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

Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fog/Mist

39°F

4°C

Humidity 100%
Wind Speed SE 14 G 25 mph
Barometer 29.86 in (1012.1 mb)
Dewpoint 39°F (4°C)
Visibility 4.00 mi
Wind Chill31°F (-1°C)
Last update 27 Dec 7:51 pm CST
Extended Forecast for

Zion IL

Wind Advisory December 28, 06:00pm until December 29, 06:00pm
Click here for hazard details and duration
Wind Advisory

  • Tonight

    Tonight: Rain likely, mainly after 5am. Patchy fog. Otherwise, cloudy, with a low around 41. South southeast wind 5 to 15 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 41 °F

    Rain Likely
    and Patchy
    Fog

  • Sunday

    Sunday: Rain. Patchy fog before noon. High near 51. South wind 5 to 15 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 51 °F

    Rain and
    Patchy Fog

  • Sunday Night

    Sunday Night: Rain before 9pm, then snow. Low around 20. Wind chill values as low as 1. Windy, with a west wind 15 to 20 mph increasing to 25 to 30 mph after midnight. Winds could gust as high as 55 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 20 °F

    Windy.
    Rain/Snow
    then Snow

  • Monday

    Monday: Snow likely, mainly before noon. Mostly cloudy, with a high near 26. Wind chill values as low as 1. Windy, with a northwest wind 25 to 30 mph, with gusts as high as 50 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    High: 26 °F

    Snow Likely
    and Windy
    then Slight
    Chance Snow
    and Blustery

  • Monday Night

    Monday Night: Partly cloudy, with a low around 13. Blustery, with a northwest wind 15 to 25 mph, with gusts as high as 30 mph.

    Low: 13 °F

    Partly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 28.

    High: 28 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 23.

    Low: 23 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 30.

    High: 30 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A chance of snow before midnight. Mostly cloudy, with a low around 14.

    Low: 14 °F

    Chance Snow
    then Mostly
    Cloudy

Detailed Forecast

Tonight
Rain likely, mainly after 5am. Patchy fog. Otherwise, cloudy, with a low around 41. South southeast wind 5 to 15 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Rain. Patchy fog before noon. High near 51. South wind 5 to 15 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday Night
Rain before 9pm, then snow. Low around 20. Wind chill values as low as 1. Windy, with a west wind 15 to 20 mph increasing to 25 to 30 mph after midnight. Winds could gust as high as 55 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Monday
Snow likely, mainly before noon. Mostly cloudy, with a high near 26. Wind chill values as low as 1. Windy, with a northwest wind 25 to 30 mph, with gusts as high as 50 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Monday Night
Partly cloudy, with a low around 13. Blustery, with a northwest wind 15 to 25 mph, with gusts as high as 30 mph.
Tuesday
Partly sunny, with a high near 28.
Tuesday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 23.
Wednesday
Mostly cloudy, with a high near 30.
Wednesday Night
A chance of snow before midnight. Mostly cloudy, with a low around 14.
New Year's Day
Mostly sunny, with a high near 21.
Thursday Night
Mostly clear, with a low around 11.
Friday
Mostly sunny, with a high near 24.
Friday Night
Mostly cloudy, with a low around 19.
Saturday
Partly sunny, with a high near 33.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Zion IL
 42.45°N 87.81°W
Last Update:
3:31 pm CST Dec 27, 2025
Forecast Valid:
8pm CST Dec 27, 2025-6pm CST Jan 3, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation