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 and Breezy

24°F

-4°C

Humidity 57%
Wind Speed SW 22 G 31 mph
Barometer 29.86 in (1013.4 mb)
Dewpoint 11°F (-12°C)
Visibility 10.00 mi
Wind Chill9°F (-13°C)
Last update 5 Dec 11:51 am CST
Extended Forecast for

Mc Cullom Lake IL

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 26. South southwest wind around 15 mph, with gusts as high as 25 mph.

    High: 26 °F

    Mostly Cloudy

  • Tonight

    Tonight: Patchy snow and freezing rain before 3am. Mostly cloudy, with a steady temperature around 26. Southwest wind 10 to 15 mph becoming west northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 40%.

    Low: 26 °F

    Patchy Wintry
    Mix

  • Saturday

    Saturday: Partly sunny, with a temperature falling to around 18 by 5pm. West northwest wind 5 to 10 mph becoming light west in the afternoon.

    High: 23 °F⇓

    Partly Sunny

  • Saturday Night

    Saturday Night: Snow likely, mainly after midnight. Mostly cloudy, with a low around 13. Calm wind becoming northeast around 5 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    Low: 13 °F

    Slight Chance
    Snow then
    Snow Likely

  • Sunday

    Sunday: A 50 percent chance of snow before noon. Partly sunny, with a high near 23. North wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 23 °F

    Chance Snow
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of snow showers before midnight. Partly cloudy, with a low around 3.

    Low: 3 °F

    Slight Chance
    Snow Showers
    then Mostly
    Cloudy

  • Monday

    Monday: Partly sunny, with a high near 21.

    High: 21 °F

    Partly Sunny

  • Monday Night

    Monday Night: Snow likely, mainly after midnight. Mostly cloudy, with a low around 13.

    Low: 13 °F

    Snow Likely

  • Tuesday

    Tuesday: A chance of snow after noon. Mostly cloudy, with a high near 34.

    High: 34 °F

    Mostly Cloudy
    then Chance
    Snow

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 26. South southwest wind around 15 mph, with gusts as high as 25 mph.
Tonight
Patchy snow and freezing rain before 3am. Mostly cloudy, with a steady temperature around 26. Southwest wind 10 to 15 mph becoming west northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 40%.
Saturday
Partly sunny, with a temperature falling to around 18 by 5pm. West northwest wind 5 to 10 mph becoming light west in the afternoon.
Saturday Night
Snow likely, mainly after midnight. Mostly cloudy, with a low around 13. Calm wind becoming northeast around 5 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Sunday
A 50 percent chance of snow before noon. Partly sunny, with a high near 23. North wind 5 to 15 mph, with gusts as high as 25 mph.
Sunday Night
A 20 percent chance of snow showers before midnight. Partly cloudy, with a low around 3.
Monday
Partly sunny, with a high near 21.
Monday Night
Snow likely, mainly after midnight. Mostly cloudy, with a low around 13.
Tuesday
A chance of snow after noon. Mostly cloudy, with a high near 34.
Tuesday Night
Snow. Cloudy, with a low around 27.
Wednesday
A chance of rain and snow. Mostly cloudy, with a high near 34.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 10.
Thursday
Partly sunny, with a high near 20.
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:
11:41 am CST Dec 5, 2025
Forecast Valid:
12pm CST Dec 5, 2025-6pm CST Dec 11, 2025
 
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