National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Chicago, Chicago Midway Airport (KMDW)

Lat: 41.78°NLon: 87.76°WElev: 617ft.

Mostly Cloudy

53°F

12°C

Humidity 66%
Wind Speed S 10 mph
Barometer 29.93 in (1013.7 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 21 Mar 9:53 am CDT
Extended Forecast for

Westchester IL

  • Today

    Today: Mostly sunny, with a high near 78. South southeast wind 10 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 30 mph.

    High: 78 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 42. Southwest wind 10 to 15 mph becoming north after midnight. Winds could gust as high as 25 mph.

    Low: 42 °F

    Partly Cloudy

  • Sunday

    Sunday: A 40 percent chance of rain, mainly after 10am. Mostly cloudy, with a temperature falling to around 39 by 5pm. Breezy, with a north northeast wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 43 °F⇓

    Chance Rain
    and Breezy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 32. North wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 32 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 44. North wind 5 to 10 mph.

    High: 44 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 56.

    High: 56 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 54.

    High: 54 °F

    Mostly Cloudy

Detailed Forecast

Today
Mostly sunny, with a high near 78. South southeast wind 10 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 30 mph.
Tonight
Partly cloudy, with a low around 42. Southwest wind 10 to 15 mph becoming north after midnight. Winds could gust as high as 25 mph.
Sunday
A 40 percent chance of rain, mainly after 10am. Mostly cloudy, with a temperature falling to around 39 by 5pm. Breezy, with a north northeast wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Mostly cloudy, with a low around 32. North wind 10 to 15 mph, with gusts as high as 25 mph.
Monday
Mostly sunny, with a high near 44. North wind 5 to 10 mph.
Monday Night
Mostly cloudy, with a low around 33.
Tuesday
Mostly cloudy, with a high near 56.
Tuesday Night
Mostly cloudy, with a low around 40.
Wednesday
Mostly cloudy, with a high near 54.
Wednesday Night
Mostly cloudy, with a low around 46.
Thursday
A chance of showers. Mostly cloudy, with a high near 64.
Thursday Night
Mostly cloudy, with a low around 34.
Friday
Partly sunny, with a high near 44.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Westchester IL
 41.84°N 87.88°W
Last Update:
8:56 am CDT Mar 21, 2026
Forecast Valid:
10am CDT Mar 21, 2026-6pm CDT Mar 27, 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