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.

Overcast

31°F

-1°C

Humidity 79%
Wind Speed N 17 G 35 mph
Barometer 30.18 in (1022.7 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill20°F (-7°C)
Last update 26 Mar 11:51 pm CDT
Extended Forecast for

Zion IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 29. Windy, with a north northeast wind 20 to 30 mph, with gusts as high as 40 mph.

    Low: 29 °F

    Mostly Cloudy
    and Windy

  • Friday

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

    High: 39 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 26. Northwest wind 5 to 15 mph.

    Low: 26 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 47. West northwest wind 5 to 15 mph becoming south in the afternoon. Winds could gust as high as 20 mph.

    High: 47 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 38. South southwest wind around 15 mph.

    Low: 38 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 61.

    High: 61 °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 61.

    High: 61 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 45.

    Low: 45 °F

    Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

Overnight
Mostly cloudy, with a low around 29. Windy, with a north northeast wind 20 to 30 mph, with gusts as high as 40 mph.
Friday
Partly sunny, with a high near 39. North wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night
Partly cloudy, with a low around 26. Northwest wind 5 to 15 mph.
Saturday
Mostly sunny, with a high near 47. West northwest wind 5 to 15 mph becoming south in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Mostly cloudy, with a low around 38. South southwest wind around 15 mph.
Sunday
Partly sunny, with a high near 61.
Sunday Night
Partly cloudy, with a low around 44.
Monday
Mostly sunny, with a high near 61.
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 65.
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 56.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 40.
Thursday
A chance of showers. Mostly cloudy, with a high near 50.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Zion IL
 42.45°N 87.84°W
Last Update:
11:41 pm CDT Mar 26, 2026
Forecast Valid:
12am CDT Mar 27, 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