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

76°F

24°C

Humidity 67%
Wind Speed SW 17 G 28 mph
Barometer 29.85 in (1009.6 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 18 May 7:53 am CDT
Extended Forecast for

Chicago IL

  • Today

    Today: Showers and thunderstorms likely, mainly before 1pm. Mostly cloudy, with a high near 81. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Showers
    Likely and
    Breezy

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 68. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 68 °F

    Chance
    T-storms and
    Breezy

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 81. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Breezy.
    Chance
    T-storms then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 51. North wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 51 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 56. North northeast wind around 15 mph, with gusts as high as 20 mph.

    High: 56 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of showers before 1pm. Mostly cloudy, with a high near 65.

    High: 65 °F

    Chance
    Showers

Detailed Forecast

Today
Showers and thunderstorms likely, mainly before 1pm. Mostly cloudy, with a high near 81. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A 40 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 68. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 81. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 51. North wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday
Partly sunny, with a high near 56. North northeast wind around 15 mph, with gusts as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 46.
Thursday
Mostly sunny, with a high near 61.
Thursday Night
Mostly cloudy, with a low around 50.
Friday
A chance of showers before 1pm. Mostly cloudy, with a high near 65.
Friday Night
A chance of showers before 1am. Mostly cloudy, with a low around 54.
Saturday
Partly sunny, with a high near 68.
Saturday Night
Mostly cloudy, with a low around 56.
Sunday
Mostly sunny, with a high near 71.
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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:
5:51 am CDT May 18, 2026
Forecast Valid:
8am CDT May 18, 2026-6pm CDT May 24, 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