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.

Partly Cloudy

31°F

-1°C

Humidity 45%
Wind Speed NW 9 G 17 mph
Barometer 30.34 in (1028.8 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill23°F (-5°C)
Last update 28 Nov 12:51 pm CST
Extended Forecast for

Zion IL

Winter Storm Warning November 29, 03:00am until November 30, 06:00am
Click here for hazard details and duration
Winter Storm Warning

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 31. West northwest wind 5 to 15 mph.

    High: 31 °F

    Mostly Sunny

  • Tonight

    Tonight: Snow, mainly after 5am. Low around 24. West northwest wind around 5 mph becoming calm. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 24 °F

    Mostly Cloudy
    then Snow

  • Saturday

    Saturday: Snow. The snow could be heavy at times. High near 34. Breezy, with a south southeast wind 5 to 15 mph increasing to 15 to 25 mph in the afternoon. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

    High: 34 °F

    Heavy Snow
    and Breezy

  • Saturday Night

    Saturday Night: Snow. Low around 30. Breezy, with a southeast wind 15 to 20 mph becoming south 10 to 15 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

    Low: 30 °F

    Snow and
    Breezy

  • Sunday

    Sunday: Snow likely, mainly before noon. Partly sunny, with a high near 33. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.

    High: 33 °F

    Breezy. Snow
    Likely then
    Slight Chance
    Snow

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 13.

    Low: 13 °F

    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of snow after noon. Mostly cloudy, with a high near 24.

    High: 24 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Monday Night

    Monday Night: A chance of snow. Mostly cloudy, with a low around 14.

    Low: 14 °F

    Chance Snow

  • Tuesday

    Tuesday: Partly sunny, with a high near 26.

    High: 26 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 31. West northwest wind 5 to 15 mph.
Tonight
Snow, mainly after 5am. Low around 24. West northwest wind around 5 mph becoming calm. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Saturday
Snow. The snow could be heavy at times. High near 34. Breezy, with a south southeast wind 5 to 15 mph increasing to 15 to 25 mph in the afternoon. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Saturday Night
Snow. Low around 30. Breezy, with a southeast wind 15 to 20 mph becoming south 10 to 15 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.
Sunday
Snow likely, mainly before noon. Partly sunny, with a high near 33. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.
Sunday Night
Partly cloudy, with a low around 13.
Monday
A 20 percent chance of snow after noon. Mostly cloudy, with a high near 24.
Monday Night
A chance of snow. Mostly cloudy, with a low around 14.
Tuesday
Partly sunny, with a high near 26.
Tuesday Night
Mostly cloudy, with a low around 18.
Wednesday
A chance of snow. Mostly cloudy, with a high near 32.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 17.
Thursday
Mostly sunny, with a high near 24.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Zion IL
 42.45°N 87.81°W
Last Update:
11:56 am CST Nov 28, 2025
Forecast Valid:
1pm CST Nov 28, 2025-6pm CST Dec 4, 2025
 
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Additional Resources

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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