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.

Light Snow Fog/Mist

24°F

-4°C

Humidity 84%
Wind Speed S 12 mph
Barometer 30.08 in (1020.2 mb)
Dewpoint 20°F (-7°C)
Visibility 3.00 mi
Wind Chill13°F (-11°C)
Last update 18 Mar 3:53 am CDT
Extended Forecast for

Westchester IL

  • Overnight

    Overnight: Snow showers. Low around 21. South wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of less than one inch possible.

    Low: 21 °F

    Snow Showers

  • Wednesday

    Wednesday: Snow showers, mainly before 7am. High near 43. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 43 °F

    Snow Showers
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: Scattered showers after 1am. Mostly cloudy, with a low around 34. Southwest wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 40%.

    Low: 34 °F

    Mostly Cloudy
    then
    Scattered
    Showers

  • Thursday

    Thursday: Scattered showers before 1pm. Partly sunny, with a high near 52. South southwest wind around 5 mph becoming north northeast in the afternoon. Chance of precipitation is 30%.

    High: 52 °F

    Scattered
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 40. Northeast wind around 5 mph becoming south southwest after midnight.

    Low: 40 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 66.

    High: 66 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Snow showers. Low around 21. South wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of less than one inch possible.
Wednesday
Snow showers, mainly before 7am. High near 43. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Wednesday Night
Scattered showers after 1am. Mostly cloudy, with a low around 34. Southwest wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 40%.
Thursday
Scattered showers before 1pm. Partly sunny, with a high near 52. South southwest wind around 5 mph becoming north northeast in the afternoon. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 40. Northeast wind around 5 mph becoming south southwest after midnight.
Friday
Mostly cloudy, with a high near 66.
Friday Night
Mostly cloudy, with a low around 41.
Saturday
Mostly sunny, with a high near 66.
Saturday Night
Mostly cloudy, with a low around 45.
Sunday
Mostly cloudy, with a high near 59.
Sunday Night
Mostly cloudy, with a low around 31.
Monday
Partly sunny, with a high near 43.
Monday Night
Mostly cloudy, with a low around 31.
Tuesday
Partly sunny, with a high near 52.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Westchester IL
 41.84°N 87.88°W
Last Update:
3:46 am CDT Mar 18, 2026
Forecast Valid:
4am CDT Mar 18, 2026-6pm CDT Mar 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation