Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fair

15°F

-9°C

Humidity 49%
Wind Speed SW 14 G 22 mph
Barometer 30.28 in (1028.3 mb)
Dewpoint -1°F (-18°C)
Visibility 10.00 mi
Wind Chill0°F (-18°C)
Last update 20 Jan 1:51 pm CST
Extended Forecast for

Wonder Lake IL

Winter Weather Advisory January 20, 08:00pm until January 21, 06:00am
Click here for hazard details and duration
Winter Weather Advisory
  • This Afternoon

    This Afternoon: Partly sunny, with a high near 16. Southwest wind 5 to 10 mph.

    High: 16 °F

    Partly Sunny

  • Tonight

    Tonight: Snow, mainly after 10pm.  Temperature rising to around 19 by 4am. South wind around 5 mph becoming west southwest after midnight.  Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

    Low: 15 °F

    Snow Likely
    then Snow

  • Wednesday

    Wednesday: A 20 percent chance of snow before 9am.  Mostly cloudy, with a high near 25. West southwest wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 25 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Snow showers likely before midnight.  Patchy blowing snow before 3am. Mostly cloudy, with a low around 8. Wind chill values as low as -4. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.  Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 8 °F

    Snow Showers
    Likely and
    Patchy
    Blowing Snow

  • Thursday

    Thursday: Mostly sunny, with a high near 17. West wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 17 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -11.

    Low: -11 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny and cold, with a high near -3.

    High: -3 °F

    Cold

  • Friday Night

    Friday Night: Partly cloudy, with a low around -12.

    Low: -12 °F

    Partly Cloudy

  • Saturday

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

    High: 3 °F

    Cold

Detailed Forecast

This Afternoon
Partly sunny, with a high near 16. Southwest wind 5 to 10 mph.
Tonight
Snow, mainly after 10pm. Temperature rising to around 19 by 4am. South wind around 5 mph becoming west southwest after midnight. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.
Wednesday
A 20 percent chance of snow before 9am. Mostly cloudy, with a high near 25. West southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
Snow showers likely before midnight. Patchy blowing snow before 3am. Mostly cloudy, with a low around 8. Wind chill values as low as -4. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Thursday
Mostly sunny, with a high near 17. West wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday Night
Partly cloudy, with a low around -11.
Friday
Mostly sunny and cold, with a high near -3.
Friday Night
Partly cloudy, with a low around -12.
Saturday
Partly sunny and cold, with a high near 3.
Saturday Night
A chance of snow. Mostly cloudy, with a low around -6.
Sunday
Mostly sunny, with a high near 13.
Sunday Night
Partly cloudy, with a low around -3.
Monday
Mostly sunny, with a high near 13.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Wonder Lake IL
 42.38°N 88.35°W
1:17 pm CST Jan 20, 2026
2pm CST Jan 20, 2026-6pm CST Jan 26, 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