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.

Mostly Cloudy

76°F

24°C

Humidity 64%
Wind Speed NE 9 mph
Barometer 30.02 in (1015.8 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 17 Aug 2:53 pm CDT
Extended Forecast for

Chicago IL

  • This Afternoon

    This Afternoon: Isolated showers before 4pm. Mostly sunny, with a high near 76. Northeast wind around 10 mph. Chance of precipitation is 20%.

    High: 76 °F

    Isolated
    Showers

  • Tonight

    Tonight: Mostly clear, with a low around 65. Calm wind becoming southwest around 5 mph after midnight.

    Low: 65 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 81. West southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 81 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 7pm, then showers likely and possibly a thunderstorm between 7pm and 1am, then a chance of showers after 1am. Mostly cloudy, with a low around 68. Southwest wind 5 to 10 mph becoming west northwest after midnight. Chance of precipitation is 60%.

    Low: 68 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Mostly sunny, with a high near 78. Northwest wind around 5 mph becoming northeast in the afternoon.

    High: 78 °F

    Mostly Sunny

  • Wednesday Night

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

    Low: 66 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Isolated showers before 4pm. Mostly sunny, with a high near 76. Northeast wind around 10 mph. Chance of precipitation is 20%.
Tonight
Mostly clear, with a low around 65. Calm wind becoming southwest around 5 mph after midnight.
Tuesday
A 20 percent chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 81. West southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
A chance of showers and thunderstorms before 7pm, then showers likely and possibly a thunderstorm between 7pm and 1am, then a chance of showers after 1am. Mostly cloudy, with a low around 68. Southwest wind 5 to 10 mph becoming west northwest after midnight. Chance of precipitation is 60%.
Wednesday
Mostly sunny, with a high near 78. Northwest wind around 5 mph becoming northeast in the afternoon.
Wednesday Night
Partly cloudy, with a low around 66.
Thursday
Sunny, with a high near 78.
Thursday Night
Mostly clear, with a low around 64.
Friday
Mostly sunny, with a high near 80.
Friday Night
A chance of showers. Partly cloudy, with a low around 66.
Saturday
A chance of showers. Mostly sunny, with a high near 78.
Saturday Night
Partly cloudy, with a low around 63.
Sunday
Mostly sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chicago IL
 41.84°N 87.68°W
Last Update:
2:46 pm CDT Aug 17, 2026
Forecast Valid:
3pm CDT Aug 17, 2026-6pm CDT Aug 23, 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