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Hazardous Weather Conditions
Current conditions at
Chicago/Waukegan Regional Airport (KUGN)
Lat: 42.43°NLon: 87.86°WElev: 709ft.
Light Rain Fog/Mist
37°F
3°C
| Humidity | 100% |
| Wind Speed | NE 3 mph |
| Barometer | 30.03 in (1018.1 mb) |
| Dewpoint | 37°F (3°C) |
| Visibility | 1.25 mi |
| Last update | 4 Mar 7:51 pm CST |
Extended Forecast for
Zion IL
Tonight

Low: 37 °F
Scattered
Showers and
Patchy FogThursday

High: 40 °F
Scattered
Showers and
Areas FogThursday Night
Low: 38 °F
Areas Fog
then Isolated
Showers and
Areas FogFriday

High: 61 °F
Showers and
Areas FogFriday Night
Low: 49 °F
Showers
Likely then
ShowersSaturday
High: 55 °F
Chance
Showers then
Partly SunnySaturday Night

Low: 37 °F
Partly Cloudy
Sunday

High: 57 °F
Mostly Sunny
Sunday Night

Low: 44 °F
Mostly Clear
Detailed Forecast
Tonight
Scattered showers, mainly before midnight. Patchy fog. Otherwise, cloudy, with a low around 37. Northeast wind around 5 mph. Chance of precipitation is 30%.
Thursday
Scattered showers, mainly before noon. Areas of fog. Otherwise, cloudy, with a high near 40. North northeast wind 5 to 10 mph. Chance of precipitation is 30%.
Thursday Night
Isolated showers after 3am. Areas of fog. Otherwise, cloudy, with a low around 38. North northeast wind around 5 mph becoming southeast after midnight. Chance of precipitation is 20%.
Friday
Showers and thunderstorms likely before noon, then showers and possibly a thunderstorm between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Areas of fog before 3pm. High near 61. Southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Friday Night
A slight chance of showers and thunderstorms, then showers and possibly a thunderstorm after 9pm. Low around 49. South southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
Saturday
A 30 percent chance of showers before noon. Partly sunny, with a high near 55.
Saturday Night
Partly cloudy, with a low around 37.
Sunday
Mostly sunny, with a high near 57.
Sunday Night
Mostly clear, with a low around 44.
Monday
Sunny, with a high near 67.
Monday Night
A chance of showers. Partly cloudy, with a low around 45.
Tuesday
Showers likely. Mostly cloudy, with a high near 58.
Tuesday Night
Showers. Cloudy, with a low around 35.
Wednesday
A chance of rain and snow showers. Mostly cloudy, with a high near 44. Breezy.
Additional Forecasts and Information
Basemap Options
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ABOUT THIS FORECAST
Point Forecast:
Zion IL
42.45°N 87.81°W
42.45°N 87.81°W
8:36 pm CST Mar 4, 2026
8pm CST Mar 4, 2026-6pm CDT Mar 11, 2026



