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

30°F

-1°C

Humidity 64%
Wind Speed N 6 mph
Barometer 30.55 in (1035.8 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 27 Mar 11:51 pm CDT
Extended Forecast for

Wonder Lake IL

  • Overnight

    Overnight: Mostly clear, with a low around 21. North northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 21 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 48. Light and variable wind becoming south southwest 10 to 15 mph in the morning. Winds could gust as high as 25 mph.

    High: 48 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 37. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 37 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 62. South southwest wind around 15 mph, with gusts as high as 25 mph.

    High: 62 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 44. South southwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 44 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60.

    Low: 60 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 72. Breezy.

    High: 72 °F

    Showers
    Likely and
    Breezy

  • Tuesday Night

    Tuesday Night: Showers likely, mainly before 1am. Mostly cloudy, with a low around 34.

    Low: 34 °F

    Showers
    Likely

Detailed Forecast

Overnight
Mostly clear, with a low around 21. North northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Saturday
Sunny, with a high near 48. Light and variable wind becoming south southwest 10 to 15 mph in the morning. Winds could gust as high as 25 mph.
Saturday Night
Mostly cloudy, with a low around 37. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday
Partly sunny, with a high near 62. South southwest wind around 15 mph, with gusts as high as 25 mph.
Sunday Night
Partly cloudy, with a low around 44. South southwest wind around 10 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 72.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60.
Tuesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 72. Breezy.
Tuesday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 34.
Wednesday
Partly sunny, with a high near 44.
Wednesday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 30.
Thursday
A chance of rain and snow showers. Mostly cloudy, with a high near 44.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 35.
Friday
Partly sunny, with a high near 55.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Wonder Lake IL
 42.39°N 88.38°W
Last Update:
12:21 am CDT Mar 28, 2026
Forecast Valid:
12am CDT Mar 28, 2026-6pm CDT Apr 3, 2026
 
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Additional Resources

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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