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

69°F

21°C

Humidity 90%
Wind Speed E 3 mph
Barometer 29.99 in (1014.5 mb)
Dewpoint 66°F (19°C)
Visibility 9.00 mi
Last update 21 Sep 12:51 am CDT
Extended Forecast for

Lake Bluff IL

  • Overnight

    Overnight: Scattered showers and thunderstorms. Cloudy, with a low around 66. Southeast wind around 5 mph. Chance of precipitation is 40%.

    Low: 66 °F

    Scattered
    Showers

  • Sunday

    Sunday: Scattered showers and thunderstorms. Mostly cloudy, with a high near 74. South wind 5 to 10 mph. Chance of precipitation is 40%.

    High: 74 °F

    Scattered
    Showers then
    Scattered
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Southeast wind around 5 mph becoming west southwest after midnight. Chance of precipitation is 40%.

    Low: 63 °F

    Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 10am. Mostly cloudy, with a high near 76. South wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 50%.

    High: 76 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64. South wind around 5 mph becoming calm in the evening.

    Low: 64 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 73. Chance of precipitation is 40%.

    High: 73 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 63. Chance of precipitation is 30%.

    Low: 63 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers after 1pm. Mostly cloudy, with a high near 68.

    High: 68 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 60.

    Low: 60 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Scattered showers and thunderstorms. Cloudy, with a low around 66. Southeast wind around 5 mph. Chance of precipitation is 40%.
Sunday
Scattered showers and thunderstorms. Mostly cloudy, with a high near 74. South wind 5 to 10 mph. Chance of precipitation is 40%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Southeast wind around 5 mph becoming west southwest after midnight. Chance of precipitation is 40%.
Monday
A chance of showers, with thunderstorms also possible after 10am. Mostly cloudy, with a high near 76. South wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 50%.
Monday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64. South wind around 5 mph becoming calm in the evening.
Tuesday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 73. Chance of precipitation is 40%.
Tuesday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 63. Chance of precipitation is 30%.
Wednesday
A chance of showers after 1pm. Mostly cloudy, with a high near 68.
Wednesday Night
Mostly cloudy, with a low around 60.
Thursday
A chance of showers after 1pm. Partly sunny, with a high near 68.
Thursday Night
Partly cloudy, with a low around 58.
Friday
Mostly sunny, with a high near 70.
Friday Night
Partly cloudy, with a low around 58.
Saturday
Mostly sunny, with a high near 69.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lake Bluff IL
 42.28°N 87.85°W
Last Update:
12:41 am CDT Sep 21, 2025
Forecast Valid:
1am CDT Sep 21, 2025-6pm CDT Sep 27, 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