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.

Overcast

56°F

13°C

Humidity 87%
Wind Speed W 12 G 24 mph
Barometer 29.79 in (1008.6 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 16 Oct 12:51 am CDT
Extended Forecast for

Wonder Lake IL

  • Overnight

    Overnight: Cloudy, with a low around 48. West northwest wind around 15 mph, with gusts as high as 25 mph.

    Low: 48 °F

    Cloudy

  • Friday

    Friday: Showers likely, mainly after 1pm. Cloudy, with a high near 51. Breezy, with a north wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 51 °F

    Slight Chance
    Showers then
    Showers
    Likely and
    Breezy

  • Friday Night

    Friday Night: Areas of frost after 4am. Otherwise, mostly cloudy, then gradually becoming clear, with a low around 31. North wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 25 mph.

    Low: 31 °F

    Partly Cloudy
    then Areas
    Frost

  • Saturday

    Saturday: Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 55. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 55 °F

    Frost then
    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 34. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 34 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

Detailed Forecast

Overnight
Cloudy, with a low around 48. West northwest wind around 15 mph, with gusts as high as 25 mph.
Friday
Showers likely, mainly after 1pm. Cloudy, with a high near 51. Breezy, with a north wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Areas of frost after 4am. Otherwise, mostly cloudy, then gradually becoming clear, with a low around 31. North wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 25 mph.
Saturday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 55. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Saturday Night
Clear, with a low around 34. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Sunday
Sunny, with a high near 62.
Sunday Night
Mostly clear, with a low around 40.
Monday
Mostly sunny, with a high near 67.
Monday Night
Partly cloudy, with a low around 42.
Tuesday
Mostly sunny, with a high near 70.
Tuesday Night
Mostly clear, with a low around 44.
Wednesday
Sunny, with a high near 71.
Wednesday Night
Partly cloudy, with a low around 48.
Thursday
Mostly sunny, with a high near 72.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Wonder Lake IL
 42.38°N 88.35°W
Last Update:
12:21 am CDT Oct 16, 2026
Forecast Valid:
1am CDT Oct 16, 2026-6pm CDT Oct 22, 2026
 
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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