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

66°F

19°C

Humidity 65%
Wind Speed Vrbl 3 mph
Barometer 30.13 in (1019.4 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 8 Sep 5:53 am CDT
Extended Forecast for

Westchester IL

  • Today

    Today: Mostly sunny, with a high near 87. Southeast wind 5 to 10 mph becoming southwest in the afternoon.

    High: 87 °F

    Mostly Sunny

  • Tonight

    Tonight: A 30 percent chance of showers, mainly after 5am. Mostly cloudy, with a low around 74. Southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 74 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: Showers and thunderstorms, mainly before 1pm. High near 83. West wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Showers then
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 67. West wind around 5 mph becoming north northwest after midnight.

    Low: 67 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 80. North wind around 5 mph, with gusts as high as 10 mph.

    High: 80 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Saturday

    Saturday: A chance of showers before 1pm. Partly sunny, with a high near 84.

    High: 84 °F

    Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 87. Southeast wind 5 to 10 mph becoming southwest in the afternoon.
Tonight
A 30 percent chance of showers, mainly after 5am. Mostly cloudy, with a low around 74. Southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday
Showers and thunderstorms, mainly before 1pm. High near 83. West wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Partly cloudy, with a low around 67. West wind around 5 mph becoming north northwest after midnight.
Thursday
Mostly sunny, with a high near 80. North wind around 5 mph, with gusts as high as 10 mph.
Thursday Night
Mostly clear, with a low around 60.
Friday
Sunny, with a high near 81.
Friday Night
Mostly clear, with a low around 65.
Saturday
A chance of showers before 1pm. Partly sunny, with a high near 84.
Saturday Night
A chance of showers after 1am. Partly cloudy, with a low around 65.
Sunday
A chance of showers. Partly sunny, with a high near 81.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 66.
Monday
A chance of showers. Partly sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Westchester IL
 41.84°N 87.88°W
Last Update:
2:46 am CDT Sep 8, 2026
Forecast Valid:
7am CDT Sep 8, 2026-6pm CDT Sep 14, 2026
 
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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