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.

Overcast

73°F

23°C

Humidity 84%
Wind Speed E 7 mph
Barometer 30.09 in (1017.8 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 15 Aug 3:51 am CDT
Extended Forecast for

Lake Bluff IL

  • Overnight

    Overnight: A 40 percent chance of showers and thunderstorms. Cloudy, with a low around 70. East southeast wind around 5 mph, with gusts as high as 10 mph.

    Low: 70 °F

    Chance
    Showers

  • Saturday

    Saturday: Showers and thunderstorms before 3pm, then a slight chance of showers. High near 78. South southeast wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 78 °F

    Showers then
    Chance
    Showers

  • Saturday Night

    Saturday Night: A slight chance of showers, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 72. South southeast wind around 5 mph becoming west southwest after midnight. Chance of precipitation is 30%.

    Low: 72 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms, mainly before 8am. Partly sunny, with a high near 83. West northwest wind around 10 mph, with gusts as high as 15 mph.

    High: 83 °F

    Chance
    T-storms then
    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 66. North northwest wind around 10 mph.

    Low: 66 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 81.

    High: 81 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 67.

    Low: 67 °F

    Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

Overnight
A 40 percent chance of showers and thunderstorms. Cloudy, with a low around 70. East southeast wind around 5 mph, with gusts as high as 10 mph.
Saturday
Showers and thunderstorms before 3pm, then a slight chance of showers. High near 78. South southeast wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
A slight chance of showers, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 72. South southeast wind around 5 mph becoming west southwest after midnight. Chance of precipitation is 30%.
Sunday
A 40 percent chance of showers and thunderstorms, mainly before 8am. Partly sunny, with a high near 83. West northwest wind around 10 mph, with gusts as high as 15 mph.
Sunday Night
Partly cloudy, with a low around 66. North northwest wind around 10 mph.
Monday
Sunny, with a high near 77.
Monday Night
Mostly clear, with a low around 64.
Tuesday
Partly sunny, with a high near 81.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 67.
Wednesday
A chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 75.
Wednesday Night
Mostly cloudy, with a low around 61.
Thursday
Mostly sunny, with a high near 70.
Thursday Night
Partly cloudy, with a low around 60.
Friday
Mostly sunny, with a high near 72.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lake Bluff IL
 42.28°N 87.85°W
Last Update:
3:11 am CDT Aug 15, 2026
Forecast Valid:
4am CDT Aug 15, 2026-6pm CDT Aug 21, 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