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.

Fog/Mist

40°F

4°C

Humidity 100%
Wind Speed SE 15 mph
Barometer 29.81 in (1010.2 mb)
Dewpoint 40°F (4°C)
Visibility 4.00 mi
Wind Chill32°F (0°C)
Last update 27 Dec 9:51 pm CST
Extended Forecast for

Mc Cullom Lake IL

Wind Advisory December 28, 06:00pm until December 29, 06:00pm
Click here for hazard details and duration
Wind Advisory

  • Tonight

    Tonight: Areas of drizzle before midnight, then areas of drizzle with scattered showers after midnight. Widespread fog, mainly after 1am. Otherwise, cloudy, with a temperature rising to around 45 by 5am. Southeast wind 5 to 10 mph. Chance of precipitation is 50%.

    Low: 42 °F⇑

    Areas Drizzle
    and Fog

  • Sunday

    Sunday: Showers. Areas of fog before noon. High near 54. East southeast wind 5 to 10 mph becoming west southwest 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 54 °F

    Showers and
    Areas Fog

  • Sunday Night

    Sunday Night: Rain before 8pm, then snow, possibly mixed with rain between 8pm and 9pm, then snow after 9pm. Low around 16. Wind chill values as low as -3. Windy, with a west wind 20 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    Low: 16 °F

    Windy.
    Rain/Snow
    then Snow

  • Monday

    Monday: Snow likely before noon. Mostly cloudy, with a high near 23. Wind chill values as low as -3. Windy, with a west northwest wind 20 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 23 °F

    Snow Likely
    and Windy
    then Mostly
    Cloudy and
    Blustery

  • Monday Night

    Monday Night: Partly cloudy, with a low around 10. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 10 °F

    Partly Cloudy
    and Blustery
    then Mostly
    Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 26.

    High: 26 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 21.

    Low: 21 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 29.

    High: 29 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A chance of snow before midnight. Mostly cloudy, with a low around 10.

    Low: 10 °F

    Chance Snow
    then Mostly
    Cloudy

Detailed Forecast

Tonight
Areas of drizzle before midnight, then areas of drizzle with scattered showers after midnight. Widespread fog, mainly after 1am. Otherwise, cloudy, with a temperature rising to around 45 by 5am. Southeast wind 5 to 10 mph. Chance of precipitation is 50%.
Sunday
Showers. Areas of fog before noon. High near 54. East southeast wind 5 to 10 mph becoming west southwest 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday Night
Rain before 8pm, then snow, possibly mixed with rain between 8pm and 9pm, then snow after 9pm. Low around 16. Wind chill values as low as -3. Windy, with a west wind 20 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Monday
Snow likely before noon. Mostly cloudy, with a high near 23. Wind chill values as low as -3. Windy, with a west northwest wind 20 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Monday Night
Partly cloudy, with a low around 10. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Tuesday
Partly sunny, with a high near 26.
Tuesday Night
Mostly cloudy, with a low around 21.
Wednesday
Mostly cloudy, with a high near 29.
Wednesday Night
A chance of snow before midnight. Mostly cloudy, with a low around 10.
New Year's Day
Mostly sunny, with a high near 19.
Thursday Night
Mostly clear, with a low around 6.
Friday
Mostly sunny, with a high near 23.
Friday Night
Mostly cloudy, with a low around 14.
Saturday
Partly sunny, with a high near 32.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mc Cullom Lake IL
 42.36°N 88.29°W
Last Update:
9:56 pm CST Dec 27, 2025
Forecast Valid:
10pm CST Dec 27, 2025-6pm CST Jan 3, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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