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

65°F

18°C

Humidity 100%
Wind Speed Calm
Barometer 30.05 in (1016.8 mb)
Dewpoint 65°F (18°C)
Visibility 4.00 mi
Last update 5 Sep 1:55 am CDT

Detailed Forecast

Rest Of Tonight
Partly cloudy. Lows in the upper 60s. Southeast winds 5 to 10 mph.
Saturday
Partly cloudy. A 20 percent chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. South winds 5 to 10 mph.
Saturday Night
Mostly clear. Lows in the lower 70s. South winds 5 to 10 mph.
Sunday
Mostly sunny. Highs in the lower 90s inland...but only in the upper 80s near the lake. South winds 10 to 15 mph.
Sunday Night
Mostly clear in the evening...then partly cloudy with a 30 percent chance of showers and thunderstorms after midnight. Lows in the lower 70s. South winds 5 to 10 mph.
Labor Day
Showers and thunderstorms likely. Highs in the lower 80s. Chance of precipitation 60 percent.
Monday Night
Mostly cloudy with a 40 percent chance of showers and thunderstorms. Lows in the upper 60s.
Tuesday
Showers and thunderstorms likely. Highs in the upper 70s. Chance of precipitation 60 percent.
Tuesday Night
Mostly cloudy with a 40 percent chance of showers and thunderstorms. Lows in the mid 60s.
Wednesday
Partly cloudy with a 30 percent chance of showers and thunderstorms. Highs in the mid 70s.
Wednesday Night Through Friday
Partly cloudy. Lows in the upper 50s. Highs in the mid 70s.



  Click Map For Detailed Forecast
820 PM CDT FRI SEP 4 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