Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fair

13°F

-11°C

Humidity 74%
Wind Speed NW 9 mph
Barometer 29.94 in (1016.1 mb)
Dewpoint 6°F (-14°C)
Visibility 10.00 mi
Wind Chill1°F (-17°C)
Last update 2 Jan 7:51 am CST
Extended Forecast for

Zion IL

  • Today

    Today: Sunny, with a high near 24. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 24 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 18. North northwest wind around 5 mph, with gusts as high as 10 mph.

    Low: 18 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 27. North northwest wind around 5 mph.

    High: 27 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 16. Northwest wind around 5 mph, with gusts as high as 10 mph.

    Low: 16 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 31. Northwest wind around 5 mph becoming south in the afternoon.

    High: 31 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of snow before midnight.  Mostly cloudy, with a low around 27.

    Low: 27 °F

    Chance Snow
    then Mostly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 42.

    High: 42 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 24. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Tonight
Mostly cloudy, with a low around 18. North northwest wind around 5 mph, with gusts as high as 10 mph.
Saturday
Mostly cloudy, with a high near 27. North northwest wind around 5 mph.
Saturday Night
Partly cloudy, with a low around 16. Northwest wind around 5 mph, with gusts as high as 10 mph.
Sunday
Mostly sunny, with a high near 31. Northwest wind around 5 mph becoming south in the afternoon.
Sunday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 27.
Monday
Mostly sunny, with a high near 40.
Monday Night
Mostly cloudy, with a low around 33.
Tuesday
Partly sunny, with a high near 42.
Tuesday Night
Mostly cloudy, with a low around 31.
Wednesday
Partly sunny, with a high near 41.
Wednesday Night
Mostly cloudy, with a low around 34.
Thursday
A chance of rain. Mostly cloudy, with a high near 46.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Zion IL
 42.45°N 87.81°W
7:01 am CST Jan 2, 2026
8am CST Jan 2, 2026-6pm CST Jan 8, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database