Hazardous Weather Conditions
Current conditions at
Chicago/Waukegan Regional Airport (KUGN)
Lat: 42.43°NLon: 87.86°WElev: 709ft.
A Few Clouds
61°F
16°C
| Humidity | 97% |
| Wind Speed | SE 7 mph |
| Barometer | 29.73 in (1005.6 mb) |
| Dewpoint | 60°F (16°C) |
| Visibility | 10.00 mi |
| Last update | 15 Apr 4:51 am CDT |
Extended Forecast for
Zion IL
Flood Watch until April 15, 06:00am
Flood Advisory until April 15, 06:45am
NOW: Multiple hazards in effect

Click HERE for Details
Overnight

Low: 61 °F
Showers
Wednesday
High: 72 °F
Showers then
Chance
T-stormsWednesday Night

Low: 50 °F
T-storms
Thursday

High: 65 °F
Showers
LikelyThursday Night
Low: 46 °F
Slight Chance
T-storms then
Mostly CloudyFriday

High: 62 °F
Mostly Cloudy
Friday Night

Low: 48 °F
Showers
Saturday

High: 61 °F
Chance
Showers
Detailed Forecast
Overnight
Showers and possibly a thunderstorm. Steady temperature around 61. South southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers and possibly a thunderstorm, mainly before 11am, then a chance of showers and thunderstorms after 11am. High near 72. South southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Showers and thunderstorms likely before 10pm, then showers and possibly a thunderstorm between 10pm and 4am, then a chance of showers and thunderstorms after 4am. Low around 50. South southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 7am. Mostly cloudy, with a high near 65. Southwest wind 5 to 10 mph becoming northwest in the afternoon. Chance of precipitation is 60%.
Thursday Night
A slight chance of thunderstorms before 7pm. Mostly cloudy, with a low around 46. North northeast wind around 5 mph becoming south after midnight. Chance of precipitation is 10%.
Friday
Mostly cloudy, with a high near 62.
Friday Night
Showers and possibly a thunderstorm. Low around 48. Chance of precipitation is 80%.
Saturday
A chance of showers. Partly sunny, with a high near 61.
Saturday Night
Partly cloudy, with a low around 35.
Sunday
Mostly sunny, with a high near 49.
Sunday Night
Partly cloudy, with a low around 34.
Monday
Sunny, with a high near 52.
Monday Night
Partly cloudy, with a low around 45.
Tuesday
Mostly sunny, with a high near 68.
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
4:26 am CDT Apr 15, 2026
4am CDT Apr 15, 2026-6pm CDT Apr 21, 2026



