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

10°F

-12°C

Humidity 76%
Wind Speed SW 14 mph
Barometer 30.06 in (1020.0 mb)
Dewpoint 4°F (-16°C)
Visibility 8.00 mi
Wind Chill-6°F (-21°C)
Last update 18 Jan 3:53 am CST
Extended Forecast for

Westmont IL

Cold Weather Advisory January 19, 03:00am until January 19, 10:00am
Click here for hazard details and duration
Cold Weather Advisory

  • Overnight

    Overnight: A chance of flurries. Mostly cloudy, with a low around 8. Wind chill values as low as -5. West southwest wind 10 to 15 mph.

    Low: 8 °F

    Chance
    Flurries

  • Sunday

    Sunday: Snow likely, mainly after 5pm. Mostly 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 60%. New snow accumulation of less than a half inch possible.

    High: 20 °F

    Partly Sunny
    then Snow
    Likely

  • Sunday Night

    Sunday Night: Snow, mainly before 11pm. 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 90%. New snow accumulation of less than one inch possible.

    Low: 2 °F

    Snow and
    Breezy then
    Slight Chance
    Snow and
    Blustery

  • M.L.King Day

    M.L.King Day: Mostly sunny and cold, with a high near 8. Wind chill values as low as -19. Blustery, with a west wind 15 to 20 mph, with gusts as high as 35 mph.

    High: 8 °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 22.

    High: 22 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 16.

    Low: 16 °F

    Chance Snow

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 29.

    High: 29 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 12.

    Low: 12 °F

    Partly Cloudy

Detailed Forecast

Overnight
A chance of flurries. Mostly cloudy, with a low around 8. Wind chill values as low as -5. West southwest wind 10 to 15 mph.
Sunday
Snow likely, mainly after 5pm. Mostly 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 60%. New snow accumulation of less than a half inch possible.
Sunday Night
Snow, mainly before 11pm. 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 90%. New snow accumulation of less than one inch possible.
M.L.King Day
Mostly sunny and cold, with a high near 8. Wind chill values as low as -19. 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 22.
Tuesday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 16.
Wednesday
Mostly cloudy, with a high near 29.
Wednesday Night
Partly cloudy, with a low around 12.
Thursday
Mostly sunny, with a high near 20.
Thursday Night
Mostly cloudy, with a low around 14.
Friday
A chance of snow. Mostly cloudy, with a high near 28.
Friday Night
A chance of snow. Mostly cloudy, with a low around 10.
Saturday
A chance of snow. Partly sunny, with a high near 16.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Westmont IL
 41.8°N 87.97°W
Last Update:
3:11 am CST Jan 18, 2026
Forecast Valid:
4am CST Jan 18, 2026-6pm CST Jan 24, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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