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.

A Few Clouds

73°F

23°C

Humidity 71%
Wind Speed SW 15 G 23 mph
Barometer 29.80 in (1008.0 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 14 Apr 11:51 am CDT
Extended Forecast for

Long Lake IL

  • This Afternoon

    This Afternoon: Scattered showers and thunderstorms, mainly after 5pm. Partly sunny, with a high near 81. South southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    High: 81 °F

    Scattered
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 3am, then a chance of showers and thunderstorms after 3am. Low around 61. South southwest wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 61 °F

    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms, mainly before 1pm, then showers and possibly a thunderstorm after 4pm. High near 73. Southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 73 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Low around 57. South southwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 80%.

    Low: 57 °F

    Showers

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 10am. Mostly cloudy, with a high near 70. West wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 50%.

    High: 70 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A slight chance of thunderstorms before 7pm. Partly cloudy, with a low around 49. Chance of precipitation is 10%.

    Low: 49 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 74.

    High: 74 °F

    Partly Sunny

  • Friday Night

    Friday Night: Showers likely, then showers and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 54.

    Low: 54 °F

    Showers

  • Saturday

    Saturday: Showers likely, mainly before 1pm. Partly sunny, with a high near 66. Breezy.

    High: 66 °F

    Showers
    Likely and
    Breezy

Detailed Forecast

This Afternoon
Scattered showers and thunderstorms, mainly after 5pm. Partly sunny, with a high near 81. South southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Tonight
Showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 3am, then a chance of showers and thunderstorms after 3am. Low around 61. South southwest wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday
Showers and thunderstorms, mainly before 1pm, then showers and possibly a thunderstorm after 4pm. High near 73. Southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Low around 57. South southwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 80%.
Thursday
A chance of showers, with thunderstorms also possible after 10am. Mostly cloudy, with a high near 70. West wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 50%.
Thursday Night
A slight chance of thunderstorms before 7pm. Partly cloudy, with a low around 49. Chance of precipitation is 10%.
Friday
Partly sunny, with a high near 74.
Friday Night
Showers likely, then showers and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 54.
Saturday
Showers likely, mainly before 1pm. Partly sunny, with a high near 66. Breezy.
Saturday Night
Mostly cloudy, with a low around 35.
Sunday
Mostly sunny, with a high near 51.
Sunday Night
Mostly clear, with a low around 33.
Monday
Sunny, with a high near 57.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Long Lake IL
 42.38°N 88.14°W
Last Update:
11:31 am CDT Apr 14, 2026
Forecast Valid:
12pm CDT Apr 14, 2026-6pm CDT Apr 20, 2026
 
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