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

80°F

27°C

Humidity 42%
Wind Speed W 6 mph
Barometer 30.00 in (1014.9 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 13 Jul 6:53 pm CDT
Extended Forecast for

Westmont IL

  • Tonight

    Tonight: Partly cloudy, with a low around 66. West northwest wind around 5 mph becoming south southwest in the evening.

    Low: 66 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 88. Calm wind becoming west southwest around 5 mph in the morning.

    High: 88 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 69. South southwest wind around 5 mph becoming calm in the evening.

    Low: 69 °F

    Mostly Clear

  • Tuesday

    Tuesday: A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 90. South wind 5 to 10 mph. Chance of precipitation is 20%.

    High: 90 °F

    Sunny then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A slight chance of thunderstorms before 1am, then a slight chance of showers and thunderstorms between 1am and 4am, then a slight chance of showers after 4am. Partly cloudy, with a low around 72. South wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 20%.

    Low: 72 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 7am. Partly sunny, with a high near 89. Chance of precipitation is 50%.

    High: 89 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72.

    Low: 72 °F

    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 84.

    High: 84 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 66.

    Low: 66 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Partly cloudy, with a low around 66. West northwest wind around 5 mph becoming south southwest in the evening.
Monday
Sunny, with a high near 88. Calm wind becoming west southwest around 5 mph in the morning.
Monday Night
Mostly clear, with a low around 69. South southwest wind around 5 mph becoming calm in the evening.
Tuesday
A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 90. South wind 5 to 10 mph. Chance of precipitation is 20%.
Tuesday Night
A slight chance of thunderstorms before 1am, then a slight chance of showers and thunderstorms between 1am and 4am, then a slight chance of showers after 4am. Partly cloudy, with a low around 72. South wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 20%.
Wednesday
A chance of showers, with thunderstorms also possible after 7am. Partly sunny, with a high near 89. Chance of precipitation is 50%.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72.
Thursday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 84.
Thursday Night
A chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 66.
Friday
Partly sunny, with a high near 80.
Friday Night
Partly cloudy, with a low around 65.
Saturday
Partly sunny, with a high near 84.
Saturday Night
Mostly cloudy, with a low around 68.
Sunday
A chance of showers. Mostly sunny, with a high near 85.
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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:
4:12 pm CDT Jul 13, 2025
Forecast Valid:
7pm CDT Jul 13, 2025-6pm CDT Jul 20, 2025
 
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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