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.

Marginal Risk of Severe Storms Northern Plains to Northern Great Lake States

Strong thunderstorms are also possible across the Ohio Valley and the Carolinas. Storms may contain damaging winds and heavy rain. Critical fire weather conditions persist ahead of a cold front moving into the Pacific Northwest. Behind the front, much colder air with high elevation snow will occur.
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Hazardous Weather Conditions

Current conditions at

Chicago, Chicago Midway Airport (KMDW)

Lat: 41.78°NLon: 87.76°WElev: 617ft.

A Few Clouds

74°F

23°C

Humidity 76%
Wind Speed E 6 mph
Barometer 30.06 in (1016.8 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 4 Sep 9:53 pm CDT
Extended Forecast for

Chicago IL

  • Tonight

    Tonight: Partly cloudy, with a low around 71. East wind around 5 mph.

    Partly Cloudy

    Low: 71 °F

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 91. Heat index values as high as 97. South wind 5 to 10 mph.

    Mostly Sunny
    then Slight
    Chance
    T-storms

    High: 91 °F

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 75. South wind around 5 mph.

    Partly Cloudy

    Low: 75 °F

  • Sunday

    Sunday: 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.

    Mostly Sunny

    High: 92 °F

  • Sunday
    Night

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

    Partly Cloudy

    Low: 74 °F

  • Labor
    Day

    Labor Day: A 40 percent chance of showers and thunderstorms.  Partly sunny, with a high near 87.

    Chance
    T-storms

    High: 87 °F

  • Monday
    Night

    Monday Night: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 71.

    Chance
    T-storms

    Low: 71 °F

  • Tuesday

    Tuesday: Showers and thunderstorms likely.  Mostly cloudy, with a high near 81.

    T-storms
    Likely

    High: 81 °F

  • Tuesday
    Night

    Tuesday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 68.

    Chance
    T-storms

    Low: 68 °F

Detailed Forecast

Tonight
Partly cloudy, with a low around 71. East wind around 5 mph.
Saturday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. Heat index values as high as 97. South wind 5 to 10 mph.
Saturday Night
Partly cloudy, with a low around 75. South wind around 5 mph.
Sunday
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 southeast wind around 10 mph.
Labor Day
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
Monday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.
Tuesday
Showers and thunderstorms likely. Mostly cloudy, with a high near 81.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 76.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 62.
Thursday
A slight chance of showers. Mostly sunny, with a high near 76.
Thursday Night
Partly cloudy, with a low around 60.
Friday
Mostly sunny, with a high near 73.
  Click Map For Forecast
Point Forecast:
Chicago IL
 41.84°N 87.68°W
10:16 pm CDT Sep 4, 2015
10pm CDT Sep 4, 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