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.

Partly Cloudy

32°F

0°C

Humidity 45%
Wind Speed W 10 G 22 mph
Barometer 29.67 in (1005.8 mb)
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 25 Feb 10:51 am CST
Extended Forecast for

Wonder Lake IL

  • Today

    Today: Sunny, with a high near 32. West northwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 32 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 16. West northwest wind around 5 mph becoming calm.

    Low: 16 °F

    Mostly Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 41. Light south southwest wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 15 mph.

    High: 41 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 29. Southwest wind around 5 mph, with gusts as high as 15 mph.

    Low: 29 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 59. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 59 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

  • Saturday

    Saturday: A 50 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 35.

    High: 35 °F

    Slight Chance
    Snow then
    Chance Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 17.

    Low: 17 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 30.

    High: 30 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 32. West northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 16. West northwest wind around 5 mph becoming calm.
Thursday
Increasing clouds, with a high near 41. Light south southwest wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 15 mph.
Thursday Night
Mostly clear, with a low around 29. Southwest wind around 5 mph, with gusts as high as 15 mph.
Friday
Sunny, with a high near 59. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Friday Night
Partly cloudy, with a low around 27.
Saturday
A 50 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 35.
Saturday Night
Mostly cloudy, with a low around 17.
Sunday
Partly sunny, with a high near 30.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 19.
Monday
Partly sunny, with a high near 33.
Monday Night
Mostly cloudy, with a low around 18.
Tuesday
A chance of snow. Partly sunny, with a high near 39.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Wonder Lake IL
 42.38°N 88.35°W
Last Update:
9:21 am CST Feb 25, 2026
Forecast Valid:
10am CST Feb 25, 2026-6pm CST Mar 3, 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