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

15°F

-9°C

Humidity 74%
Wind Speed W 15 G 25 mph
Barometer 30.08 in (1020.5 mb)
Dewpoint 8°F (-13°C)
Visibility 5.00 mi
Wind Chill0°F (-18°C)
Last update 17 Jan 11:53 pm CST
Extended Forecast for

Westmont IL

  • Overnight

    Overnight: A chance of snow, mainly before 1am, then a chance of flurries after 2am. Cloudy, with a low around 9. Wind chill values as low as -4. West wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.

    Low: 9 °F

    Chance Snow

  • Sunday

    Sunday: Snow likely, mainly after 4pm. Cloudy, with a high near 20. Wind chill values as low as -6. Southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 20 °F

    Mostly Cloudy
    then Snow
    Likely

  • Sunday Night

    Sunday Night: Snow likely, mainly before 11pm. Mostly cloudy, with a low around 2. Wind chill values as low as -17. Blustery, with a southwest wind 10 to 15 mph becoming west northwest 20 to 25 mph after midnight. Winds could gust as high as 35 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 2 °F

    Snow Likely
    and Breezy
    then Slight
    Chance Snow
    and Blustery

  • M.L.King Day

    M.L.King Day: Partly sunny and cold, with a high near 9. Wind chill values as low as -18. Blustery, with a west wind 15 to 20 mph, with gusts as high as 35 mph.

    High: 9 °F

    Cold and
    Blustery

  • Monday Night

    Monday Night: Partly cloudy, with a low around 2. West wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 2 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 23.

    High: 23 °F

    Mostly Sunny

  • Tuesday Night

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

    Low: 18 °F

    Chance Snow

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 30.

    High: 30 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 11.

    Low: 11 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A chance of snow, mainly before 1am, then a chance of flurries after 2am. Cloudy, with a low around 9. Wind chill values as low as -4. West wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Sunday
Snow likely, mainly after 4pm. Cloudy, with a high near 20. Wind chill values as low as -6. Southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Sunday Night
Snow likely, mainly before 11pm. Mostly cloudy, with a low around 2. Wind chill values as low as -17. Blustery, with a southwest wind 10 to 15 mph becoming west northwest 20 to 25 mph after midnight. Winds could gust as high as 35 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
M.L.King Day
Partly sunny and cold, with a high near 9. Wind chill values as low as -18. Blustery, with a west wind 15 to 20 mph, with gusts as high as 35 mph.
Monday Night
Partly cloudy, with a low around 2. West wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 23.
Tuesday Night
A 40 percent chance of snow, mainly after midnight. Mostly cloudy, with a low around 18.
Wednesday
Mostly cloudy, with a high near 30.
Wednesday Night
Mostly cloudy, with a low around 11.
Thursday
Mostly sunny, with a high near 21.
Thursday Night
Mostly cloudy, with a low around 13.
Friday
Partly sunny, with a high near 27.
Friday Night
Mostly cloudy, with a low around 8.
Saturday
A chance of snow. Mostly cloudy, with a high near 19.
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ABOUT THIS FORECAST

 
Point Forecast:
Westmont IL
 41.8°N 87.97°W
Last Update:
11:41 pm CST Jan 17, 2026
Forecast Valid:
12am CST Jan 18, 2026-6pm CST Jan 24, 2026
 
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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