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.

A Few Clouds

82°F

28°C

Humidity 72%
Wind Speed SW 9 mph
Barometer 29.95 in (1012.7 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 2 Sep 12:53 am CDT
Extended Forecast for

4 Miles ESE Chicago IL

Heat Advisory September 2, 12:00pm until September 2, 09:00pm
Click here for hazard details and duration
Heat Advisory

  • Overnight

    Overnight: Mostly clear, with a low around 77. Southwest wind 5 to 10 mph.

    Low: 77 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 93. Heat index values as high as 98. West southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 93 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 76. Southwest wind 5 to 10 mph.

    Low: 76 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90. Heat index values as high as 97. Southwest wind around 5 mph becoming north in the afternoon.

    High: 90 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74. South southeast wind around 5 mph.

    Low: 74 °F

    Chance
    T-storms

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 83.

    High: 83 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 72.

    Low: 72 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 84.

    High: 84 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 77. Southwest wind 5 to 10 mph.
Wednesday
Sunny, with a high near 93. Heat index values as high as 98. West southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 76. Southwest wind 5 to 10 mph.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90. Heat index values as high as 97. Southwest wind around 5 mph becoming north in the afternoon.
Thursday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74. South southeast wind around 5 mph.
Friday
A 50 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 83.
Friday Night
A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 72.
Saturday
A chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 84.
Saturday Night
Partly cloudy, with a low around 71.
Sunday
A chance of showers before 1pm. Partly sunny, with a high near 82.
Sunday Night
Mostly cloudy, with a low around 68.
Labor Day
Partly sunny, with a high near 80.
Monday Night
Mostly cloudy, with a low around 66.
Tuesday
Partly sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ESE Chicago IL
 41.83°N 87.62°W
Last Update:
1:01 am CDT Sep 2, 2026
Forecast Valid:
1am CDT Sep 2, 2026-6pm CDT Sep 8, 2026
 
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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