Current conditions at
Chicago/Waukegan Regional Airport (KUGN)
Lat: 42.43°NLon: 87.86°WElev: 709ft.
Fair
58°F
14°C
| Humidity | 58% |
| Wind Speed | W 13 mph |
| Barometer | 29.74 in (1007.3 mb) |
| Dewpoint | 43°F (6°C) |
| Visibility | 10.00 mi |
| Last update | 20 Mar 8:51 am CDT |
Extended Forecast for
Zion IL
Today

High: 60 °F⇓
Mostly Cloudy
Tonight

Low: 37 °F
Mostly Cloudy
Saturday

High: 54 °F
Partly Sunny
Saturday Night

Low: 44 °F
Partly Cloudy
Sunday

High: 48 °F
Chance
Showers and
BreezySunday Night

Low: 32 °F
Mostly Cloudy
Monday

High: 40 °F
Mostly Sunny
Monday Night

Low: 32 °F
Mostly Cloudy
Tuesday

High: 50 °F
Mostly Cloudy
Detailed Forecast
Today
Mostly cloudy, with a temperature rising to near 60 by noon, then falling to around 44 during the remainder of the day. West southwest wind 10 to 15 mph becoming north northeast in the afternoon. Winds could gust as high as 20 mph.
Tonight
Mostly cloudy, with a low around 37. North northeast wind 5 to 10 mph becoming east after midnight. Winds could gust as high as 15 mph.
Saturday
Partly sunny, with a high near 54. East wind 5 to 15 mph becoming south in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 44. Southwest wind around 10 mph, with gusts as high as 15 mph.
Sunday
A 30 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 48. Breezy, with a north wind 10 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Mostly cloudy, with a low around 32.
Monday
Mostly sunny, with a high near 40.
Monday Night
Mostly cloudy, with a low around 32.
Tuesday
Mostly cloudy, with a high near 50.
Tuesday Night
Mostly cloudy, with a low around 35.
Wednesday
Partly sunny, with a high near 47.
Wednesday Night
Partly cloudy, with a low around 39.
Thursday
A chance of showers. Partly sunny, with a high near 55.
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
9:01 am CDT Mar 20, 2026
9am CDT Mar 20, 2026-6pm CDT Mar 26, 2026


