On July 7, 2015, NWS implemented changes to the icons depicted on all of its point-forecast pages. Changes include new icon images with increased clarity, 6-hour increments for rapidly changing weather and new color blocks to highlight forecast hazards.

A page depicting all of the new icon images can be accessed here: www.weather.gov/forecast-icons

Changes to the icons were based on analysis of 6,700 public comments collected in 2014. Also, many of these changes are based on the results of a research project led by the National Center for Atmospheric Research.

Users are encouraged to continue to provide comments regarding these changes via email at icons@noaa.gov. NWS will continue to analyze incoming feedback and refine the icons as necessary. Any substantial change to the icons will be facilitated through the NWS public comment/review process.

Active weather from Northern Rockies to Upper Midwest

A storm system in the northern U.S. will bring a variety of weather across several states from the Northern Rockies to the Upper Midwest on Saturday. Several inches of early-season snow are forecast in the higher elevations of Idaho and western Montana. Locally-heavy rain will accompany strong thunderstorms in the northern Plains and Upper Midwest.
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Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fog/Mist

70°F

21°C

Humidity 100%
Wind Speed Calm
Barometer 30.09 in (1018.0 mb)
Dewpoint 70°F (21°C)
Visibility 4.00 mi
Last update 5 Sep 8:55 am CDT
Extended Forecast for

Zion IL

  • Today

    Today: A slight chance of showers and thunderstorms before noon, then a slight chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 84. South southeast wind 5 to 10 mph.  Chance of precipitation is 20%.

    Slight Chance
    T-storms

    High: 84 °F

  • Tonight

    Tonight: Patchy fog after 1am.  Otherwise, partly cloudy, with a low around 70. South southeast wind around 5 mph, with gusts as high as 10 mph.

    Partly Cloudy
    then Patchy
    Fog

    Low: 70 °F

  • Sunday

    Sunday: Patchy fog before 9am.  Otherwise, mostly sunny, with a high near 87. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Patchy Fog
    then Sunny

    High: 87 °F

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 72. South wind around 10 mph.

    Partly Cloudy

    Low: 72 °F

  • Labor
    Day

    Labor Day: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 83. Southwest wind around 10 mph.

    Chance
    T-storms

    High: 83 °F

  • Monday
    Night

    Monday Night: Showers and thunderstorms likely.  Mostly cloudy, with a low around 67. Chance of precipitation is 60%.

    T-storms
    Likely

    Low: 67 °F

  • Tuesday

    Tuesday: Showers and thunderstorms likely.  Cloudy, with a high near 78. Chance of precipitation is 70%.

    T-storms
    Likely

    High: 78 °F

  • Tuesday
    Night

    Tuesday Night: A slight chance of showers and thunderstorms.  Mostly cloudy, with a low around 63.

    Slight Chance
    T-storms

    Low: 63 °F

  • Wednesday

    Wednesday: Mostly sunny, with a high near 75.

    Mostly Sunny

    High: 75 °F

Detailed Forecast

Today
A slight chance of showers and thunderstorms before noon, then a slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 84. South southeast wind 5 to 10 mph. Chance of precipitation is 20%.
Tonight
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 70. South southeast wind around 5 mph, with gusts as high as 10 mph.
Sunday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 87. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Sunday Night
Partly cloudy, with a low around 72. South wind around 10 mph.
Labor Day
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 83. Southwest wind around 10 mph.
Monday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.
Tuesday
Showers and thunderstorms likely. Cloudy, with a high near 78. Chance of precipitation is 70%.
Tuesday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Wednesday
Mostly sunny, with a high near 75.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 61.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 76.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 61.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 71.
  Click Map For Forecast
Point Forecast:
Zion IL
 42.45°N 87.84°W
9:17 am CDT Sep 5, 2015
9am CDT Sep 5, 2015-6pm CDT Sep 11, 2015
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Graph

National Digital Forecast Database