Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fair

34°F

1°C

Humidity 89%
Wind Speed Calm
Barometer 29.98 in (1016.0 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 19 Mar 10:51 pm CDT
Extended Forecast for

Zion IL

  • Tonight

    Tonight: Mostly cloudy, with a temperature rising to around 44 by 5am. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 37 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 53. West southwest wind 10 to 15 mph becoming north in the afternoon.

    High: 53 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 37. North wind 5 to 10 mph becoming east after midnight.

    Low: 37 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 58. South wind 5 to 10 mph.

    High: 58 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 45. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 45 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers before 1pm.  Mostly cloudy, with a high near 55.

    High: 55 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 39.

    High: 39 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a temperature rising to around 44 by 5am. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Friday
Partly sunny, with a high near 53. West southwest wind 10 to 15 mph becoming north in the afternoon.
Friday Night
Mostly cloudy, with a low around 37. North wind 5 to 10 mph becoming east after midnight.
Saturday
Mostly sunny, with a high near 58. South wind 5 to 10 mph.
Saturday Night
Partly cloudy, with a low around 45. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Sunday
A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 55.
Sunday Night
Mostly cloudy, with a low around 31.
Monday
Mostly sunny, with a high near 39.
Monday Night
Mostly cloudy, with a low around 32.
Tuesday
Mostly cloudy, with a high near 50.
Tuesday Night
Mostly cloudy, with a low around 36.
Wednesday
Mostly cloudy, with a high near 47.
Wednesday Night
Mostly cloudy, with a low around 40.
Thursday
A chance of showers. Partly sunny, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
Zion IL
 42.45°N 87.81°W
9:11 pm CDT Mar 19, 2026
11pm CDT Mar 19, 2026-6pm CDT Mar 26, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database