Hazardous Weather Conditions
Current conditions at
Chicago/Waukegan Regional Airport (KUGN)
Lat: 42.43°NLon: 87.86°WElev: 709ft.
Overcast
48°F
9°C
| Humidity | 71% |
| Wind Speed | SW 7 mph |
| Barometer | 29.94 in (1013.6 mb) |
| Dewpoint | 39°F (4°C) |
| Visibility | 10.00 mi |
| Wind Chill | 45°F (7°C) |
| Last update | 17 Feb 12:51 am CST |
Extended Forecast for
Zion IL
Overnight

Low: 36 °F
Patchy Fog
Tuesday
High: 44 °F
Patchy Fog
then Slight
Chance RainTuesday Night

Low: 43 °F⇑
Rain
Wednesday
High: 60 °F
Breezy.
Slight Chance
Rain then
SunnyWednesday Night

Low: 36 °F
Partly Cloudy
Thursday
High: 45 °F
Partly Sunny
then Chance
RainThursday Night

Low: 35 °F
Rain
Friday

High: 41 °F
Chance
Rain/Snow and
BreezyFriday Night

Low: 28 °F
Mostly Cloudy
Detailed Forecast
Overnight
Patchy fog. Otherwise, mostly cloudy, with a low around 36. North northwest wind around 5 mph becoming east southeast.
Tuesday
A 20 percent chance of rain after 5pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 44. East southeast wind 5 to 15 mph.
Tuesday Night
A chance of rain, then rain and possibly a thunderstorm after 9pm. Temperature rising to around 46 by 5am. Southeast wind around 15 mph becoming south southwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
A 20 percent chance of rain before noon. Sunny, with a high near 60. Breezy, with a west southwest wind 15 to 20 mph, with gusts as high as 35 mph.
Wednesday Night
Partly cloudy, with a low around 36. West southwest wind 5 to 10 mph becoming southeast after midnight. Winds could gust as high as 15 mph.
Thursday
A 30 percent chance of rain after noon. Partly sunny, with a high near 45.
Thursday Night
Rain. Low around 35. Chance of precipitation is 80%.
Friday
A chance of rain and snow. Mostly cloudy, with a high near 41. Breezy.
Friday Night
Mostly cloudy, with a low around 28.
Saturday
Partly sunny, with a high near 36.
Saturday Night
Mostly cloudy, with a low around 25.
Sunday
Partly sunny, with a high near 33.
Sunday Night
Partly cloudy, with a low around 20.
Monday
Mostly sunny, with a high near 31.
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
12:01 am CST Feb 17, 2026
1am CST Feb 17, 2026-6pm CST Feb 23, 2026



