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

21°F

-6°C

Humidity 88%
Wind Speed Calm
Barometer 30.19 in (1023.9 mb)
Dewpoint 18°F (-8°C)
Visibility 9.00 mi
Last update 9 Feb 6:51 am CST
Extended Forecast for

Wonder Lake IL

  • Today

    Today: Increasing clouds, with a high near 37. South wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 37 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Mostly cloudy, with a temperature rising to around 37 by 1am. South wind around 10 mph becoming west northwest after midnight. Winds could gust as high as 20 mph.

    Low: 33 °F⇑

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 40. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 40 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 23. Northwest wind around 10 mph, with gusts as high as 15 mph.

    Low: 23 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 35. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 35 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 22.

    Low: 22 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of snow after noon. Mostly cloudy, with a high near 36.

    High: 36 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 23.

    Low: 23 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 39.

    High: 39 °F

    Partly Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 37. South wind 5 to 10 mph, with gusts as high as 15 mph.
Tonight
Mostly cloudy, with a temperature rising to around 37 by 1am. South wind around 10 mph becoming west northwest after midnight. Winds could gust as high as 20 mph.
Tuesday
Partly sunny, with a high near 40. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Partly cloudy, with a low around 23. Northwest wind around 10 mph, with gusts as high as 15 mph.
Wednesday
Mostly sunny, with a high near 35. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday Night
Partly cloudy, with a low around 22.
Thursday
A 20 percent chance of snow after noon. Mostly cloudy, with a high near 36.
Thursday Night
Mostly cloudy, with a low around 23.
Friday
Partly sunny, with a high near 39.
Friday Night
Mostly cloudy, with a low around 24.
Saturday
Partly sunny, with a high near 40.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 26.
Sunday
A chance of snow. Mostly sunny, with a high near 40.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Wonder Lake IL
 42.38°N 88.35°W
Last Update:
5:36 am CST Feb 9, 2026
Forecast Valid:
6am CST Feb 9, 2026-6pm CST Feb 15, 2026
 
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