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.

Fair

35°F

2°C

Humidity 72%
Wind Speed NW 12 mph
Barometer 30.13 in (1021.2 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 11 Mar 9:53 pm CDT
Extended Forecast for

Westchester IL

  • Tonight

    Tonight: Clear, with a low around 30. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 30 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 47. West wind 5 to 15 mph.

    High: 47 °F

    Sunny

  • Thursday Night

    Thursday Night: Showers likely, mainly after 1am. Cloudy, with a low around 39. Windy, with a south wind 15 to 20 mph increasing to 25 to 30 mph after midnight. Winds could gust as high as 45 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 39 °F

    Showers
    Likely and
    Windy

  • Friday

    Friday: Partly sunny, with a high near 48. Very windy, with a west wind 30 to 35 mph, with gusts as high as 55 mph.

    High: 48 °F

    Partly Sunny
    and Very
    Windy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 30. West northwest wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 30 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of snow after 1pm. Mostly cloudy, with a high near 42.

    High: 42 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Saturday Night

    Saturday Night: Rain and snow showers likely, mainly after 1am. Cloudy, with a low around 34. Chance of precipitation is 60%.

    Low: 34 °F

    Rain/Snow
    Likely

  • Sunday

    Sunday: Rain and snow showers, becoming all rain after 1pm. Cloudy, with a high near 50. Breezy.

    High: 50 °F

    Rain/Snow and
    Breezy

  • Sunday Night

    Sunday Night: Rain and snow showers likely before 1am, then a chance of snow showers. Cloudy, with a low around 19. Blustery.

    Low: 19 °F

    Rain/Snow
    Likely and
    Blustery

Detailed Forecast

Tonight
Clear, with a low around 30. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 47. West wind 5 to 15 mph.
Thursday Night
Showers likely, mainly after 1am. Cloudy, with a low around 39. Windy, with a south wind 15 to 20 mph increasing to 25 to 30 mph after midnight. Winds could gust as high as 45 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Partly sunny, with a high near 48. Very windy, with a west wind 30 to 35 mph, with gusts as high as 55 mph.
Friday Night
Mostly cloudy, with a low around 30. West northwest wind 5 to 15 mph, with gusts as high as 25 mph.
Saturday
A 20 percent chance of snow after 1pm. Mostly cloudy, with a high near 42.
Saturday Night
Rain and snow showers likely, mainly after 1am. Cloudy, with a low around 34. Chance of precipitation is 60%.
Sunday
Rain and snow showers, becoming all rain after 1pm. Cloudy, with a high near 50. Breezy.
Sunday Night
Rain and snow showers likely before 1am, then a chance of snow showers. Cloudy, with a low around 19. Blustery.
Monday
Mostly cloudy, with a high near 27. Blustery.
Monday Night
Mostly cloudy, with a low around 11.
Tuesday
Mostly sunny, with a high near 30.
Tuesday Night
Partly cloudy, with a low around 22.
Wednesday
Mostly cloudy, with a high near 41.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Westchester IL
 41.84°N 87.88°W
Last Update:
9:51 pm CDT Mar 11, 2026
Forecast Valid:
10pm CDT Mar 11, 2026-6pm CDT Mar 18, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation