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

Chicago, Chicago Midway Airport (KMDW)

Lat: 41.78°NLon: 87.76°WElev: 617ft.

A Few Clouds

67°F

19°C

Humidity 76%
Wind Speed Calm
Barometer 30.06 in (1017.1 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 21 Aug 1:53 am CDT
Extended Forecast for

Chicago IL

  • Overnight

    Overnight: Partly cloudy, with a low around 63. Calm wind becoming west around 5 mph.

    Low: 63 °F

    Partly Cloudy

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 79. South wind 5 to 10 mph.

    High: 79 °F

    Partly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 66. Southwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    T-storms
    Likely then
    Chance
    T-storms

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 79. North northwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 79 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 63. North northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 63 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 63. Calm wind becoming west around 5 mph.
Friday
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 79. South wind 5 to 10 mph.
Friday Night
Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 66. Southwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 79. North northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday Night
Mostly clear, with a low around 63. North northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Sunday
Sunny, with a high near 75.
Sunday Night
Partly cloudy, with a low around 61.
Monday
Mostly sunny, with a high near 75.
Monday Night
Partly cloudy, with a low around 63.
Tuesday
Mostly sunny, with a high near 79.
Tuesday Night
Mostly cloudy, with a low around 66.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 81.
Wednesday Night
Partly cloudy, with a low around 66.
Thursday
Mostly sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chicago IL
 41.84°N 87.68°W
Last Update:
1:16 am CDT Aug 21, 2026
Forecast Valid:
2am CDT Aug 21, 2026-6pm CDT Aug 27, 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