National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fair

34°F

1°C

Humidity 97%
Wind Speed W 3 mph
Barometer 30.07 in (1018.7 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Last update 9 Nov 3:51 am CST
Extended Forecast for

Zion IL

  • Today

    Today: Partly sunny, with a high near 59. West northwest wind 5 to 10 mph becoming southwest in the morning. Winds could gust as high as 15 mph.

    High: 59 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 41. Southwest wind around 10 mph becoming northwest after midnight. Winds could gust as high as 15 mph.

    Low: 41 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Sunny, with a high near 60. Northwest wind 5 to 10 mph.

    High: 60 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 39. West wind around 5 mph becoming calm.

    Low: 39 °F

    Mostly Cloudy

  • Veterans Day

    Veterans Day: A 50 percent chance of showers after noon. Mostly cloudy, with a high near 53. Light and variable wind becoming north 5 to 10 mph in the morning. Winds could gust as high as 15 mph.

    High: 53 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 38.

    Low: 38 °F

    Chance
    Showers

  • Thursday

    Thursday: Showers likely, mainly before noon. Mostly cloudy, with a high near 46. Breezy. Chance of precipitation is 60%.

    High: 46 °F

    Showers
    Likely and
    Breezy

  • Thursday Night

    Thursday Night: A chance of rain before 3am, then a chance of rain and snow. Mostly cloudy, with a low around 32.

    Low: 32 °F

    Chance Rain
    then Chance
    Rain/Snow

  • Friday

    Friday: A chance of rain and snow before 9am, then a chance of rain between 9am and noon. Partly sunny, with a high near 44.

    High: 44 °F

    Chance
    Rain/Snow
    then Partly
    Sunny

Detailed Forecast

Today
Partly sunny, with a high near 59. West northwest wind 5 to 10 mph becoming southwest in the morning. Winds could gust as high as 15 mph.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 41. Southwest wind around 10 mph becoming northwest after midnight. Winds could gust as high as 15 mph.
Tuesday
Sunny, with a high near 60. Northwest wind 5 to 10 mph.
Tuesday Night
Mostly cloudy, with a low around 39. West wind around 5 mph becoming calm.
Veterans Day
A 50 percent chance of showers after noon. Mostly cloudy, with a high near 53. Light and variable wind becoming north 5 to 10 mph in the morning. Winds could gust as high as 15 mph.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 38.
Thursday
Showers likely, mainly before noon. Mostly cloudy, with a high near 46. Breezy. Chance of precipitation is 60%.
Thursday Night
A chance of rain before 3am, then a chance of rain and snow. Mostly cloudy, with a low around 32.
Friday
A chance of rain and snow before 9am, then a chance of rain between 9am and noon. Partly sunny, with a high near 44.
Friday Night
Partly cloudy, with a low around 29.
Saturday
Sunny, with a high near 48.
Saturday Night
Mostly clear, with a low around 33.
Sunday
Sunny, with a high near 52.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Zion IL
 42.45°N 87.87°W
Last Update:
3:41 am CST Nov 9, 2026
Forecast Valid:
4am CST Nov 9, 2026-6pm CST Nov 15, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation