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 55%
Wind Speed SW 13 mph
Barometer 29.89 in (1011.1 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 21 Sep 2:53 pm CDT
Extended Forecast for

Chicago IL

  • This Afternoon

    This Afternoon: Isolated showers and thunderstorms. Partly sunny, with a high near 80. South southwest wind around 10 mph. Chance of precipitation is 20%.

    High: 80 °F

    Isolated
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly after 10pm. Mostly cloudy, with a low around 66. South wind around 5 mph becoming calm.

    Low: 66 °F

    Chance
    Showers

  • Monday

    Monday: A chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 77. South southwest wind 5 to 10 mph. Chance of precipitation is 40%.

    High: 77 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 65. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.

    Low: 65 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 74. Light and variable wind becoming northeast 5 to 10 mph in the morning. Chance of precipitation is 30%.

    High: 74 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 20%.

    Low: 64 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers after 4pm. Mostly cloudy, with a high near 70. Chance of precipitation is 40%.

    High: 70 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers. Mostly cloudy, with a low around 62.

    Low: 62 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers. Partly sunny, with a high near 69.

    High: 69 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Isolated showers and thunderstorms. Partly sunny, with a high near 80. South southwest wind around 10 mph. Chance of precipitation is 20%.
Tonight
A 30 percent chance of showers and thunderstorms, mainly after 10pm. Mostly cloudy, with a low around 66. South wind around 5 mph becoming calm.
Monday
A chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 77. South southwest wind 5 to 10 mph. Chance of precipitation is 40%.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 65. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 74. Light and variable wind becoming northeast 5 to 10 mph in the morning. Chance of precipitation is 30%.
Tuesday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 20%.
Wednesday
A chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers after 4pm. Mostly cloudy, with a high near 70. Chance of precipitation is 40%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 62.
Thursday
A chance of showers. Partly sunny, with a high near 69.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 59.
Friday
A chance of showers. Mostly sunny, with a high near 71.
Friday Night
Partly cloudy, with a low around 59.
Saturday
Sunny, with a high near 74.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Chicago IL
 41.84°N 87.68°W
Last Update:
2:06 pm CDT Sep 21, 2025
Forecast Valid:
3pm CDT Sep 21, 2025-6pm CDT Sep 27, 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