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

49°F

9°C

Humidity 69%
Wind Speed SW 8 mph
Barometer 30.01 in (1016.8 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 9 Nov 4:51 pm CST
Extended Forecast for

Zion IL

  • Tonight

    Tonight: Mostly clear, with a low around 42. Southwest wind around 10 mph becoming northwest after midnight. Winds could gust as high as 15 mph.

    Low: 42 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 61. Northwest wind 5 to 10 mph.

    High: 61 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 40. West wind around 5 mph becoming calm in the evening.

    Low: 40 °F

    Mostly Cloudy

  • Veterans Day

    Veterans Day: A 40 percent chance of rain, mainly 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

    Chance Rain

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 39. Breezy, with a north northwest wind 10 to 20 mph, with gusts as high as 25 mph.

    Low: 39 °F

    Chance Rain
    and Breezy

  • Thursday

    Thursday: A 50 percent chance of rain. Mostly cloudy, with a high near 46. Breezy.

    High: 46 °F

    Chance Rain
    and Breezy

  • Thursday Night

    Thursday Night: A chance of rain before 9pm, then a chance of rain and snow between 9pm and midnight, then a chance of snow after midnight. Mostly cloudy, with a low around 32. Chance of precipitation is 40%.

    Low: 32 °F

    Chance
    Rain/Snow
    then Chance
    Snow

  • Friday

    Friday: A chance of snow before 9am, then a chance of rain. Mostly sunny, with a high near 43.

    High: 43 °F

    Chance
    Rain/Snow
    then Chance
    Rain

  • Friday Night

    Friday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 42. Southwest wind around 10 mph becoming northwest after midnight. Winds could gust as high as 15 mph.
Tuesday
Sunny, with a high near 61. Northwest wind 5 to 10 mph.
Tuesday Night
Mostly cloudy, with a low around 40. West wind around 5 mph becoming calm in the evening.
Veterans Day
A 40 percent chance of rain, mainly 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 rain. Mostly cloudy, with a low around 39. Breezy, with a north northwest wind 10 to 20 mph, with gusts as high as 25 mph.
Thursday
A 50 percent chance of rain. Mostly cloudy, with a high near 46. Breezy.
Thursday Night
A chance of rain before 9pm, then a chance of rain and snow between 9pm and midnight, then a chance of snow after midnight. Mostly cloudy, with a low around 32. Chance of precipitation is 40%.
Friday
A chance of snow before 9am, then a chance of rain. Mostly sunny, with a high near 43.
Friday Night
Partly cloudy, with a low around 30.
Saturday
Sunny, with a high near 45.
Saturday Night
Mostly clear, with a low around 33.
Sunday
Sunny, with a high near 48.
Sunday Night
Partly cloudy, with a low around 36.
Monday
Mostly sunny, with a high near 53.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Zion IL
 42.45°N 87.84°W
Last Update:
5:40 pm CST Nov 9, 2026
Forecast Valid:
5pm CST Nov 9, 2026-6pm CST Nov 16, 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