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

11°F

-12°C

Humidity 48%
Wind Speed NW 6 mph
Barometer 30.21 in (1025.5 mb)
Dewpoint -5°F (-21°C)
Visibility 10.00 mi
Wind Chill1°F (-17°C)
Last update 27 Jan 4:51 pm CST
Extended Forecast for

Zion IL

  • Tonight

    Tonight: Mostly clear, with a low around 2. Wind chill values as low as -14. West wind around 10 mph.

    Low: 2 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 14. Wind chill values as low as -13. West wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 14 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 0. Wind chill values as low as -14. Northwest wind around 10 mph, with gusts as high as 15 mph.

    Low: 0 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 12. Wind chill values as low as -14. Northwest wind around 10 mph.

    High: 12 °F

    Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of snow, mainly after midnight. Partly cloudy, with a low around 3. North northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 3 °F

    Chance Snow

  • Friday

    Friday: A 40 percent chance of snow. Partly sunny, with a high near 15.

    High: 15 °F

    Chance Snow

  • Friday Night

    Friday Night: A 30 percent chance of snow. Mostly cloudy, with a low around 8.

    Low: 8 °F

    Chance Snow

  • Saturday

    Saturday: Partly sunny, with a high near 22.

    High: 22 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 9.

    Low: 9 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 2. Wind chill values as low as -14. West wind around 10 mph.
Wednesday
Mostly sunny, with a high near 14. Wind chill values as low as -13. West wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
Partly cloudy, with a low around 0. Wind chill values as low as -14. Northwest wind around 10 mph, with gusts as high as 15 mph.
Thursday
Sunny, with a high near 12. Wind chill values as low as -14. Northwest wind around 10 mph.
Thursday Night
A 30 percent chance of snow, mainly after midnight. Partly cloudy, with a low around 3. North northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Friday
A 40 percent chance of snow. Partly sunny, with a high near 15.
Friday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 8.
Saturday
Partly sunny, with a high near 22.
Saturday Night
Partly cloudy, with a low around 9.
Sunday
Mostly sunny, with a high near 24.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 15.
Monday
Mostly cloudy, with a high near 26.
Monday Night
Mostly cloudy, with a low around 14.
Tuesday
Partly sunny, with a high near 26.
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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:
4:06 pm CST Jan 27, 2026
Forecast Valid:
5pm CST Jan 27, 2026-6pm CST Feb 3, 2026
 
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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