National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fair

15°F

-9°C

Humidity 32%
Wind Speed Calm
Barometer 30.35 in (1030.2 mb)
Dewpoint -10°F (-23°C)
Visibility 10.00 mi
Last update 4 Dec 12:51 pm CST
Extended Forecast for

Wonder Lake IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 17. Wind chill values as low as -3. Calm wind becoming southwest around 5 mph.

    High: 17 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a temperature falling to near 1 by 8pm, then rising to around 10 during the remainder of the night. Wind chill values as low as -14. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 1 °F⇑

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 27. Wind chill values as low as -5. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 27 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 40 percent chance of snow before midnight. Mostly cloudy, with a low around 19. Southwest wind around 10 mph becoming west northwest after midnight. Winds could gust as high as 20 mph.

    Low: 19 °F

    Chance Snow
    then Mostly
    Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 27. West northwest wind around 5 mph, with gusts as high as 15 mph.

    High: 27 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 11.

    Low: 11 °F

    Chance Snow

  • Sunday

    Sunday: A 30 percent chance of snow before noon. Mostly sunny, with a high near 21.

    High: 21 °F

    Chance Snow
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 4.

    Low: 4 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 22.

    High: 22 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 17. Wind chill values as low as -3. Calm wind becoming southwest around 5 mph.
Tonight
Partly cloudy, with a temperature falling to near 1 by 8pm, then rising to around 10 during the remainder of the night. Wind chill values as low as -14. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Friday
Partly sunny, with a high near 27. Wind chill values as low as -5. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night
A 40 percent chance of snow before midnight. Mostly cloudy, with a low around 19. Southwest wind around 10 mph becoming west northwest after midnight. Winds could gust as high as 20 mph.
Saturday
Partly sunny, with a high near 27. West northwest wind around 5 mph, with gusts as high as 15 mph.
Saturday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 11.
Sunday
A 30 percent chance of snow before noon. Mostly sunny, with a high near 21.
Sunday Night
Mostly cloudy, with a low around 4.
Monday
Partly sunny, with a high near 22.
Monday Night
Snow likely, mainly after midnight. Mostly cloudy, with a low around 13.
Tuesday
A chance of snow. Mostly cloudy, with a high near 31.
Tuesday Night
Snow likely. Mostly cloudy, with a low around 19.
Wednesday
A chance of snow. Mostly cloudy, with a high near 32.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Wonder Lake IL
 42.41°N 88.34°W
Last Update:
12:05 pm CST Dec 4, 2025
Forecast Valid:
1pm CST Dec 4, 2025-6pm CST Dec 10, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation