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

19°F

-7°C

Humidity 92%
Wind Speed Calm
Barometer 30.45 in (1032.6 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Last update 1 Dec 2:53 am CST
Extended Forecast for

Westmont IL

Winter Weather Advisory December 1, 02:00pm until December 2, 12:00am
Click here for hazard details and duration
Winter Weather Advisory

  • Overnight

    Overnight: Mostly cloudy, with a low around 14. West northwest wind around 5 mph becoming calm.

    Low: 14 °F

    Mostly Cloudy

  • Monday

    Monday: Snow, mainly after 1pm. High near 28. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.

    High: 28 °F

    Cloudy then
    Snow

  • Monday Night

    Monday Night: Snow, mainly before midnight. Low around 17. Southeast wind around 5 mph becoming west northwest after midnight. Winds could gust as high as 10 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

    Low: 17 °F

    Snow then
    Chance Snow

  • Tuesday

    Tuesday: Partly sunny, with a high near 25. Northwest wind 5 to 10 mph becoming southwest in the afternoon.

    High: 25 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 18. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 18 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of snow after noon. Cloudy, with a high near 33.

    High: 33 °F

    Mostly Cloudy
    then Chance
    Snow

  • Wednesday Night

    Wednesday Night: A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 3.

    Low: 3 °F

    Chance Snow
    then Partly
    Cloudy

  • Thursday

    Thursday: Sunny, with a high near 15.

    High: 15 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -1.

    Low: -1 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 14. West northwest wind around 5 mph becoming calm.
Monday
Snow, mainly after 1pm. High near 28. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.
Monday Night
Snow, mainly before midnight. Low around 17. Southeast wind around 5 mph becoming west northwest after midnight. Winds could gust as high as 10 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Tuesday
Partly sunny, with a high near 25. Northwest wind 5 to 10 mph becoming southwest in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 18. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday
A 40 percent chance of snow after noon. Cloudy, with a high near 33.
Wednesday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 3.
Thursday
Sunny, with a high near 15.
Thursday Night
Partly cloudy, with a low around -1.
Friday
Partly sunny, with a high near 23.
Friday Night
A chance of snow. Mostly cloudy, with a low around 17.
Saturday
Mostly cloudy, with a high near 29.
Saturday Night
Mostly cloudy, with a low around 20.
Sunday
Mostly cloudy, with a high near 29.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Westmont IL
 41.8°N 87.97°W
Last Update:
1:46 am CST Dec 1, 2025
Forecast Valid:
2am CST Dec 1, 2025-6pm CST Dec 7, 2025
 
Forecast Discussion
 
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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