Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Overcast

21°F

-6°C

Humidity 88%
Wind Speed S 7 mph
Barometer 30.00 in (1018.0 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill12°F (-11°C)
Last update 21 Jan 2:51 am CST
Extended Forecast for

Mc Cullom Lake IL

Extreme Cold Watch January 23, 03:00am until January 23, 12:00pm
Click here for hazard details and duration
Extreme Cold Watch
  • Overnight

    Overnight: Snow likely, mainly before 5am.  Cloudy, with a steady temperature around 20. South southeast wind around 5 mph, with gusts as high as 10 mph.  Chance of precipitation is 70%. Total nighttime snow accumulation of 1 to 3 inches possible.

    Low: 20 °F

    Snow Likely

  • Wednesday

    Wednesday: A chance of snow before 10am, then a chance of snow showers after 5pm.  Mostly cloudy, with a high near 26. West wind 5 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 50%.

    High: 26 °F

    Chance Snow

  • Wednesday Night

    Wednesday Night: Snow showers likely, mainly before 10pm.  Patchy blowing snow before 3am. Mostly cloudy, with a low around 9. Wind chill values as low as -6. Breezy, with a west wind 15 to 25 mph, with gusts as high as 40 mph.  Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 9 °F

    Snow Showers
    Likely and
    Patchy
    Blowing Snow

  • Thursday

    Thursday: A 20 percent chance of snow showers after 3pm.  Increasing clouds, with a high near 20. Wind chill values as low as -6. West wind around 15 mph, with gusts as high as 30 mph.

    High: 20 °F

    Sunny then
    Slight Chance
    Snow Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -13. West northwest wind around 15 mph, with gusts as high as 25 mph.

    Low: -13 °F

    Partly Cloudy

  • Friday

    Friday: Sunny and cold, with a high near -5.

    High: -5 °F

    Cold

  • Friday Night

    Friday Night: Mostly cloudy, with a low around -14.

    Low: -14 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny and cold, with a high near 3.

    High: 3 °F

    Cold

  • Saturday Night

    Saturday Night: A chance of snow.  Mostly cloudy, with a low around -4.

    Low: -4 °F

    Chance Snow

Detailed Forecast

Overnight
Snow likely, mainly before 5am. Cloudy, with a steady temperature around 20. South southeast wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of 1 to 3 inches possible.
Wednesday
A chance of snow before 10am, then a chance of snow showers after 5pm. Mostly cloudy, with a high near 26. West wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Wednesday Night
Snow showers likely, mainly before 10pm. Patchy blowing snow before 3am. Mostly cloudy, with a low around 9. Wind chill values as low as -6. Breezy, with a west wind 15 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Thursday
A 20 percent chance of snow showers after 3pm. Increasing clouds, with a high near 20. Wind chill values as low as -6. West wind around 15 mph, with gusts as high as 30 mph.
Thursday Night
Partly cloudy, with a low around -13. West northwest wind around 15 mph, with gusts as high as 25 mph.
Friday
Sunny and cold, with a high near -5.
Friday Night
Mostly cloudy, with a low around -14.
Saturday
Partly sunny and cold, with a high near 3.
Saturday Night
A chance of snow. Mostly cloudy, with a low around -4.
Sunday
A chance of snow. Mostly cloudy, with a high near 11.
Sunday Night
Partly cloudy, with a low around -4.
Monday
Sunny, with a high near 13.
Monday Night
Partly cloudy, with a low around 2.
Tuesday
Partly sunny, with a high near 21.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Mc Cullom Lake IL
 42.36°N 88.29°W
2:17 am CST Jan 21, 2026
3am CST Jan 21, 2026-6pm CST Jan 27, 2026
 
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Additional Resources

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Hourly Weather Forecast

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