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

7°F

-14°C

Humidity 50%
Wind Speed W 16 G 28 mph
Barometer 30.27 in (1027.5 mb)
Dewpoint -8°F (-22°C)
Visibility 10.00 mi
Wind Chill-11°F (-24°C)
Last update 19 Jan 3:53 pm CST
Extended Forecast for

Westmont IL

  • Tonight

    Tonight: Cloudy during the early evening, then gradual clearing, with a low around 1. Wind chill values as low as -13. West wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 1 °F

    Gradual
    Clearing

  • Tuesday

    Tuesday: Sunny, with a high near 22. Wind chill values as low as -12. West southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 22 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Snow likely, mainly after midnight. Cloudy, with a temperature rising to around 28 by 4am. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.

    Low: 19 °F⇑

    Slight Chance
    Snow then
    Snow Likely

  • Wednesday

    Wednesday: A 20 percent chance of snow before noon. Partly sunny, with a high near 30. West wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 30 °F

    Slight Chance
    Snow then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 50 percent chance of snow before midnight. Mostly cloudy, with a low around 13. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 13 °F

    Chance Snow
    then Mostly
    Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 20.

    High: 20 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around -6.

    Low: -6 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny and cold, with a high near 1.

    High: 1 °F

    Cold

  • Friday Night

    Friday Night: Mostly cloudy, with a low around -9.

    Low: -9 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Cloudy during the early evening, then gradual clearing, with a low around 1. Wind chill values as low as -13. West wind 5 to 15 mph, with gusts as high as 25 mph.
Tuesday
Sunny, with a high near 22. Wind chill values as low as -12. West southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Snow likely, mainly after midnight. Cloudy, with a temperature rising to around 28 by 4am. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.
Wednesday
A 20 percent chance of snow before noon. Partly sunny, with a high near 30. West wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
A 50 percent chance of snow before midnight. Mostly cloudy, with a low around 13. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday
Mostly sunny, with a high near 20.
Thursday Night
Mostly cloudy, with a low around -6.
Friday
Partly sunny and cold, with a high near 1.
Friday Night
Mostly cloudy, with a low around -9.
Saturday
Partly sunny and cold, with a high near 6.
Saturday Night
Mostly cloudy, with a low around -4.
Sunday
Mostly sunny, with a high near 12.
Sunday Night
Partly cloudy, with a low around 3.
Monday
Mostly sunny, with a high near 20.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Westmont IL
 41.8°N 87.97°W
Last Update:
3:11 pm CST Jan 19, 2026
Forecast Valid:
4pm CST Jan 19, 2026-6pm CST Jan 26, 2026
 
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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