National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Partly Cloudy

11°F

-12°C

Humidity 67%
Wind Speed NW 8 mph
Barometer 30.02 in (1018.9 mb)
Dewpoint 2°F (-17°C)
Visibility 10.00 mi
Wind Chill-1°F (-18°C)
Last update 1 Jan 7:51 am CST
Extended Forecast for

Mc Cullom Lake IL

  • New Year's Day

    New Year's Day: Snow, mainly before 2pm. High near 18. Wind chill values as low as zero. West northwest wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 80%. Total daytime snow accumulation of less than one inch possible.

    High: 18 °F

    Chance Snow
    then Snow

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 12. West northwest wind around 5 mph, with gusts as high as 10 mph.

    Low: 12 °F

    Decreasing
    Clouds

  • Friday

    Friday: Mostly sunny, with a high near 23. Northwest wind around 5 mph, with gusts as high as 10 mph.

    High: 23 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 15. Northwest wind around 5 mph becoming calm.

    Low: 15 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 27. Calm wind becoming west northwest around 5 mph in the afternoon.

    High: 27 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 12.

    Low: 12 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 28.

    High: 28 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A chance of snow before midnight. Mostly cloudy, with a low around 23.

    Low: 23 °F

    Chance Snow
    then Mostly
    Cloudy

  • Monday

    Monday: Partly sunny, with a high near 39.

    High: 39 °F

    Partly Sunny

Detailed Forecast

New Year's Day
Snow, mainly before 2pm. High near 18. Wind chill values as low as zero. West northwest wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 80%. Total daytime snow accumulation of less than one inch possible.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 12. West northwest wind around 5 mph, with gusts as high as 10 mph.
Friday
Mostly sunny, with a high near 23. Northwest wind around 5 mph, with gusts as high as 10 mph.
Friday Night
Mostly cloudy, with a low around 15. Northwest wind around 5 mph becoming calm.
Saturday
Mostly cloudy, with a high near 27. Calm wind becoming west northwest around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 12.
Sunday
Mostly sunny, with a high near 28.
Sunday Night
A chance of snow before midnight. Mostly cloudy, with a low around 23.
Monday
Partly sunny, with a high near 39.
Monday Night
Mostly cloudy, with a low around 28.
Tuesday
Mostly cloudy, with a high near 43.
Tuesday Night
Mostly cloudy, with a low around 30.
Wednesday
Mostly cloudy, with a high near 40.
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:
8:12 am CST Jan 1, 2026
Forecast Valid:
8am CST Jan 1, 2026-6pm CST Jan 7, 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