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.

Light Rain

36°F

2°C

Humidity 82%
Wind Speed E 17 mph
Barometer 29.71 in (1007.1 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 15 Mar 4:51 am CDT
Extended Forecast for

Zion IL

Wind Advisory March 15, 01:00pm until March 15, 09:00pm
Click here for hazard details and duration
Wind Advisory

  • Overnight

    Overnight: A 30 percent chance of showers. Cloudy, with a steady temperature around 38. Breezy, with an east southeast wind around 20 mph, with gusts as high as 30 mph.

    Low: 38 °F

    Chance
    Showers and
    Breezy

  • Sunday

    Sunday: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 11am, then showers likely and possibly a thunderstorm after 11am. Cloudy, with a high near 55. Breezy, with a south wind 20 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 55 °F

    Showers
    Likely and
    Breezy

  • Sunday Night

    Sunday Night: Rain showers before 2am, then rain and snow showers between 2am and 3am, then snow showers after 3am. Some thunder is also possible. Patchy blowing snow after 1am. Low around 23. Windy, with a southwest wind 20 to 30 mph becoming north northwest in the evening. Winds could gust as high as 40 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.

    Low: 23 °F

    Showers and
    Breezy then
    Rain/Snow and
    Patchy
    Blowing Snow

  • Monday

    Monday: Snow showers likely, mainly before 1pm. Patchy blowing snow. Cloudy, with a high near 23. Windy, with a northwest wind around 30 mph, with gusts as high as 45 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    High: 23 °F

    Snow Showers
    Likely and
    Patchy
    Blowing Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 12. Blustery, with a northwest wind 15 to 25 mph, with gusts as high as 35 mph.

    Low: 12 °F

    Mostly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 26.

    High: 26 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Snow showers likely, mainly after 1am. Mostly cloudy, with a low around 21. Chance of precipitation is 60%.

    Low: 21 °F

    Slight Chance
    Snow Showers
    then Snow
    Showers
    Likely

  • Wednesday

    Wednesday: Partly sunny, with a high near 42.

    High: 42 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 30 percent chance of showers. Cloudy, with a steady temperature around 38. Breezy, with an east southeast wind around 20 mph, with gusts as high as 30 mph.
Sunday
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 11am, then showers likely and possibly a thunderstorm after 11am. Cloudy, with a high near 55. Breezy, with a south wind 20 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Rain showers before 2am, then rain and snow showers between 2am and 3am, then snow showers after 3am. Some thunder is also possible. Patchy blowing snow after 1am. Low around 23. Windy, with a southwest wind 20 to 30 mph becoming north northwest in the evening. Winds could gust as high as 40 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.
Monday
Snow showers likely, mainly before 1pm. Patchy blowing snow. Cloudy, with a high near 23. Windy, with a northwest wind around 30 mph, with gusts as high as 45 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Monday Night
Mostly cloudy, with a low around 12. Blustery, with a northwest wind 15 to 25 mph, with gusts as high as 35 mph.
Tuesday
Mostly sunny, with a high near 26.
Tuesday Night
Snow showers likely, mainly after 1am. Mostly cloudy, with a low around 21. Chance of precipitation is 60%.
Wednesday
Partly sunny, with a high near 42.
Wednesday Night
Mostly cloudy, with a low around 35.
Thursday
Mostly sunny, with a high near 48.
Thursday Night
Mostly cloudy, with a low around 36.
Friday
Mostly cloudy, with a high near 52.
Friday Night
Mostly cloudy, with a low around 36.
Saturday
Partly sunny, with a high near 45.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Zion IL
 42.45°N 87.81°W
Last Update:
4:31 am CDT Mar 15, 2026
Forecast Valid:
5am CDT Mar 15, 2026-6pm CDT Mar 21, 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