Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Light Rain

16°C

61°F

Humidity 93%
Wind Speed NW 17 G 26 km/h
Barometer 1007.5 mb (29.77 in)
Dewpoint 15°C (59°F)
Visibility 14 km
Last update 15 Apr 10:51 pm CDT
Extended Forecast for

Long Lake IL

Flood Watch April 15, 11:46pm until April 16, 01:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch April 15, 11:46pm until April 16, 01:00am

    NOW until 1:00am Thu

    Flood Watch

  • Tonight

    Low: 17 °C

    Severe
    Thunderstorms

  • Thursday

    Thursday: A chance of showers and thunderstorms before 1pm, then a slight chance of showers between 1pm and 4pm.  Cloudy, then gradually becoming mostly sunny, with a high near 20. Southwest wind 10 to 15 km/h becoming north northwest in the afternoon. Winds could gust as high as 25 km/h.  Chance of precipitation is 50%.

    High: 20 °C

    Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 9. East northeast wind 5 to 10 km/h becoming southeast after midnight.

    Low: 9 °C

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 24. South southeast wind 10 to 15 km/h increasing to 20 to 25 km/h in the afternoon. Winds could gust as high as 40 km/h.

    High: 24 °C

    Partly Sunny

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm.  Low around 7. South southeast wind around 25 km/h becoming southwest after midnight. Winds could gust as high as 35 km/h.  Chance of precipitation is 90%.

    Low: 7 °C

    Showers

  • Saturday

    Saturday: A 30 percent chance of showers, mainly before 1pm.  Partly sunny, with a high near 13.

    High: 13 °C

    Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 0.

    Low: 0 °C

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 10.

    High: 10 °C

    Sunny

Detailed Forecast

Tonight
Showers and possibly a thunderstorm before midnight, then showers and thunderstorms likely, mainly between midnight and 1am. Some of the storms could be severe. Steady temperature around 17. West wind 10 to 20 km/h becoming south after midnight. Winds could gust as high as 30 km/h. Chance of precipitation is 90%. New rainfall amounts between 5 and 7.5 mm possible.
Thursday
A chance of showers and thunderstorms before 1pm, then a slight chance of showers between 1pm and 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 20. Southwest wind 10 to 15 km/h becoming north northwest in the afternoon. Winds could gust as high as 25 km/h. Chance of precipitation is 50%.
Thursday Night
Partly cloudy, with a low around 9. East northeast wind 5 to 10 km/h becoming southeast after midnight.
Friday
Partly sunny, with a high near 24. South southeast wind 10 to 15 km/h increasing to 20 to 25 km/h in the afternoon. Winds could gust as high as 40 km/h.
Friday Night
Showers and possibly a thunderstorm. Low around 7. South southeast wind around 25 km/h becoming southwest after midnight. Winds could gust as high as 35 km/h. Chance of precipitation is 90%.
Saturday
A 30 percent chance of showers, mainly before 1pm. Partly sunny, with a high near 13.
Saturday Night
Partly cloudy, with a low around 0.
Sunday
Sunny, with a high near 10.
Sunday Night
Patchy frost after 2am. Otherwise, partly cloudy, with a low around -1.
Monday
Patchy frost before 8am. Otherwise, sunny, with a high near 14.
Monday Night
Partly cloudy, with a low around 7.
Tuesday
Mostly sunny, with a high near 22.
Tuesday Night
Mostly clear, with a low around 8.
Wednesday
Mostly sunny, with a high near 18.
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ABOUT THIS FORECAST

 
Point Forecast:
Long Lake IL
 42.38°N 88.14°W
10:56 pm CDT Apr 15, 2026
11pm CDT Apr 15, 2026-6pm CDT Apr 22, 2026
 
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Additional Resources

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