Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Light Rain Fog/Mist

35°F

2°C

Humidity 96%
Wind Speed N 13 G 22 mph
Barometer 29.33 in (993.9 mb)
Dewpoint 34°F (1°C)
Visibility 3.00 mi
Wind Chill26°F (-3°C)
Last update 15 Mar 4:51 pm CDT
Extended Forecast for

Mc Cullom Lake IL

Winter Weather Advisory March 15, 10:00pm until March 16, 01:00pm
Click here for hazard details and duration
Winter Weather Advisory
  • This Afternoon

    This Afternoon: Showers and possibly a thunderstorm.  Steady temperature around 36. Breezy, with a north wind around 20 mph, with gusts as high as 30 mph.  Chance of precipitation is 100%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 36 °F

    Showers and
    Breezy

  • Tonight

    Tonight: Rain, freezing rain, and sleet before 11pm, then snow, possibly mixed with sleet between 11pm and midnight, then snow after midnight. Some thunder is also possible.  Patchy blowing snow after 1am. Low around 20. Windy, with a north wind 20 to 25 mph increasing to 25 to 30 mph after midnight. Winds could gust as high as 40 mph.  Chance of precipitation is 100%. New ice accumulation of less than a 0.1 of an inch possible.  New snow and sleet accumulation of 1 to 3 inches possible.

    Low: 20 °F

    Wintry Mix
    and Blustery
    then Snow and
    Patchy
    Blowing Snow

  • Monday

    Monday: Snow, mainly before 1pm.  Areas of blowing snow. High near 22. Windy, with a northwest wind 25 to 30 mph, with gusts as high as 45 mph.  Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    High: 22 °F

    Snow and
    Areas Blowing
    Snow

  • Monday Night

    Monday Night: Patchy blowing snow before 7pm. Cloudy, then gradually becoming partly cloudy, with a low around 7. Wind chill values as low as -6. Blustery, with a west northwest wind 10 to 20 mph, with gusts as high as 30 mph.

    Low: 7 °F

    Patchy
    Blowing Snow
    and Blustery
    then Partly
    Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 22. West northwest wind around 10 mph, with gusts as high as 15 mph.

    High: 22 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Snow showers likely, mainly after 1am.  Mostly cloudy, with a low around 17. Chance of precipitation is 60%.

    Low: 17 °F

    Chance Snow
    Showers then
    Snow Showers
    Likely

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 41.

    High: 41 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A chance of showers after 1am.  Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 50.

    High: 50 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. Steady temperature around 36. Breezy, with a north wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Rain, freezing rain, and sleet before 11pm, then snow, possibly mixed with sleet between 11pm and midnight, then snow after midnight. Some thunder is also possible. Patchy blowing snow after 1am. Low around 20. Windy, with a north wind 20 to 25 mph increasing to 25 to 30 mph after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 100%. New ice accumulation of less than a 0.1 of an inch possible. New snow and sleet accumulation of 1 to 3 inches possible.
Monday
Snow, mainly before 1pm. Areas of blowing snow. High near 22. Windy, with a northwest wind 25 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Monday Night
Patchy blowing snow before 7pm. Cloudy, then gradually becoming partly cloudy, with a low around 7. Wind chill values as low as -6. Blustery, with a west northwest wind 10 to 20 mph, with gusts as high as 30 mph.
Tuesday
Mostly sunny, with a high near 22. West northwest wind around 10 mph, with gusts as high as 15 mph.
Tuesday Night
Snow showers likely, mainly after 1am. Mostly cloudy, with a low around 17. Chance of precipitation is 60%.
Wednesday
Mostly cloudy, with a high near 41.
Wednesday Night
A chance of showers after 1am. Mostly cloudy, with a low around 32.
Thursday
Mostly sunny, with a high near 50.
Thursday Night
Mostly cloudy, with a low around 34.
Friday
Partly sunny, with a high near 58.
Friday Night
Mostly cloudy, with a low around 38.
Saturday
Mostly sunny, with a high near 57.
Saturday Night
Partly cloudy, with a low around 35.
Sunday
Partly sunny, with a high near 50.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Mc Cullom Lake IL
 42.36°N 88.29°W
4:31 pm CDT Mar 15, 2026
5pm CDT Mar 15, 2026-6pm CDT Mar 22, 2026
 
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