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.

Fair

1°F

-17°C

Humidity 72%
Wind Speed W 8 mph
Barometer 30.30 in (1029.1 mb)
Dewpoint -6°F (-21°C)
Visibility 10.00 mi
Wind Chill-13°F (-25°C)
Last update 20 Jan 3:51 am 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

  • Today

    Today: Increasing clouds, with a high near 18. Wind chill values as low as -15. West southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 18 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Snow, mainly after 10pm. Temperature rising to around 19 by 4am. South southeast wind around 5 mph, with gusts as high as 10 mph. 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

Today
Increasing clouds, with a high near 18. Wind chill values as low as -15. West southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Tonight
Snow, mainly after 10pm. Temperature rising to around 19 by 4am. South southeast wind around 5 mph, with gusts as high as 10 mph. 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.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Wonder Lake IL
 42.38°N 88.35°W
Last Update:
4:06 am CST Jan 20, 2026
Forecast Valid:
4am CST Jan 20, 2026-6pm CST Jan 26, 2026
 
Forecast Discussion
 
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Additional Resources

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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