Hazardous Weather Conditions
Current conditions at
Chicago/Waukegan Regional Airport (KUGN)
Lat: 42.43°NLon: 87.86°WElev: 709ft.
Fair
55°F
13°C
| Humidity | 83% |
| Wind Speed | E 8 mph |
| Barometer | 30.00 in (1015.9 mb) |
| Dewpoint | 50°F (10°C) |
| Visibility | 10.00 mi |
| Wind Chill | 53°F (12°C) |
| Last update | 23 May 6:51 pm CDT |
Extended Forecast for
Waukegan IL
Tonight
Low: 52 °F
Patchy Fog
then Chance
Showers and
Patchy FogSunday
High: 65 °F
Slight Chance
T-storms then
SunnySunday Night

Low: 57 °F
Mostly Clear
Memorial Day

High: 72 °F
Sunny
Monday Night

Low: 60 °F
Partly Cloudy
Tuesday

High: 76 °F
Mostly Sunny
Tuesday Night
Low: 59 °F
Mostly Cloudy
then Slight
Chance
ShowersWednesday

High: 68 °F
Chance
ShowersWednesday Night

Low: 57 °F
Mostly Cloudy
Detailed Forecast
Tonight
A slight chance of showers, then a chance of showers and thunderstorms after 1am. Patchy fog between 10pm and 1am. Otherwise, increasing clouds, with a low around 52. East northeast wind 5 to 10 mph becoming light and variable after midnight. Chance of precipitation is 40%.
Sunday
A slight chance of showers and thunderstorms before 8am, then a slight chance of showers between 8am and 9am. Cloudy through mid morning, then gradual clearing, with a high near 65. West wind around 5 mph becoming east in the afternoon. Winds could gust as high as 10 mph. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 57. Southeast wind around 5 mph becoming calm in the evening.
Memorial Day
Sunny, with a high near 72. South southeast wind 5 to 10 mph.
Monday Night
Partly cloudy, with a low around 60. South southeast wind around 5 mph becoming calm after midnight. Winds could gust as high as 10 mph.
Tuesday
Mostly sunny, with a high near 76.
Tuesday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 59.
Wednesday
A chance of showers before 1pm. Partly sunny, with a high near 68.
Wednesday Night
Mostly cloudy, with a low around 57.
Thursday
Partly sunny, with a high near 67.
Thursday Night
Mostly cloudy, with a low around 54.
Friday
Mostly sunny, with a high near 67.
Friday Night
Partly cloudy, with a low around 52.
Saturday
Mostly sunny, with a high near 68.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Waukegan IL
42.37°N 87.85°W
42.37°N 87.85°W
6:51 pm CDT May 23, 2026
7pm CDT May 23, 2026-6pm CDT May 30, 2026



