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Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fair

2°C

35°F

Humidity 96%
Wind Speed NW 7 km/h
Barometer 1016.6 mb (30.02 in)
Dewpoint 1°C (34°F)
Visibility 16 km
Wind Chill-1°C (31°F)
Last update 10 May 5:51 am CDT
Extended Forecast for

Zion IL

  • Today

    Today: Increasing clouds, with a high near 15. North northwest wind 10 to 15 km/h becoming north 20 to 25 km/h in the afternoon. Winds could gust as high as 40 km/h.

    High: 15 °C

    Increasing
    Clouds

  • Tonight

    Tonight: Partly cloudy, with a low around 3. Southeast wind 10 to 15 km/h becoming north in the evening. Winds could gust as high as 30 km/h.

    Low: 3 °C

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 10. East northeast wind 10 to 15 km/h, with gusts as high as 25 km/h.

    High: 10 °C

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 4. East northeast wind 10 to 15 km/h becoming south southeast after midnight. Winds could gust as high as 25 km/h.

    Low: 4 °C

    Mostly Clear

  • Tuesday

    Tuesday: Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 23. Breezy, with a south wind 20 to 30 km/h increasing to 30 to 40 km/h in the afternoon. Winds could gust as high as 60 km/h. Chance of precipitation is 60%.

    High: 23 °C

    Showers
    Likely and
    Breezy

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly clear, with a low around 9. Chance of precipitation is 20%.

    Low: 9 °C

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 14. Breezy.

    High: 14 °C

    Mostly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 6.

    Low: 6 °C

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 14.

    High: 14 °C

    Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 15. North northwest wind 10 to 15 km/h becoming north 20 to 25 km/h in the afternoon. Winds could gust as high as 40 km/h.
Tonight
Partly cloudy, with a low around 3. Southeast wind 10 to 15 km/h becoming north in the evening. Winds could gust as high as 30 km/h.
Monday
Sunny, with a high near 10. East northeast wind 10 to 15 km/h, with gusts as high as 25 km/h.
Monday Night
Mostly clear, with a low around 4. East northeast wind 10 to 15 km/h becoming south southeast after midnight. Winds could gust as high as 25 km/h.
Tuesday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 23. Breezy, with a south wind 20 to 30 km/h increasing to 30 to 40 km/h in the afternoon. Winds could gust as high as 60 km/h. Chance of precipitation is 60%.
Tuesday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly clear, with a low around 9. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 14. Breezy.
Wednesday Night
Partly cloudy, with a low around 6.
Thursday
Sunny, with a high near 14.
Thursday Night
A chance of showers after 1am. Partly cloudy, with a low around 8.
Friday
A chance of showers. Partly sunny, with a high near 22.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 12.
Saturday
Mostly sunny, with a high near 25.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Zion IL
 42.45°N 87.84°W
Last Update:
6:36 am CDT May 10, 2026
Forecast Valid:
7am CDT May 10, 2026-6pm CDT May 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