National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Chicago, Chicago Midway Airport (KMDW)

Lat: 41.78°NLon: 87.76°WElev: 617ft.

Partly Cloudy

63°F

17°C

Humidity 73%
Wind Speed SW 5 mph
Barometer 29.91 in (1012.1 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 12 Oct 1:53 am CDT
Extended Forecast for

Westmont IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 62. South southwest wind 5 to 10 mph.

    Low: 62 °F

    Mostly Cloudy

  • Columbus Day

    Columbus Day: Mostly sunny, with a high near 86. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 86 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 71. South southwest wind around 15 mph, with gusts as high as 25 mph.

    Low: 71 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 85. West wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 85 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 1am, then showers and possibly a thunderstorm between 1am and 4am, then showers after 4am. Low around 64. Northwest wind around 5 mph becoming north northeast in the evening. Chance of precipitation is 80%.

    Low: 64 °F

    Chance
    Showers then
    Showers

  • Wednesday

    Wednesday: A 50 percent chance of showers. Mostly cloudy, with a high near 71.

    High: 71 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers after 1am. Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: Showers and possibly a thunderstorm. Mostly cloudy, with a high near 68.

    High: 68 °F

    Showers

  • Thursday Night

    Thursday Night: A chance of showers before 1am. Mostly cloudy, with a low around 49.

    Low: 49 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly cloudy, with a low around 62. South southwest wind 5 to 10 mph.
Columbus Day
Mostly sunny, with a high near 86. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
Mostly clear, with a low around 71. South southwest wind around 15 mph, with gusts as high as 25 mph.
Tuesday
Sunny, with a high near 85. West wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
A chance of showers and thunderstorms before 1am, then showers and possibly a thunderstorm between 1am and 4am, then showers after 4am. Low around 64. Northwest wind around 5 mph becoming north northeast in the evening. Chance of precipitation is 80%.
Wednesday
A 50 percent chance of showers. Mostly cloudy, with a high near 71.
Wednesday Night
A 40 percent chance of showers after 1am. Mostly cloudy, with a low around 56.
Thursday
Showers and possibly a thunderstorm. Mostly cloudy, with a high near 68.
Thursday Night
A chance of showers before 1am. Mostly cloudy, with a low around 49.
Friday
Partly sunny, with a high near 58. Breezy.
Friday Night
Partly cloudy, with a low around 39.
Saturday
Sunny, with a high near 56.
Saturday Night
Mostly clear, with a low around 40.
Sunday
Sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Westmont IL
 41.8°N 87.97°W
Last Update:
1:21 am CDT Oct 12, 2026
Forecast Valid:
2am CDT Oct 12, 2026-6pm CDT Oct 18, 2026
 
Forecast Discussion
 
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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