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

38°F

3°C

Humidity 93%
Wind Speed Calm
Barometer 29.92 in (1013.8 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 11 Nov 4:51 am CST
Extended Forecast for

Zion IL

  • Veterans Day

    Veterans Day: Showers likely, mainly between noon and 4pm. Cloudy, with a high near 52. South wind 5 to 15 mph becoming north in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 52 °F

    Showers
    Likely

  • Tonight

    Tonight: A 30 percent chance of showers, mainly after 3am. Mostly cloudy, with a low around 40. Breezy, with a north northwest wind 10 to 20 mph, with gusts as high as 30 mph.

    Low: 40 °F

    Chance
    Showers and
    Breezy

  • Thursday

    Thursday: Showers likely, mainly between noon and 3pm. Mostly cloudy, with a high near 46. Breezy, with a north wind 20 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 46 °F

    Showers
    Likely and
    Breezy

  • Thursday Night

    Thursday Night: A slight chance of rain and snow showers before 9pm, then a slight chance of rain showers. Mostly cloudy, with a low around 33. Breezy, with a north northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    Low: 33 °F

    Slight Chance
    Rain/Snow and
    Breezy

  • Friday

    Friday: A 20 percent chance of showers before noon. Mostly sunny, with a high near 44. North northwest wind around 15 mph, with gusts as high as 25 mph.

    High: 44 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Friday Night

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

    Low: 30 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 46.

    High: 46 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 47.

    High: 47 °F

    Mostly Sunny

Detailed Forecast

Veterans Day
Showers likely, mainly between noon and 4pm. Cloudy, with a high near 52. South wind 5 to 15 mph becoming north in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
A 30 percent chance of showers, mainly after 3am. Mostly cloudy, with a low around 40. Breezy, with a north northwest wind 10 to 20 mph, with gusts as high as 30 mph.
Thursday
Showers likely, mainly between noon and 3pm. Mostly cloudy, with a high near 46. Breezy, with a north wind 20 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A slight chance of rain and snow showers before 9pm, then a slight chance of rain showers. Mostly cloudy, with a low around 33. Breezy, with a north northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Friday
A 20 percent chance of showers before noon. Mostly sunny, with a high near 44. North northwest wind around 15 mph, with gusts as high as 25 mph.
Friday Night
Partly cloudy, with a low around 30.
Saturday
Sunny, with a high near 46.
Saturday Night
Partly cloudy, with a low around 32.
Sunday
Mostly sunny, with a high near 47.
Sunday Night
Partly cloudy, with a low around 33.
Monday
Mostly sunny, with a high near 48.
Monday Night
Partly cloudy, with a low around 34.
Tuesday
Sunny, with a high near 50.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Zion IL
 42.45°N 87.81°W
Last Update:
3:46 am CST Nov 11, 2026
Forecast Valid:
4am CST Nov 11, 2026-6pm CST Nov 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation