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 78%
Wind Speed Calm
Barometer 30.51 in (1034.8 mb)
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Last update 1 Mar 8:51 pm CST
Extended Forecast for

Wonder Lake IL

  • Tonight

    Tonight: Mostly clear, with a low around 19. East wind around 5 mph, with gusts as high as 10 mph.

    Low: 19 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 43. Southeast wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 43 °F

    Sunny

  • Monday Night

    Monday Night: Isolated showers after 3am. Mostly cloudy, with a low around 31. East southeast wind around 5 mph. Chance of precipitation is 20%.

    Low: 31 °F

    Mostly Cloudy
    then Isolated
    Showers

  • Tuesday

    Tuesday: Showers likely, mainly before noon. Cloudy, with a high near 43. East wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 60%.

    High: 43 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 34. East northeast wind around 5 mph, with gusts as high as 10 mph.

    Low: 34 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 47. Chance of precipitation is 50%.

    High: 47 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm. Cloudy, with a low around 39. Chance of precipitation is 60%.

    Low: 39 °F

    Showers
    Likely

  • Thursday

    Thursday: A chance of showers. Mostly cloudy, with a high near 54.

    High: 54 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 19. East wind around 5 mph, with gusts as high as 10 mph.
Monday
Sunny, with a high near 43. Southeast wind 5 to 10 mph, with gusts as high as 15 mph.
Monday Night
Isolated showers after 3am. Mostly cloudy, with a low around 31. East southeast wind around 5 mph. Chance of precipitation is 20%.
Tuesday
Showers likely, mainly before noon. Cloudy, with a high near 43. East wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 60%.
Tuesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 34. East northeast wind around 5 mph, with gusts as high as 10 mph.
Wednesday
A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 47. Chance of precipitation is 50%.
Wednesday Night
Showers likely and possibly a thunderstorm. Cloudy, with a low around 39. Chance of precipitation is 60%.
Thursday
A chance of showers. Mostly cloudy, with a high near 54.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 41.
Friday
Showers. Cloudy, with a high near 67.
Friday Night
Showers likely. Mostly cloudy, with a low around 39.
Saturday
A chance of showers. Mostly cloudy, with a high near 56.
Saturday Night
Partly cloudy, with a low around 35.
Sunday
Sunny, with a high near 62.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Wonder Lake IL
 42.38°N 88.35°W
Last Update:
8:26 pm CST Mar 1, 2026
Forecast Valid:
9pm CST Mar 1, 2026-6pm CDT Mar 8, 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