Hazardous Weather Conditions
Current conditions at
Chicago/Waukegan Regional Airport (KUGN)
Lat: 42.43°NLon: 87.86°WElev: 709ft.
Mostly Cloudy
48°F
9°C
| Humidity | 50% |
| Wind Speed | W 13 G 24 mph |
| Barometer | 29.88 in (1011.6 mb) |
| Dewpoint | 30°F (-1°C) |
| Visibility | 10.00 mi |
| Wind Chill | 43°F (6°C) |
| Last update | 18 Apr 2:51 pm CDT |
Extended Forecast for
Zion IL
Freeze Watch April 20, 12:00am until April 20, 09:00am
Frost Advisory April 19, 12:00am until April 19, 09:00am
This Afternoon

High: 46 °F
Partly Sunny
and BreezyTonight

Low: 36 °F
Mostly Clear
then Patchy
FrostSunday
High: 48 °F
Slight Chance
Rain/Snow
then Chance
ShowersSunday Night

Low: 33 °F
Partly Cloudy
then FrostMonday

High: 47 °F
Frost then
SunnyMonday Night

Low: 41 °F
Mostly Cloudy
Tuesday

High: 68 °F
Mostly Sunny
Tuesday Night

Low: 46 °F
Partly Cloudy
Wednesday

High: 60 °F
Mostly Sunny
Detailed Forecast
This Afternoon
Partly sunny, with a steady temperature around 46. Breezy, with a west wind around 20 mph, with gusts as high as 30 mph.
Tonight
Patchy frost between 1am and 2am. Otherwise, mostly clear, with a low around 36. West wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday
A slight chance of rain and snow showers before 8am, then a chance of rain showers. Partly sunny, with a high near 48. West southwest wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 30%.
Sunday Night
Widespread frost, mainly after 4am. Otherwise, partly cloudy, with a low around 33. North northwest wind 5 to 10 mph becoming northeast after midnight. Winds could gust as high as 15 mph.
Monday
Widespread frost, mainly before 7am. Otherwise, sunny, with a high near 47. Southeast wind 5 to 10 mph.
Monday Night
Mostly cloudy, with a low around 41.
Tuesday
Mostly sunny, with a high near 68.
Tuesday Night
Partly cloudy, with a low around 46.
Wednesday
Mostly sunny, with a high near 60.
Wednesday Night
Partly cloudy, with a low around 47.
Thursday
Mostly sunny, with a high near 71.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 56.
Friday
A chance of showers. Mostly cloudy, with a high near 66.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Zion IL
42.45°N 87.81°W
42.45°N 87.81°W
2:46 pm CDT Apr 18, 2026
3pm CDT Apr 18, 2026-6pm CDT Apr 24, 2026



