Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fog

46°F

8°C

Humidity 100%
Wind Speed Calm
Barometer 29.95 in (1014.0 mb)
Dewpoint 46°F (8°C)
Visibility 0.50 mi
Last update 16 Apr 10:51 pm CDT
Extended Forecast for

Wonder Lake IL

Dense Fog Advisory April 16, 11:27pm until April 17, 10:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory April 16, 11:27pm until April 17, 10:00am

    NOW until 10:00am Fri

    Dense Fog Advisory

  • Tonight

    Low: 50 °F

    Fog

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 4pm.  Widespread fog, mainly before 8am.  Otherwise, partly sunny, with a high near 79. Breezy, with a south wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 79 °F

    Fog then
    Chance
    T-storms and
    Breezy

  • Friday Night

    Friday Night: Showers and thunderstorms before 10pm, then showers and possibly a thunderstorm, mainly after 10pm.  Low around 40. South wind around 15 mph becoming west after midnight. Winds could gust as high as 25 mph.  Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 40 °F

    T-storms

  • Saturday

    Saturday: A 20 percent chance of showers before 1pm.  Cloudy, then gradually becoming mostly sunny, with a high near 52. Breezy, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 52 °F

    Slight Chance
    Showers and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 32. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 32 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Areas of frost after 1am.  Otherwise, mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear
    then Areas
    Frost

  • Monday

    Monday: Areas of frost before 9am.  Otherwise, sunny, with a high near 57.

    High: 57 °F

    Areas Frost
    then Sunny

Detailed Forecast

Tonight
Widespread fog. Otherwise, mostly cloudy, with a low around 50. Southeast wind around 5 mph, with gusts as high as 10 mph.
Friday
A 30 percent chance of showers and thunderstorms after 4pm. Widespread fog, mainly before 8am. Otherwise, partly sunny, with a high near 79. Breezy, with a south wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Friday Night
Showers and thunderstorms before 10pm, then showers and possibly a thunderstorm, mainly after 10pm. Low around 40. South wind around 15 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
A 20 percent chance of showers before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 52. Breezy, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Saturday Night
Mostly clear, with a low around 32. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday
Mostly sunny, with a high near 49.
Sunday Night
Areas of frost after 1am. Otherwise, mostly clear, with a low around 29.
Monday
Areas of frost before 9am. Otherwise, sunny, with a high near 57.
Monday Night
Partly cloudy, with a low around 45.
Tuesday
Mostly sunny, with a high near 71.
Tuesday Night
Mostly clear, with a low around 46.
Wednesday
Sunny, with a high near 69.
Wednesday Night
Mostly clear, with a low around 47.
Thursday
Mostly sunny, with a high near 70.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Wonder Lake IL
 42.38°N 88.35°W
9:45 pm CDT Apr 16, 2026
11pm CDT Apr 16, 2026-6pm CDT Apr 23, 2026
 
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