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.

Overcast

13°F

-11°C

Humidity 64%
Wind Speed W 16 G 25 mph
Barometer 29.80 in (1010.6 mb)
Dewpoint 3°F (-16°C)
Visibility 10.00 mi
Wind Chill-3°F (-19°C)
Last update 17 Jan 5:51 am CST
Extended Forecast for

Zion IL

  • Today

    Today: Snow, mainly after 2pm. High near 21. Wind chill values as low as -2. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. Total daytime snow accumulation of less than one inch possible.

    High: 21 °F

    Breezy.
    Chance Snow
    then Snow

  • Tonight

    Tonight: Snow, mainly before 9pm, then a slight chance of flurries after midnight. Low around 10. Wind chill values as low as -4. West wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 10 °F

    Snow then
    Mostly Cloudy

  • Sunday

    Sunday: Snow likely after noon. Mostly cloudy, with a high near 20. Wind chill values as low as -6. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 20 °F

    Mostly Cloudy
    then Snow
    Likely

  • Sunday Night

    Sunday Night: Snow likely, mainly before midnight. Mostly cloudy, with a low around 4. Wind chill values as low as -14. Blustery, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 4 °F

    Snow Likely
    then Slight
    Chance Snow
    and Blustery

  • M.L.King Day

    M.L.King Day: Partly sunny and cold, with a high near 9. Blustery, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 9 °F

    Cold and
    Blustery

  • Monday Night

    Monday Night: Partly cloudy, with a low around 2.

    Low: 2 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 24.

    High: 24 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of snow. Mostly cloudy, with a low around 16.

    Low: 16 °F

    Chance Snow

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 29.

    High: 29 °F

    Mostly Cloudy

Detailed Forecast

Today
Snow, mainly after 2pm. High near 21. Wind chill values as low as -2. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. Total daytime snow accumulation of less than one inch possible.
Tonight
Snow, mainly before 9pm, then a slight chance of flurries after midnight. Low around 10. Wind chill values as low as -4. West wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Sunday
Snow likely after noon. Mostly cloudy, with a high near 20. Wind chill values as low as -6. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Sunday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 4. Wind chill values as low as -14. Blustery, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
M.L.King Day
Partly sunny and cold, with a high near 9. Blustery, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Monday Night
Partly cloudy, with a low around 2.
Tuesday
Mostly sunny, with a high near 24.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 16.
Wednesday
Mostly cloudy, with a high near 29.
Wednesday Night
Mostly cloudy, with a low around 11.
Thursday
Partly sunny, with a high near 18.
Thursday Night
Mostly cloudy, with a low around 9.
Friday
Partly sunny, with a high near 21.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Zion IL
 42.45°N 87.81°W
Last Update:
5:26 am CST Jan 17, 2026
Forecast Valid:
6am CST Jan 17, 2026-6pm CST Jan 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation