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.

Overcast

76°F

24°C

Humidity 97%
Wind Speed W 6 mph
Barometer 29.97 in (1013.5 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index75°F (24°C)
Last update 16 Aug 8:51 am CDT
Extended Forecast for

Wonder Lake IL

  • Today

    Today: A 20 percent chance of showers after 2pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 82. West northwest wind 10 to 15 mph.

    High: 82 °F

    Patchy Fog
    then Slight
    Chance
    Showers

  • Tonight

    Tonight: Partly cloudy, with a low around 64. Northwest wind 5 to 10 mph.

    Low: 64 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 80. North wind 5 to 10 mph.

    High: 80 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 62. Calm wind becoming west southwest around 5 mph after midnight.

    Low: 62 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 81. West southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 81 °F

    Partly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.

    Low: 63 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A 30 percent chance of showers before 1pm. Partly sunny, with a high near 76.

    High: 76 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

Detailed Forecast

Today
A 20 percent chance of showers after 2pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 82. West northwest wind 10 to 15 mph.
Tonight
Partly cloudy, with a low around 64. Northwest wind 5 to 10 mph.
Monday
Mostly sunny, with a high near 80. North wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 62. Calm wind becoming west southwest around 5 mph after midnight.
Tuesday
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 81. West southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Wednesday
A 30 percent chance of showers before 1pm. Partly sunny, with a high near 76.
Wednesday Night
Partly cloudy, with a low around 57.
Thursday
Mostly sunny, with a high near 77.
Thursday Night
Partly cloudy, with a low around 58.
Friday
Mostly sunny, with a high near 78.
Friday Night
Partly cloudy, with a low around 61.
Saturday
Mostly sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Wonder Lake IL
 42.39°N 88.38°W
Last Update:
9:31 am CDT Aug 16, 2026
Forecast Valid:
9am CDT Aug 16, 2026-6pm CDT Aug 22, 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