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

51°F

11°C

Humidity 56%
Wind Speed NE 13 mph
Barometer 30.28 in (1025.3 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 21 May 3:53 am CDT
Extended Forecast for

Westmont IL

  • Today

    Today: Mostly sunny, with a high near 63. East northeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 63 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 49. Northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 49 °F

    Mostly Cloudy

  • Friday

    Friday: A 30 percent chance of showers after 1pm. Partly sunny, with a high near 67. East northeast wind around 15 mph, with gusts as high as 25 mph.

    High: 67 °F

    Partly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: Showers likely. Mostly cloudy, with a low around 54. East northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

    Low: 54 °F

    Showers
    Likely

  • Saturday

    Saturday: A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 72. Northwest wind around 10 mph, with gusts as high as 15 mph.

    High: 72 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 56.

    Low: 56 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 78. Chance of precipitation is 30%.

    High: 78 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

  • Memorial Day

    Memorial Day: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 63. East northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Tonight
Mostly cloudy, with a low around 49. Northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Friday
A 30 percent chance of showers after 1pm. Partly sunny, with a high near 67. East northeast wind around 15 mph, with gusts as high as 25 mph.
Friday Night
Showers likely. Mostly cloudy, with a low around 54. East northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Saturday
A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 72. Northwest wind around 10 mph, with gusts as high as 15 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 56.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 78. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 57.
Memorial Day
Mostly sunny, with a high near 80.
Monday Night
Partly cloudy, with a low around 59.
Tuesday
Partly sunny, with a high near 83.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 62.
Wednesday
Partly sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Westmont IL
 41.8°N 87.97°W
Last Update:
4:11 am CDT May 21, 2026
Forecast Valid:
4am CDT May 21, 2026-6pm CDT May 27, 2026
 
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Additional Resources

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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