Hazardous Weather Conditions
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
NOW until 10:00am Fri

Dense Fog Advisory
Tonight

Low: 50 °F
Fog
Friday
High: 79 °F
Fog then
Chance
T-storms and
BreezyFriday Night

Low: 40 °F
T-storms
Saturday

High: 52 °F
Slight Chance
Showers and
BreezySaturday Night

Low: 32 °F
Mostly Clear
Sunday

High: 49 °F
Mostly Sunny
Sunday Night

Low: 29 °F
Mostly Clear
then Areas
FrostMonday

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.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Wonder Lake IL
42.38°N 88.35°W
42.38°N 88.35°W
9:45 pm CDT Apr 16, 2026
11pm CDT Apr 16, 2026-6pm CDT Apr 23, 2026



