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

Hazardous Weather Conditions

Current conditions at

Chicago, Chicago-O'Hare International Airport (KORD)

Lat: 41.98°NLon: 87.9°WElev: 666ft.

A Few Clouds

8°F

-13°C

Humidity 57%
Wind Speed N 12 mph
Barometer 30.40 in (1030.6 mb)
Dewpoint -4°F (-20°C)
Visibility 10.00 mi
Wind Chill-7°F (-22°C)
Last update 4 Dec 8:51 am CST
Extended Forecast for

Westchester IL

  • Today

    Today: Sunny, with a high near 18. Wind chill values as low as -4. North northwest wind around 5 mph becoming south southwest in the afternoon. Winds could gust as high as 15 mph.

    High: 18 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 4. Wind chill values as low as -10. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 4 °F

    Increasing
    Clouds

  • Friday

    Friday: Partly sunny, with a high near 28. Wind chill values as low as -4. South southwest wind around 10 mph, with gusts as high as 20 mph.

    High: 28 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of snow, mainly before midnight. Cloudy, with a low around 23. Southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 23 °F

    Chance Snow

  • Saturday

    Saturday: Mostly cloudy, with a high near 30. West wind 5 to 10 mph.

    High: 30 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 40 percent chance of snow, mainly after midnight. Mostly cloudy, with a low around 18.

    Low: 18 °F

    Chance Snow

  • Sunday

    Sunday: A 30 percent chance of snow before noon. Partly sunny, with a high near 28.

    High: 28 °F

    Chance Snow
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 12.

    Low: 12 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 24.

    High: 24 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 18. Wind chill values as low as -4. North northwest wind around 5 mph becoming south southwest in the afternoon. Winds could gust as high as 15 mph.
Tonight
Increasing clouds, with a low around 4. Wind chill values as low as -10. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Friday
Partly sunny, with a high near 28. Wind chill values as low as -4. South southwest wind around 10 mph, with gusts as high as 20 mph.
Friday Night
A 30 percent chance of snow, mainly before midnight. Cloudy, with a low around 23. Southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Saturday
Mostly cloudy, with a high near 30. West wind 5 to 10 mph.
Saturday Night
A 40 percent chance of snow, mainly after midnight. Mostly cloudy, with a low around 18.
Sunday
A 30 percent chance of snow before noon. Partly sunny, with a high near 28.
Sunday Night
Mostly cloudy, with a low around 12.
Monday
Partly sunny, with a high near 24.
Monday Night
A chance of snow. Mostly cloudy, with a low around 16.
Tuesday
A chance of snow. Mostly cloudy, with a high near 33.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 24.
Wednesday
A chance of rain and snow. Mostly cloudy, with a high near 34.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Westchester IL
 41.87°N 87.88°W
Last Update:
6:11 am CST Dec 4, 2025
Forecast Valid:
9am CST Dec 4, 2025-6pm CST Dec 10, 2025
 
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Additional Resources

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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