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.

Fair

-9°F

-23°C

Humidity 40%
Wind Speed NW 10 G 22 mph
Barometer 30.69 in (1042.9 mb)
Dewpoint -27°F (-33°C)
Visibility 10.00 mi
Wind Chill-27°F (-33°C)
Last update 23 Jan 11:51 am CST
Extended Forecast for

Zion IL

Cold Weather Advisory January 23, 12:42pm until January 24, 09:00am
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory January 23, 12:42pm until January 24, 09:00am

    NOW until 9:00am Sat

    Cold Weather Advisory

  • This Afternoon

    High: -4 °F

    Cold

  • Tonight

    Tonight: A 20 percent chance of snow showers after 3am. Increasing clouds, with a low around -11. Wind chill values as low as -29. Northwest wind around 10 mph, with gusts as high as 15 mph.

    Low: -11 °F

    Partly Cloudy
    then Slight
    Chance Snow
    Showers

  • Saturday

    Saturday: A 30 percent chance of snow, mainly after noon. Mostly cloudy and cold, with a high near 10. Wind chill values as low as -25. Northwest wind 5 to 10 mph.

    High: 10 °F

    Chance Snow

  • Saturday Night

    Saturday Night: A 50 percent chance of snow. Cloudy, with a low around 4. North wind 5 to 10 mph.

    Low: 4 °F

    Chance Snow

  • Sunday

    Sunday: A 50 percent chance of snow. Cloudy, with a high near 18. North wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 18 °F

    Chance Snow

  • Sunday Night

    Sunday Night: A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 0.

    Low: 0 °F

    Chance Snow

  • Monday

    Monday: Mostly sunny, with a high near 11.

    High: 11 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 5.

    Low: 5 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Mostly sunny and cold, with a high near -4. Wind chill values as low as -28. Northwest wind around 15 mph, with gusts as high as 25 mph.
Tonight
A 20 percent chance of snow showers after 3am. Increasing clouds, with a low around -11. Wind chill values as low as -29. Northwest wind around 10 mph, with gusts as high as 15 mph.
Saturday
A 30 percent chance of snow, mainly after noon. Mostly cloudy and cold, with a high near 10. Wind chill values as low as -25. Northwest wind 5 to 10 mph.
Saturday Night
A 50 percent chance of snow. Cloudy, with a low around 4. North wind 5 to 10 mph.
Sunday
A 50 percent chance of snow. Cloudy, with a high near 18. North wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday Night
A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 0.
Monday
Mostly sunny, with a high near 11.
Monday Night
Mostly cloudy, with a low around 5.
Tuesday
Partly sunny, with a high near 17.
Tuesday Night
Partly cloudy, with a low around 2.
Wednesday
Mostly sunny, with a high near 13.
Wednesday Night
Mostly cloudy, with a low around 1.
Thursday
Mostly sunny, with a high near 13.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Zion IL
 42.45°N 87.81°W
Last Update:
12:06 pm CST Jan 23, 2026
Forecast Valid:
12pm CST Jan 23, 2026-6pm CST Jan 29, 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