Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Mostly Cloudy

57°F

14°C

Humidity 87%
Wind Speed SE 13 G 23 mph
Barometer 29.47 in (997.6 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 17 Jun 11:51 am CDT
Extended Forecast for

Long Lake IL

Flood Watch June 17, 12:14pm until June 17, 09:00pm
Wind Advisory June 17, 12:14pm until June 17, 01:00pm
Click here for hazard details and duration
Flood Watch
...
  •  
    Flood Watch June 17, 12:14pm until June 17, 09:00pm
    Wind Advisory June 17, 12:14pm until June 17, 01:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • This Afternoon

    High: 66 °F

    Severe
    Thunderstorms
    and Breezy

  • Tonight

    Tonight: A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Some of the storms could be severe.  Mostly cloudy, with a low around 57. West southwest wind 10 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 40%.

    Low: 57 °F

    Severe
    Thunderstorms
    then Partly
    Cloudy

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 72. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 72 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 53. West northwest wind 5 to 10 mph.

    Low: 53 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 74. West northwest wind 5 to 15 mph.

    High: 74 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers after 1am.  Mostly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm before 4pm, then showers and thunderstorms likely between 4pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Some of the storms could be severe and produce heavy rainfall. High near 66. Breezy, with a south southeast wind 15 to 20 mph becoming east. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Tonight
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Some of the storms could be severe. Mostly cloudy, with a low around 57. West southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 72. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 53. West northwest wind 5 to 10 mph.
Juneteenth
Sunny, with a high near 74. West northwest wind 5 to 15 mph.
Friday Night
Mostly clear, with a low around 56.
Saturday
Mostly sunny, with a high near 78.
Saturday Night
A chance of showers after 1am. Mostly cloudy, with a low around 59.
Sunday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 72.
Sunday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 56.
Monday
Mostly sunny, with a high near 73.
Monday Night
Partly cloudy, with a low around 54.
Tuesday
Mostly sunny, with a high near 77.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Long Lake IL
 42.38°N 88.14°W
10:51 am CDT Jun 17, 2026
12pm CDT Jun 17, 2026-6pm CDT Jun 23, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database