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

37°F

3°C

Humidity 76%
Wind Speed SW 12 mph
Barometer 30.01 in (1017.4 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 12 Jan 5:51 pm CST
Extended Forecast for

Wonder Lake IL

  • Tonight

    Tonight: Increasing clouds, with a low around 34. West southwest wind 10 to 15 mph.

    Low: 34 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 48. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 48 °F

    Decreasing
    Clouds and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 24. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 24 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of snow showers, mainly before noon. Mostly cloudy, with a high near 25. Blustery, with a north northwest wind 20 to 25 mph, with gusts as high as 35 mph.

    High: 25 °F

    Chance Snow
    Showers and
    Blustery

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 11. North northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 11 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 24.

    High: 24 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Snow likely, mainly after midnight. Mostly cloudy, with a low around 19. Chance of precipitation is 60%.

    Low: 19 °F

    Snow Likely

  • Friday

    Friday: Snow likely. Cloudy, with a high near 31.

    High: 31 °F

    Snow Likely

  • Friday Night

    Friday Night: A chance of snow. Mostly cloudy, with a low around 14.

    Low: 14 °F

    Chance Snow

Detailed Forecast

Tonight
Increasing clouds, with a low around 34. West southwest wind 10 to 15 mph.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 48. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.
Tuesday Night
Mostly cloudy, with a low around 24. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday
A 40 percent chance of snow showers, mainly before noon. Mostly cloudy, with a high near 25. Blustery, with a north northwest wind 20 to 25 mph, with gusts as high as 35 mph.
Wednesday Night
Partly cloudy, with a low around 11. North northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday
Mostly sunny, with a high near 24.
Thursday Night
Snow likely, mainly after midnight. Mostly cloudy, with a low around 19. Chance of precipitation is 60%.
Friday
Snow likely. Cloudy, with a high near 31.
Friday Night
A chance of snow. Mostly cloudy, with a low around 14.
Saturday
A chance of snow. Mostly cloudy, with a high near 18.
Saturday Night
Mostly cloudy, with a low around 4.
Sunday
Mostly cloudy, with a high near 15.
Sunday Night
Mostly cloudy, with a low around 4.
M.L.King Day
Partly sunny, with a high near 17.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Wonder Lake IL
 42.38°N 88.35°W
Last Update:
4:41 pm CST Jan 12, 2026
Forecast Valid:
6pm CST Jan 12, 2026-6pm CST Jan 19, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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