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

29°F

-2°C

Humidity 72%
Wind Speed Calm
Barometer 29.90 in (1014.0 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 6 Dec 8:51 am CST
Extended Forecast for

2 Miles SSW Round Lake Park IL

Winter Weather Advisory December 7, 12:00am until December 7, 09:00am
Click here for hazard details and duration
Winter Weather Advisory

  • Today

    Today: Mostly cloudy, with a high near 26. West northwest wind 5 to 10 mph becoming light and variable in the afternoon.

    High: 26 °F

    Mostly Cloudy

  • Tonight

    Tonight: Snow, mainly after midnight. Low around 20. Light east northeast wind becoming north northeast 5 to 10 mph after midnight. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    Low: 20 °F

    Chance Snow
    then Snow

  • Sunday

    Sunday: A 40 percent chance of snow before noon. Cloudy, then gradually becoming mostly sunny, with a temperature rising to near 24 by 10am, then falling to around 16 during the remainder of the day. North wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 24 °F⇓

    Chance Snow
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of snow showers. Mostly cloudy, with a low around 10. Wind chill values as low as 1. North wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 10 °F

    Chance Snow
    Showers

  • Monday

    Monday: A 20 percent chance of snow showers before noon. Partly sunny, with a high near 24. West northwest wind 5 to 10 mph becoming south southwest in the morning.

    High: 24 °F

    Slight Chance
    Snow Showers
    then Partly
    Sunny

  • Monday Night

    Monday Night: A 40 percent chance of snow, mainly after midnight. Mostly cloudy, with a low around 13.

    Low: 13 °F

    Chance Snow

  • Tuesday

    Tuesday: A slight chance of snow before noon, then a slight chance of rain and snow. Mostly cloudy, with a high near 37. Chance of precipitation is 20%.

    High: 37 °F

    Slight Chance
    Snow then
    Slight Chance
    Rain/Snow

  • Tuesday Night

    Tuesday Night: Rain and snow, becoming all rain after midnight. Cloudy, with a low around 31.

    Low: 31 °F

    Rain/Snow
    then Rain

  • Wednesday

    Wednesday: Rain and snow likely before noon, then a chance of snow. Mostly cloudy, with a high near 34.

    High: 34 °F

    Rain/Snow
    Likely then
    Chance Snow

Detailed Forecast

Today
Mostly cloudy, with a high near 26. West northwest wind 5 to 10 mph becoming light and variable in the afternoon.
Tonight
Snow, mainly after midnight. Low around 20. Light east northeast wind becoming north northeast 5 to 10 mph after midnight. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Sunday
A 40 percent chance of snow before noon. Cloudy, then gradually becoming mostly sunny, with a temperature rising to near 24 by 10am, then falling to around 16 during the remainder of the day. North wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday Night
A 30 percent chance of snow showers. Mostly cloudy, with a low around 10. Wind chill values as low as 1. North wind 5 to 10 mph, with gusts as high as 15 mph.
Monday
A 20 percent chance of snow showers before noon. Partly sunny, with a high near 24. West northwest wind 5 to 10 mph becoming south southwest in the morning.
Monday Night
A 40 percent chance of snow, mainly after midnight. Mostly cloudy, with a low around 13.
Tuesday
A slight chance of snow before noon, then a slight chance of rain and snow. Mostly cloudy, with a high near 37. Chance of precipitation is 20%.
Tuesday Night
Rain and snow, becoming all rain after midnight. Cloudy, with a low around 31.
Wednesday
Rain and snow likely before noon, then a chance of snow. Mostly cloudy, with a high near 34.
Wednesday Night
A chance of snow before midnight. Mostly cloudy, with a low around 13.
Thursday
A chance of snow. Partly sunny, with a high near 23.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 11.
Friday
Partly sunny, with a high near 19.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Round Lake Park IL
 42.29°N 88.06°W
Last Update:
9:06 am CST Dec 6, 2025
Forecast Valid:
9am CST Dec 6, 2025-6pm CST Dec 12, 2025
 
Forecast Discussion
 
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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