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.

Fair

52°F

11°C

Humidity 55%
Wind Speed W 16 G 26 mph
Barometer 29.47 in (998.5 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 13 Jan 1:51 pm CST
Extended Forecast for

Mc Cullom Lake IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 49. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 49 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Isolated snow showers before 3am, then scattered flurries with isolated snow showers between 3am and 4am, then scattered snow showers after 4am. Mostly cloudy, with a low around 23. Blustery, with a west northwest wind 10 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

    Low: 23 °F

    Mostly Cloudy
    then
    Scattered
    Snow Showers
    and Blustery

  • Wednesday

    Wednesday: Scattered snow showers before 8am, then scattered flurries with isolated snow showers between 8am and noon, then scattered flurries after noon. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 21 by 10am. Blustery, with a north northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.

    High: 25 °F⇓

    Blustery.
    Scattered
    Snow Showers
    then
    Scattered
    Flurries

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 12. Wind chill values as low as 1. North northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 12 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 25. Northwest wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph.

    High: 25 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Snow. Low around 20. Chance of precipitation is 80%.

    Low: 20 °F

    Snow

  • Friday

    Friday: Snow likely before noon, then snow showers likely after noon. Mostly cloudy, with a high near 35. Chance of precipitation is 70%.

    High: 35 °F

    Snow Likely

  • Friday Night

    Friday Night: A chance of snow showers. Mostly cloudy, with a low around 13.

    Low: 13 °F

    Chance Snow
    Showers

  • Saturday

    Saturday: A chance of snow showers. Mostly cloudy, with a high near 18.

    High: 18 °F

    Chance Snow
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 49. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.
Tonight
Isolated snow showers before 3am, then scattered flurries with isolated snow showers between 3am and 4am, then scattered snow showers after 4am. Mostly cloudy, with a low around 23. Blustery, with a west northwest wind 10 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Wednesday
Scattered snow showers before 8am, then scattered flurries with isolated snow showers between 8am and noon, then scattered flurries after noon. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 21 by 10am. Blustery, with a north northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.
Wednesday Night
Partly cloudy, with a low around 12. Wind chill values as low as 1. North northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday
Mostly sunny, with a high near 25. Northwest wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph.
Thursday Night
Snow. Low around 20. Chance of precipitation is 80%.
Friday
Snow likely before noon, then snow showers likely after noon. Mostly cloudy, with a high near 35. Chance of precipitation is 70%.
Friday Night
A chance of snow showers. Mostly cloudy, with a low around 13.
Saturday
A chance of snow showers. Mostly cloudy, with a high near 18.
Saturday Night
Mostly cloudy, with a low around 5.
Sunday
Partly sunny, with a high near 16.
Sunday Night
Mostly cloudy, with a low around 4.
M.L.King Day
Partly sunny, with a high near 15.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mc Cullom Lake IL
 42.36°N 88.29°W
Last Update:
2:01 pm CST Jan 13, 2026
Forecast Valid:
2pm CST Jan 13, 2026-6pm CST Jan 19, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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