Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fair and Breezy

66°F

19°C

Humidity 25%
Wind Speed SW 21 G 32 mph
Barometer 29.87 in (1011.4 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Last update 25 Mar 1:51 pm CDT
Extended Forecast for

Zion IL

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 68. South wind around 15 mph, with gusts as high as 30 mph.

    High: 68 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 46. Southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 46 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers, then showers and possibly a thunderstorm after 2pm. Some of the storms could be severe.  Temperature rising to near 53 by 11am, then falling to around 42 during the remainder of the day. Breezy, with a south southwest wind 5 to 10 mph becoming north northeast 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 53 °F

    Partly Sunny
    then Severe
    Thunderstorms
    and Breezy

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely before 10pm, then a chance of showers between 10pm and 1am. Some of the storms could be severe.  Mostly cloudy, with a low around 31. Blustery, with a north wind 20 to 25 mph, with gusts as high as 40 mph.  Chance of precipitation is 60%.

    Low: 31 °F

    Blustery.
    Severe
    Thunderstorms
    then Chance
    Showers

  • Friday

    Friday: Partly sunny, with a high near 38. North wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 38 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 57.

    High: 57 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 68. South wind around 15 mph, with gusts as high as 30 mph.
Tonight
Partly cloudy, with a low around 46. Southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Thursday
A slight chance of showers, then showers and possibly a thunderstorm after 2pm. Some of the storms could be severe. Temperature rising to near 53 by 11am, then falling to around 42 during the remainder of the day. Breezy, with a south southwest wind 5 to 10 mph becoming north northeast 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and thunderstorms likely before 10pm, then a chance of showers between 10pm and 1am. Some of the storms could be severe. Mostly cloudy, with a low around 31. Blustery, with a north wind 20 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 60%.
Friday
Partly sunny, with a high near 38. North wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night
Mostly clear, with a low around 27.
Saturday
Mostly sunny, with a high near 48.
Saturday Night
Partly cloudy, with a low around 37.
Sunday
Partly sunny, with a high near 57.
Sunday Night
Partly cloudy, with a low around 45.
Monday
Mostly sunny, with a high near 63.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 46.
Tuesday
A chance of showers. Mostly cloudy, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
Zion IL
 42.45°N 87.81°W
1:46 pm CDT Mar 25, 2026
1pm CDT Mar 25, 2026-6pm CDT Mar 31, 2026
 
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