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

37°F

3°C

Humidity 86%
Wind Speed SE 9 mph
Barometer 30.05 in (1018.4 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 10 Jan 3:51 am CST
Extended Forecast for

Zion IL

  • Overnight

    Overnight: A chance of rain before 5am, then rain likely, possibly mixed with snow. Cloudy, with a steady temperature around 37. South southeast wind around 10 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 37 °F

    Rain/Snow
    Likely

  • Saturday

    Saturday: Rain and snow before 2pm, then scattered snow after 4pm. Temperature falling to around 33 by 5pm. South southeast wind 10 to 15 mph becoming west northwest in the morning. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    High: 35 °F⇓

    Rain/Snow
    then Chance
    Snow

  • Saturday Night

    Saturday Night: Scattered snow showers. Mostly cloudy, with a low around 22. Blustery, with a west northwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 40%.

    Low: 22 °F

    Scattered
    Snow Showers
    and Blustery

  • Sunday

    Sunday: A chance of flurries before 9am. Mostly sunny, with a high near 33. Breezy, with a northwest wind 15 to 20 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 35 mph.

    High: 33 °F

    Chance
    Flurries and
    Breezy then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 26. West southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 26 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 41.

    High: 41 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of showers. Mostly cloudy, with a high near 48.

    High: 48 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of snow showers after 3am. Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy
    then Chance
    Snow Showers

Detailed Forecast

Overnight
A chance of rain before 5am, then rain likely, possibly mixed with snow. Cloudy, with a steady temperature around 37. South southeast wind around 10 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Saturday
Rain and snow before 2pm, then scattered snow after 4pm. Temperature falling to around 33 by 5pm. South southeast wind 10 to 15 mph becoming west northwest in the morning. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Saturday Night
Scattered snow showers. Mostly cloudy, with a low around 22. Blustery, with a west northwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 40%.
Sunday
A chance of flurries before 9am. Mostly sunny, with a high near 33. Breezy, with a northwest wind 15 to 20 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 35 mph.
Sunday Night
Partly cloudy, with a low around 26. West southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Monday
Sunny, with a high near 41.
Monday Night
Mostly cloudy, with a low around 34.
Tuesday
A chance of showers. Mostly cloudy, with a high near 48.
Tuesday Night
A chance of snow showers after 3am. Mostly cloudy, with a low around 30.
Wednesday
A chance of snow showers. Mostly cloudy, with a high near 32.
Wednesday Night
Mostly cloudy, with a low around 21.
Thursday
Partly sunny, with a high near 30.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 26.
Friday
A chance of snow showers. Mostly cloudy, with a high near 34.
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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:
2:31 am CST Jan 10, 2026
Forecast Valid:
4am CST Jan 10, 2026-6pm CST Jan 16, 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