Hazardous Weather Conditions
Current conditions at
Chicago/Waukegan Regional Airport (KUGN)
Lat: 42.43°NLon: 87.86°WElev: 709ft.
Fog
50°F
10°C
| Humidity | 100% |
| Wind Speed | NE 6 mph |
| Barometer | 29.88 in (1011.9 mb) |
| Dewpoint | 50°F (10°C) |
| Visibility | 0.25 mi |
| Wind Chill | 48°F (9°C) |
| Last update | 16 Apr 6:51 pm CDT |
Extended Forecast for
Zion IL
Dense Fog Advisory until April 17, 10:00am
NOW until 10:00am Fri
Dense Fog Advisory
Tonight
Low: 42 °F
Dense Fog
Friday
High: 65 °F
Dense Fog
then Partly
SunnyFriday Night
Low: 42 °F
T-storms
Saturday
High: 53 °F
Slight Chance
Showers and
BreezySaturday Night
Low: 35 °F
Mostly Clear
Sunday
High: 49 °F
Mostly Sunny
Sunday Night
Low: 33 °F
Partly Cloudy
then Areas
FrostMonday
High: 51 °F
Sunny
Detailed Forecast
Tonight
Widespread dense fog, mainly after 8pm. Otherwise, mostly cloudy, with a low around 42. Northeast wind around 5 mph becoming south southeast after midnight.
Friday
Widespread dense fog, mainly before 9am. Otherwise, mostly cloudy, with a high near 65. South southeast wind 5 to 15 mph, with gusts as high as 30 mph.
Friday Night
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 10pm. Low around 42. 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 53. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.
Saturday Night
Mostly clear, with a low around 35. 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 3am. Otherwise, mostly clear, with a low around 33.
Monday
Sunny, with a high near 51.
Monday Night
Partly cloudy, with a low around 44.
Tuesday
Mostly sunny, with a high near 70.
Tuesday Night
Partly cloudy, with a low around 45.
Wednesday
Sunny, with a high near 53.
Wednesday Night
Mostly clear, with a low around 45.
Thursday
Mostly sunny, with a high near 55.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Zion IL
42.45°N 87.81°W
42.45°N 87.81°W
7:16 pm CDT Apr 16, 2026
7pm CDT Apr 16, 2026-6pm CDT Apr 23, 2026
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