National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Mostly Cloudy

42°F

6°C

Humidity 58%
Wind Speed NW 13 G 21 mph
Barometer 29.73 in (1006.8 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 22 Mar 3:51 am CDT
Extended Forecast for

Zion IL

  • Overnight

    Overnight: A slight chance of rain and snow showers after 5am. Mostly cloudy, with a low around 32. North northwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 10%.

    Low: 32 °F

    Slight Chance
    Rain/Snow

  • Saturday

    Saturday: A slight chance of rain and snow showers before 7am. Mostly sunny, with a high near 37. North wind 10 to 15 mph becoming east northeast in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 10%.

    High: 37 °F

    Slight Chance
    Rain/Snow
    then Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 31. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 31 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Showers, mainly after 10am. High near 47. Breezy, with a south southeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%.

    High: 47 °F

    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Showers likely before 7pm. Mostly cloudy, with a low around 32. Breezy, with a west wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.

    Low: 32 °F

    Breezy.
    Showers
    Likely then
    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 46. Breezy.

    High: 46 °F

    Partly Sunny
    and Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 44.

    High: 44 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy

Detailed Forecast

Overnight
A slight chance of rain and snow showers after 5am. Mostly cloudy, with a low around 32. North northwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 10%.
Saturday
A slight chance of rain and snow showers before 7am. Mostly sunny, with a high near 37. North wind 10 to 15 mph becoming east northeast in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 10%.
Saturday Night
Increasing clouds, with a low around 31. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday
Showers, mainly after 10am. High near 47. Breezy, with a south southeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%.
Sunday Night
Showers likely before 7pm. Mostly cloudy, with a low around 32. Breezy, with a west wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
Monday
Partly sunny, with a high near 46. Breezy.
Monday Night
Partly cloudy, with a low around 30.
Tuesday
Partly sunny, with a high near 44.
Tuesday Night
Partly cloudy, with a low around 32.
Wednesday
Mostly sunny, with a high near 51.
Wednesday Night
Partly cloudy, with a low around 34.
Thursday
Mostly sunny, with a high near 54.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 40.
Friday
A chance of showers. Partly sunny, with a high near 64.
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Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Zion IL
 42.45°N 87.84°W
Last Update:
3:56 am CDT Mar 22, 2025
Forecast Valid:
4am CDT Mar 22, 2025-6pm CDT Mar 28, 2025
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation