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

47°F

8°C

Humidity 90%
Wind Speed NE 10 mph
Barometer 29.82 in (1010.0 mb)
Dewpoint 44°F (7°C)
Visibility 8.00 mi
Wind Chill42°F (6°C)
Last update 26 Mar 3:51 pm CDT
Extended Forecast for

Zion IL

  • This Afternoon

    This Afternoon: Showers likely, mainly after 5pm. Mostly cloudy, with a steady temperature around 41. Breezy, with a north wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 41 °F

    Showers
    Likely and
    Breezy

  • Tonight

    Tonight: Showers, mainly before 8pm. Low around 30. Windy, with a north wind 25 to 30 mph, with gusts as high as 40 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 30 °F

    Windy.
    Showers then
    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 39. North wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 39 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 27. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 27 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 47. West northwest wind 5 to 15 mph becoming south in the afternoon.

    High: 47 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 60.

    High: 60 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Showers likely, mainly after 5pm. Mostly cloudy, with a steady temperature around 41. Breezy, with a north wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Showers, mainly before 8pm. Low around 30. Windy, with a north wind 25 to 30 mph, with gusts as high as 40 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Mostly sunny, with a high near 39. North wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night
Mostly clear, with a low around 27. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Saturday
Mostly sunny, with a high near 47. West northwest wind 5 to 15 mph becoming south in the afternoon.
Saturday Night
Mostly cloudy, with a low around 39.
Sunday
Partly sunny, with a high near 60.
Sunday Night
Partly cloudy, with a low around 44.
Monday
Mostly sunny, with a high near 60.
Monday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 45.
Tuesday
A chance of showers. Mostly cloudy, with a high near 64.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 46.
Wednesday
A chance of showers. Mostly cloudy, with a high near 55.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 40.
Thursday
A chance of showers. Mostly cloudy, with a high near 49.
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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:
3:11 pm CDT Mar 26, 2026
Forecast Valid:
4pm CDT Mar 26, 2026-6pm CDT Apr 2, 2026
 
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Additional Resources

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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