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, Chicago Midway Airport (KMDW)

Lat: 41.78°NLon: 87.76°WElev: 617ft.

Mostly Cloudy

76°F

24°C

Humidity 72%
Wind Speed S 8 mph
Barometer 30.13 in (1019.4 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 5 Sep 10:53 am CDT
Extended Forecast for

Chicago IL

  • Today

    Today: A slight chance of showers and thunderstorms before noon, then a slight chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 88. Southwest wind around 5 mph becoming south southeast in the afternoon. Winds could gust as high as 10 mph.  Chance of precipitation is 20%.

    Slight Chance
    T-storms

    High: 88 °F

  • Tonight

    Tonight: Patchy fog after 1am.  Otherwise, partly cloudy, with a low around 74. South southeast wind around 5 mph, with gusts as high as 10 mph.

    Partly Cloudy
    then Patchy
    Fog

    Low: 74 °F

  • Sunday

    Sunday: Patchy fog before 9am.  Otherwise, mostly sunny, with a high near 92. Heat index values as high as 96. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Patchy Fog
    then Mostly
    Sunny

    High: 92 °F

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 74. South southwest wind around 10 mph.

    Partly Cloudy

    Low: 74 °F

  • Labor
    Day

    Labor Day: A 40 percent chance of showers and thunderstorms, mainly after 1pm.  Partly sunny, with a high near 86. Southwest wind around 10 mph.

    Chance
    T-storms

    High: 86 °F

  • Monday
    Night

    Monday Night: Showers and thunderstorms likely.  Mostly cloudy, with a low around 71. Chance of precipitation is 60%.

    T-storms
    Likely

    Low: 71 °F

  • Tuesday

    Tuesday: Showers and thunderstorms likely.  Cloudy, with a high near 82. Chance of precipitation is 70%.

    T-storms
    Likely

    High: 82 °F

  • Tuesday
    Night

    Tuesday Night: Showers and thunderstorms likely.  Mostly cloudy, with a low around 69.

    T-storms
    Likely

    Low: 69 °F

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms.  Mostly sunny, with a high near 76.

    Slight Chance
    T-storms

    High: 76 °F

Detailed Forecast

Today
A slight chance of showers and thunderstorms before noon, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 88. Southwest wind around 5 mph becoming south southeast in the afternoon. Winds could gust as high as 10 mph. Chance of precipitation is 20%.
Tonight
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 74. 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 92. Heat index values as high as 96. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Sunday Night
Partly cloudy, with a low around 74. South southwest wind around 10 mph.
Labor Day
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 86. Southwest wind around 10 mph.
Monday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.
Tuesday
Showers and thunderstorms likely. Cloudy, with a high near 82. Chance of precipitation is 70%.
Tuesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 69.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 76.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 64.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 78.
Thursday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 73.
  Click Map For Forecast
Point Forecast:
Chicago IL
 41.83°N 87.65°W
10:17 am CDT Sep 5, 2015
11am 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