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

27°C

81°F

Humidity 77%
Wind Speed SW 19 km/h
Barometer 1015.7 mb (30.03 in)
Dewpoint 23°C (73°F)
Visibility 16 km
Heat Index30°C (86°F)
Last update 15 Aug 2:53 pm CDT
Extended Forecast for

Chicago IL

  • This Afternoon

    This Afternoon: A 50 percent chance of showers. Mostly cloudy, with a high near 26. South southwest wind around 10 km/h, with gusts as high as 20 km/h.

    High: 26 °C

    Chance
    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 23. South wind around 10 km/h. Chance of precipitation is 60%. New rainfall amounts between 7.5 mm and 1 cm possible.

    Low: 23 °C

    Slight Chance
    T-storms then
    Showers
    Likely

  • Sunday

    Sunday: A chance of showers and thunderstorms before 11am, then a slight chance of showers and thunderstorms after 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 30. Heat index values as high as 35. West northwest wind 10 to 20 km/h, with gusts as high as 30 km/h. Chance of precipitation is 30%.

    High: 30 °C

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A slight chance of showers between 9pm and 11pm. Mostly cloudy, with a low around 21. North northwest wind around 15 km/h. Chance of precipitation is 20%.

    Low: 21 °C

    Slight Chance
    Showers then
    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 26. North northeast wind around 10 km/h, with gusts as high as 20 km/h.

    High: 26 °C

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 19.

    Low: 19 °C

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 28.

    High: 28 °C

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 19.

    Low: 19 °C

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers before 1pm. Mostly cloudy, with a high near 24.

    High: 24 °C

    Chance
    Showers

Detailed Forecast

This Afternoon
A 50 percent chance of showers. Mostly cloudy, with a high near 26. South southwest wind around 10 km/h, with gusts as high as 20 km/h.
Tonight
A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 23. South wind around 10 km/h. Chance of precipitation is 60%. New rainfall amounts between 7.5 mm and 1 cm possible.
Sunday
A chance of showers and thunderstorms before 11am, then a slight chance of showers and thunderstorms after 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 30. Heat index values as high as 35. West northwest wind 10 to 20 km/h, with gusts as high as 30 km/h. Chance of precipitation is 30%.
Sunday Night
A slight chance of showers between 9pm and 11pm. Mostly cloudy, with a low around 21. North northwest wind around 15 km/h. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 26. North northeast wind around 10 km/h, with gusts as high as 20 km/h.
Monday Night
Mostly clear, with a low around 19.
Tuesday
Mostly sunny, with a high near 28.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 19.
Wednesday
A chance of showers before 1pm. Mostly cloudy, with a high near 24.
Wednesday Night
Partly cloudy, with a low around 17.
Thursday
Mostly sunny, with a high near 24.
Thursday Night
Partly cloudy, with a low around 17.
Friday
Mostly sunny, with a high near 25.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Chicago IL
 41.86°N 87.68°W
Last Update:
2:51 pm CDT Aug 15, 2026
Forecast Valid:
3pm CDT Aug 15, 2026-6pm CDT Aug 21, 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