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.

Fair

68°F

20°C

Humidity 78%
Wind Speed N 7 mph
Barometer 29.93 in (1012.6 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 29 Jul 1:53 am CDT
Extended Forecast for

Westmont IL

  • Overnight

    Overnight: Mostly clear, with a low around 63. North wind around 5 mph, with gusts as high as 10 mph.

    Low: 63 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 82. Northeast wind 5 to 10 mph.

    High: 82 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 65. Northeast wind around 5 mph becoming calm in the evening.

    Low: 65 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 88. Calm wind becoming west around 5 mph in the afternoon.

    High: 88 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 68. South wind around 5 mph.

    Low: 68 °F

    Mostly Cloudy

  • Friday

    Friday: Showers likely, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 76. Chance of precipitation is 60%.

    High: 76 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Friday Night

    Friday Night: Rain and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 65. Chance of precipitation is 80%.

    Low: 65 °F

    Heavy Rain

  • Saturday

    Saturday: Showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 75.

    High: 75 °F

    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 63. North wind around 5 mph, with gusts as high as 10 mph.
Wednesday
Sunny, with a high near 82. Northeast wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 65. Northeast wind around 5 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 88. Calm wind becoming west around 5 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 68. South wind around 5 mph.
Friday
Showers likely, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 76. Chance of precipitation is 60%.
Friday Night
Rain and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 65. Chance of precipitation is 80%.
Saturday
Showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 75.
Saturday Night
Partly cloudy, with a low around 64.
Sunday
Mostly sunny, with a high near 78.
Sunday Night
Mostly clear, with a low around 64.
Monday
Sunny, with a high near 81.
Monday Night
Mostly clear, with a low around 66.
Tuesday
Mostly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Westmont IL
 41.8°N 87.97°W
Last Update:
1:20 am CDT Jul 29, 2026
Forecast Valid:
1am CDT Jul 29, 2026-6pm CDT Aug 4, 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