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Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fair

41°F

5°C

Humidity 55%
Wind Speed W 6 mph
Barometer 30.04 in (1017.9 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 18 Apr 10:51 pm CDT
Extended Forecast for

Lake Bluff IL

Freeze Watch April 20, 12:00am until April 20, 09:00am
Frost Advisory April 19, 12:00am until April 19, 09:00am
Click here for hazard details and duration
Freeze Watch
Frost Advisory

  • Tonight

    Tonight: Areas of frost after 2am. Otherwise, mostly clear, with a low around 35. West southwest wind 5 to 10 mph.

    Low: 35 °F

    Areas Frost

  • Sunday

    Sunday: A slight chance of snow showers before 8am, then a chance of rain showers. Increasing clouds, with a high near 49. West southwest wind 5 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 30%.

    High: 49 °F

    Slight Chance
    Rain/Snow
    then Chance
    Showers

  • Sunday Night

    Sunday Night: Widespread frost, mainly after 3am. Otherwise, mostly clear, with a low around 32. North northwest wind 5 to 10 mph becoming northeast after midnight. Winds could gust as high as 15 mph.

    Low: 32 °F

    Partly Cloudy
    then Frost

  • Monday

    Monday: Widespread frost before 8am. Otherwise, sunny, with a high near 48. Light east wind becoming southeast 5 to 10 mph in the morning.

    High: 48 °F

    Frost then
    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 41. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 41 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

Detailed Forecast

Tonight
Areas of frost after 2am. Otherwise, mostly clear, with a low around 35. West southwest wind 5 to 10 mph.
Sunday
A slight chance of snow showers before 8am, then a chance of rain showers. Increasing clouds, with a high near 49. West southwest wind 5 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 30%.
Sunday Night
Widespread frost, mainly after 3am. Otherwise, mostly clear, with a low around 32. North northwest wind 5 to 10 mph becoming northeast after midnight. Winds could gust as high as 15 mph.
Monday
Widespread frost before 8am. Otherwise, sunny, with a high near 48. Light east wind becoming southeast 5 to 10 mph in the morning.
Monday Night
Mostly cloudy, with a low around 41. South wind around 10 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 71.
Tuesday Night
Partly cloudy, with a low around 47.
Wednesday
Mostly sunny, with a high near 64.
Wednesday Night
Partly cloudy, with a low around 49.
Thursday
Mostly sunny, with a high near 76.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 58.
Friday
A chance of showers. Mostly cloudy, with a high near 69.
Friday Night
A chance of showers. Mostly cloudy, with a low around 44.
Saturday
Partly sunny, with a high near 59.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lake Bluff IL
 42.28°N 87.88°W
Last Update:
9:30 pm CDT Apr 18, 2026
Forecast Valid:
11pm CDT Apr 18, 2026-6pm CDT Apr 25, 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