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 64%
Wind Speed SW 17 G 26 mph
Barometer 29.87 in (1010.7 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 18 May 4:53 pm CDT
Extended Forecast for

Chicago IL

  • Tonight

    Tonight: A slight chance of showers between 3am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 68. South southwest wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    Low: 68 °F

    Mostly Cloudy
    then Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 9am, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.

    High: 84 °F

    Breezy.
    Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms between 8pm and 9pm. Mostly cloudy, with a low around 50. North northwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 50 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 57. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 57 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 46. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    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: Showers likely, mainly after 1pm. Mostly cloudy, with a high near 65.

    High: 65 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A chance of showers. Mostly cloudy, with a low around 53.

    Low: 53 °F

    Chance
    Showers

Detailed Forecast

Tonight
A slight chance of showers between 3am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 68. South southwest wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Tuesday
A chance of showers and thunderstorms before 9am, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.
Tuesday Night
A slight chance of showers and thunderstorms between 8pm and 9pm. Mostly cloudy, with a low around 50. North northwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 57. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 46. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday
Mostly sunny, with a high near 61.
Thursday Night
Mostly cloudy, with a low around 50.
Friday
Showers likely, mainly after 1pm. Mostly cloudy, with a high near 65.
Friday Night
A chance of showers. Mostly cloudy, with a low around 53.
Saturday
Mostly cloudy, with a high near 72.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 56.
Sunday
Partly sunny, with a high near 76.
Sunday Night
Mostly cloudy, with a low around 59.
Memorial Day
Partly sunny, with a high near 80.
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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:
3:26 pm CDT May 18, 2026
Forecast Valid:
4pm CDT May 18, 2026-6pm CDT May 25, 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