Current conditions at
Chicago/Waukegan Regional Airport (KUGN)
Lat: 42.43°NLon: 87.86°WElev: 709ft.
Fair
59°F
15°C
| Humidity | 54% |
| Wind Speed | S 10 mph |
| Barometer | 29.73 in (1006.9 mb) |
| Dewpoint | 42°F (6°C) |
| Visibility | 10.00 mi |
| Last update | 21 Mar 2:51 pm CDT |
Extended Forecast for
Chicago / Waukegan, Waukegan Regional Airport IL
This Afternoon

High: 72 °F
Mostly Sunny
Tonight
Low: 40 °F
Mostly Cloudy
then Patchy
FogSunday

High: 41 °F⇓
Slight Chance
Showers and
Patchy FogSunday Night

Low: 28 °F
Mostly Cloudy
Monday

High: 42 °F
Sunny
Monday Night

Low: 31 °F
Partly Cloudy
Tuesday

High: 52 °F
Mostly Cloudy
Tuesday Night

Low: 38 °F
Mostly Cloudy
Wednesday

High: 48 °F
Mostly Cloudy
Detailed Forecast
This Afternoon
Mostly sunny, with a high near 72. South southwest wind around 15 mph, with gusts as high as 30 mph.
Tonight
Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 40. Southwest wind 5 to 15 mph becoming north northeast after midnight. Winds could gust as high as 25 mph.
Sunday
A 20 percent chance of showers before 4pm. Patchy fog before 4pm. Otherwise, mostly cloudy, with a temperature falling to around 38 by 4pm. Breezy, with a north wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Mostly cloudy, with a low around 28. North wind 10 to 15 mph, with gusts as high as 25 mph.
Monday
Sunny, with a high near 42. North wind around 5 mph becoming east northeast in the afternoon. Winds could gust as high as 10 mph.
Monday Night
Partly cloudy, with a low around 31.
Tuesday
Mostly cloudy, with a high near 52.
Tuesday Night
Mostly cloudy, with a low around 38.
Wednesday
Mostly cloudy, with a high near 48.
Wednesday Night
Mostly cloudy, with a low around 43.
Thursday
Mostly cloudy, with a high near 57.
Thursday Night
Mostly cloudy, with a low around 31.
Friday
Partly sunny, with a high near 42.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Chicago / Waukegan, Waukegan Regional Airport IL
42.41°N 87.87°W
42.41°N 87.87°W
3:06 pm CDT Mar 21, 2026
3pm CDT Mar 21, 2026-6pm CDT Mar 27, 2026


