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

Hazardous Weather Conditions

Current conditions at

Chicago, Chicago Midway Airport (KMDW)

Lat: 41.78°NLon: 87.76°WElev: 617ft.

Thunderstorm Light Rain

74°F

23°C

Humidity 88%
Wind Speed Vrbl 6 mph
Barometer 30.07 in (1017.1 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 2 Jul 11:53 pm CDT
Extended Forecast for

Westchester IL

Flood Advisory until July 3, 02:00am
Click here for hazard details and duration
...
  •  
    Flood Advisory until July 3, 02:00am

    NOW until 2:00am Fri

    Flood Advisory

  • Overnight

    Low: 76 °F

    Heavy Rain

  • Friday

    Friday: Showers and thunderstorms likely, mainly after 3pm. Partly sunny, with a high near 92. Heat index values as high as 101. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 92 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Friday Night

    Friday Night: Showers and thunderstorms likely, mainly before 1am, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 73. Southwest wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 73 °F

    T-storms
    Likely then
    Showers
    Likely

  • Independence Day

    Independence Day: Showers likely and possibly a thunderstorm before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 86. West wind 5 to 10 mph becoming east in the morning. Chance of precipitation is 60%.

    High: 86 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 69. Southeast wind 5 to 10 mph becoming west northwest after midnight. Chance of precipitation is 60%.

    Low: 69 °F

    Showers
    Likely

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84.

    High: 84 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 67.

    Low: 67 °F

    Slight Chance
    T-storms

  • Monday

    Monday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

Detailed Forecast

Overnight
Showers and thunderstorms, mainly before 3am. Some of the storms could produce heavy rainfall. Low around 76. Southwest wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
Showers and thunderstorms likely, mainly after 3pm. Partly sunny, with a high near 92. Heat index values as high as 101. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
Showers and thunderstorms likely, mainly before 1am, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 73. Southwest wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Independence Day
Showers likely and possibly a thunderstorm before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 86. West wind 5 to 10 mph becoming east in the morning. Chance of precipitation is 60%.
Saturday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 69. Southeast wind 5 to 10 mph becoming west northwest after midnight. Chance of precipitation is 60%.
Sunday
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84.
Sunday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 67.
Monday
Mostly sunny, with a high near 83.
Monday Night
Partly cloudy, with a low around 66.
Tuesday
Mostly sunny, with a high near 86.
Tuesday Night
Partly cloudy, with a low around 68.
Wednesday
Mostly sunny, with a high near 88.
Wednesday Night
Partly cloudy, with a low around 68.
Thursday
A chance of showers. Mostly sunny, with a high near 87.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Westchester IL
 41.84°N 87.88°W
Last Update:
12:31 am CDT Jul 3, 2026
Forecast Valid:
12am CDT Jul 3, 2026-6pm CDT Jul 9, 2026
 
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