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

Storm Impacting the Southwest U.S.

A slow moving weather disturbance will continue to bring periodic rain showers, a few isolated thunderstorms, and a localized flash flooding across the Southwest. The threat will expand into the Southern Plains Wednesday night. Moderate to heavy snow across the Sierra Nevada and southern Utah Ranges will continue into the overnight period. Read More >

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Overcast

40°F

4°C

Humidity 79%
Wind Speed E 9 mph
Barometer 30.19 in (1023.2 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 19 Nov 5:51 am CST
Extended Forecast for

Zion IL

  • Today

    Today: Cloudy, with a high near 44. East wind around 5 mph.

    High: 44 °F

    Cloudy

  • Tonight

    Tonight: Cloudy, with a low around 40. East southeast wind around 5 mph becoming southwest after midnight.

    Low: 40 °F

    Cloudy

  • Thursday

    Thursday: Cloudy, with a high near 52. South southwest wind 5 to 10 mph.

    High: 52 °F

    Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 41. Southwest wind around 5 mph becoming north northwest after midnight.

    Low: 41 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 50. North northeast wind 5 to 10 mph.

    High: 50 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of rain. Mostly cloudy, with a low around 37.

    Low: 37 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: A 20 percent chance of rain before noon. Mostly sunny, with a high near 51.

    High: 51 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 54.

    High: 54 °F

    Mostly Sunny

Detailed Forecast

Today
Cloudy, with a high near 44. East wind around 5 mph.
Tonight
Cloudy, with a low around 40. East southeast wind around 5 mph becoming southwest after midnight.
Thursday
Cloudy, with a high near 52. South southwest wind 5 to 10 mph.
Thursday Night
Mostly cloudy, with a low around 41. Southwest wind around 5 mph becoming north northwest after midnight.
Friday
Partly sunny, with a high near 50. North northeast wind 5 to 10 mph.
Friday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 37.
Saturday
A 20 percent chance of rain before noon. Mostly sunny, with a high near 51.
Saturday Night
Partly cloudy, with a low around 40.
Sunday
Mostly sunny, with a high near 54.
Sunday Night
Partly cloudy, with a low around 38.
Monday
Mostly sunny, with a high near 52.
Monday Night
Partly cloudy, with a low around 38.
Tuesday
Partly sunny, with a high near 49.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Zion IL
 42.45°N 87.84°W
Last Update:
3:51 am CST Nov 19, 2025
Forecast Valid:
6am CST Nov 19, 2025-6pm CST Nov 25, 2025
 
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