CDT
Extended Forecast for

Gurnee IL

Flood Watch August 19, 01:04am until August 19, 04:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch August 19, 01:04am until August 19, 04:00am

    NOW until 4:00am Tue

    Flood Watch

  • Overnight

    Low: 71 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 10 percent chance of showers and thunderstorms before 7am. Mostly cloudy, with a high near 83. North northwest wind 5 to 10 mph.

    High: 83 °F

    Slight Chance
    T-storms then
    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 67. North northeast wind around 5 mph.

    Low: 67 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 77. North northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 77 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 64. North northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 64 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

Detailed Forecast

Overnight
A 50 percent chance of showers and thunderstorms, mainly before 5am. Cloudy, with a low around 71. West wind around 5 mph.
Tuesday
A 10 percent chance of showers and thunderstorms before 7am. Mostly cloudy, with a high near 83. North northwest wind 5 to 10 mph.
Tuesday Night
Mostly cloudy, with a low around 67. North northeast wind around 5 mph.
Wednesday
Mostly sunny, with a high near 77. North northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday Night
Mostly clear, with a low around 64. North northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Thursday
Sunny, with a high near 80.
Thursday Night
Mostly clear, with a low around 62.
Friday
Mostly sunny, with a high near 84.
Friday Night
Partly cloudy, with a low around 64.
Saturday
Sunny, with a high near 79.
Saturday Night
Mostly clear, with a low around 57.
Sunday
Sunny, with a high near 73.
Sunday Night
Mostly clear, with a low around 53.
Monday
Sunny, with a high near 72.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Gurnee IL
 42.39°N 87.96°W
Last Update:
12:41 am CDT Aug 19, 2025
Forecast Valid:
1am CDT Aug 19, 2025-6pm CDT Aug 25, 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