Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Rain Fog/Mist

57°F

14°C

Humidity 93%
Wind Speed Calm
Barometer 29.62 in (1002.8 mb)
Dewpoint 55°F (13°C)
Visibility 2.50 mi
Last update 17 Jun 9:51 am CDT
Extended Forecast for

Long Lake IL

Flood Watch June 17, 10:30am until June 17, 09:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch June 17, 10:30am until June 17, 09:00pm

    NOW until 9:00pm Wed

    Flood Watch

  • Today

    High: 66 °F

    Showers then
    Severe
    Thunderstorms

  • 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

Today
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. South southeast wind 10 to 15 mph becoming east in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches 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.
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ABOUT THIS FORECAST

 
Point Forecast:
Long Lake IL
 42.38°N 88.14°W
9:21 am CDT Jun 17, 2026
10am CDT Jun 17, 2026-6pm CDT Jun 23, 2026
 
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Additional Resources

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Hourly Weather Forecast

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