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.

Mostly Cloudy

25°F

-4°C

Humidity 75%
Wind Speed W 7 mph
Barometer 29.89 in (1013.9 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill17°F (-8°C)
Last update 21 Jan 9:51 am CST
Extended Forecast for

Zion IL

Extreme Cold Watch January 23, 03:00am until January 23, 12:00pm
Click here for hazard details and duration
Extreme Cold Watch

  • Today

    Today: A 30 percent chance of snow showers after 5pm. Mostly cloudy, with a high near 27. West southwest wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 27 °F

    Mostly Cloudy
    then Chance
    Snow Showers

  • Tonight

    Tonight: Snow showers likely, mainly before 10pm. Patchy blowing snow between 9pm and 3am. Mostly cloudy, with a low around 10. Wind chill values as low as -6. Breezy, with a west wind 15 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 10 °F

    Snow Showers
    Likely and
    Patchy
    Blowing Snow

  • Thursday

    Thursday: A 20 percent chance of snow showers after 3pm. Mostly sunny, with a high near 21. Wind chill values as low as -5. West wind around 15 mph, with gusts as high as 30 mph.

    High: 21 °F

    Mostly Sunny
    then Slight
    Chance Snow
    Showers

  • Thursday Night

    Thursday Night: A 20 percent chance of snow showers before 9pm. Partly cloudy, with a low around -10. Wind chill values as low as -31. Blustery, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: -10 °F

    Blustery.
    Slight Chance
    Snow Showers
    then Partly
    Cloudy

  • Friday

    Friday: Mostly sunny and cold, with a high near -2. Blustery, with a northwest wind 15 to 20 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph.

    High: -2 °F

    Mostly Sunny
    and Blustery
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around -10.

    Low: -10 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of snow after noon. Partly sunny and cold, with a high near 6.

    High: 6 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Saturday Night

    Saturday Night: A chance of snow. Mostly cloudy, with a low around 0.

    Low: 0 °F

    Chance Snow

  • Sunday

    Sunday: A chance of snow. Mostly cloudy, with a high near 13.

    High: 13 °F

    Chance Snow

Detailed Forecast

Today
A 30 percent chance of snow showers after 5pm. Mostly cloudy, with a high near 27. West southwest wind 10 to 15 mph, with gusts as high as 30 mph.
Tonight
Snow showers likely, mainly before 10pm. Patchy blowing snow between 9pm and 3am. Mostly cloudy, with a low around 10. Wind chill values as low as -6. Breezy, with a west wind 15 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Thursday
A 20 percent chance of snow showers after 3pm. Mostly sunny, with a high near 21. Wind chill values as low as -5. West wind around 15 mph, with gusts as high as 30 mph.
Thursday Night
A 20 percent chance of snow showers before 9pm. Partly cloudy, with a low around -10. Wind chill values as low as -31. Blustery, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Friday
Mostly sunny and cold, with a high near -2. Blustery, with a northwest wind 15 to 20 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph.
Friday Night
Mostly cloudy, with a low around -10.
Saturday
A 20 percent chance of snow after noon. Partly sunny and cold, with a high near 6.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 0.
Sunday
A chance of snow. Mostly cloudy, with a high near 13.
Sunday Night
Partly cloudy, with a low around -1.
Monday
Mostly sunny, with a high near 14.
Monday Night
Partly cloudy, with a low around 5.
Tuesday
Partly sunny, with a high near 22.
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 87.84°W
Last Update:
10:26 am CST Jan 21, 2026
Forecast Valid:
10am CST Jan 21, 2026-6pm CST Jan 27, 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