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.

Overcast

24°F

-4°C

Humidity 84%
Wind Speed SW 14 mph
Barometer 29.99 in (1017.0 mb)
Dewpoint 20°F (-7°C)
Visibility 7.00 mi
Wind Chill12°F (-11°C)
Last update 3 Dec 7:53 am CST
Extended Forecast for

Westmont IL

  • Today

    Today: A 40 percent chance of snow, mainly before 3pm. Cloudy, with a high near 31. Southwest wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 31 °F

    Chance Snow

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 3. Wind chill values as low as -11. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 3 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Sunny, with a high near 16. Wind chill values as low as -11. Northwest wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph.

    High: 16 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around -1. Wind chill values as low as -9. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: -1 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 24. Southwest wind around 10 mph, with gusts as high as 20 mph.

    High: 24 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 17.

    Low: 17 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 28.

    High: 28 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A chance of snow after midnight. Mostly cloudy, with a low around 16.

    Low: 16 °F

    Mostly Cloudy
    then Chance
    Snow

  • Sunday

    Sunday: A chance of snow. Mostly cloudy, with a high near 30.

    High: 30 °F

    Chance Snow

Detailed Forecast

Today
A 40 percent chance of snow, mainly before 3pm. Cloudy, with a high near 31. Southwest wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 3. Wind chill values as low as -11. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 16. Wind chill values as low as -11. Northwest wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph.
Thursday Night
Mostly clear, with a low around -1. Wind chill values as low as -9. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Friday
Partly sunny, with a high near 24. Southwest wind around 10 mph, with gusts as high as 20 mph.
Friday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 17.
Saturday
Mostly cloudy, with a high near 28.
Saturday Night
A chance of snow after midnight. Mostly cloudy, with a low around 16.
Sunday
A chance of snow. Mostly cloudy, with a high near 30.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 15.
Monday
Partly sunny, with a high near 26.
Monday Night
A chance of snow. Mostly cloudy, with a low around 18.
Tuesday
A chance of snow. Mostly cloudy, with a high near 31.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Westmont IL
 41.8°N 87.97°W
Last Update:
3:11 am CST Dec 3, 2025
Forecast Valid:
9am CST Dec 3, 2025-6pm CST Dec 9, 2025
 
Forecast Discussion
 
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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