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.

Mostly Cloudy

83°F

28°C

Humidity 57%
Wind Speed S 5 mph
Barometer 30.07 in (1017.0 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 15 Jul 8:53 am CDT
Extended Forecast for

Oak Brook IL

  • Today

    Today: Sunny, with a high near 90. South wind 5 to 10 mph.

    High: 90 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 74. South wind around 5 mph.

    Low: 74 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. Heat index values as high as 98. Southwest wind 5 to 10 mph.

    High: 91 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely, mainly before 1am. Increasing clouds, with a low around 69. Southwest wind 5 to 10 mph. Chance of precipitation is 60%.

    Low: 69 °F

    T-storms
    Likely

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 77. West wind 10 to 15 mph becoming north northeast in the afternoon. Winds could gust as high as 20 mph.

    High: 77 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 62.

    Low: 62 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers and thunderstorms. Partly sunny, with a high near 85.

    High: 85 °F

    Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 90. South wind 5 to 10 mph.
Tonight
Partly cloudy, with a low around 74. South wind around 5 mph.
Wednesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. Heat index values as high as 98. Southwest wind 5 to 10 mph.
Wednesday Night
Showers and thunderstorms likely, mainly before 1am. Increasing clouds, with a low around 69. Southwest wind 5 to 10 mph. Chance of precipitation is 60%.
Thursday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 77. West wind 10 to 15 mph becoming north northeast in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Mostly cloudy, with a low around 62.
Friday
Mostly sunny, with a high near 80.
Friday Night
Partly cloudy, with a low around 66.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 85.
Saturday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 69.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 85.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Oak Brook IL
 41.82°N 87.94°W
Last Update:
9:07 am CDT Jul 15, 2025
Forecast Valid:
9am CDT Jul 15, 2025-6pm CDT Jul 21, 2025
 
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