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

25°F

-4°C

Humidity 60%
Wind Speed SW 14 mph
Barometer 30.16 in (1023.0 mb)
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Wind Chill13°F (-11°C)
Last update 17 Mar 11:53 pm CDT
Extended Forecast for

Westmont IL

  • Overnight

    Overnight: Snow, mainly after 1am. Steady temperature around 23. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of less than one inch possible.

    Low: 23 °F

    Snow

  • Wednesday

    Wednesday: A 30 percent chance of snow before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 42. South wind around 10 mph becoming west southwest in the afternoon. Winds could gust as high as 20 mph.

    High: 42 °F

    Chance Snow
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers after 1am. Increasing clouds, with a low around 35. South southwest wind around 5 mph, with gusts as high as 10 mph.

    Low: 35 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: A 30 percent chance of showers before 1pm. Partly sunny, with a high near 51. South southwest wind around 5 mph becoming north in the afternoon. Winds could gust as high as 10 mph.

    High: 51 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 36. North northeast wind around 5 mph becoming south after midnight. Winds could gust as high as 10 mph.

    Low: 36 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 57.

    High: 57 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

Detailed Forecast

Overnight
Snow, mainly after 1am. Steady temperature around 23. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of less than one inch possible.
Wednesday
A 30 percent chance of snow before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 42. South wind around 10 mph becoming west southwest in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
A 30 percent chance of showers after 1am. Increasing clouds, with a low around 35. South southwest wind around 5 mph, with gusts as high as 10 mph.
Thursday
A 30 percent chance of showers before 1pm. Partly sunny, with a high near 51. South southwest wind around 5 mph becoming north in the afternoon. Winds could gust as high as 10 mph.
Thursday Night
Mostly cloudy, with a low around 36. North northeast wind around 5 mph becoming south after midnight. Winds could gust as high as 10 mph.
Friday
Mostly cloudy, with a high near 57.
Friday Night
Mostly cloudy, with a low around 41.
Saturday
Mostly sunny, with a high near 68.
Saturday Night
Partly cloudy, with a low around 47.
Sunday
Mostly cloudy, with a high near 62.
Sunday Night
Partly cloudy, with a low around 31.
Monday
Partly sunny, with a high near 42.
Monday Night
Mostly cloudy, with a low around 30.
Tuesday
Partly sunny, with a high near 50.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Westmont IL
 41.8°N 87.97°W
Last Update:
8:51 pm CDT Mar 17, 2026
Forecast Valid:
12am CDT Mar 18, 2026-6pm CDT Mar 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