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 and Breezy

71°F

22°C

Humidity 73%
Wind Speed SW 21 G 30 mph
Barometer 29.75 in (1006.6 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 14 Apr 1:53 am CDT
Extended Forecast for

Westmont IL

  • Overnight

    Overnight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Cloudy, with a low around 64. Breezy, with a south southwest wind 15 to 20 mph becoming west. Winds could gust as high as 30 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 64 °F

    Showers
    Likely and
    Breezy

  • Tuesday

    Tuesday: Showers and thunderstorms likely before 9am, then a slight chance of showers and thunderstorms after 3pm. Mostly cloudy, with a high near 80. South southwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Showers
    Likely then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 64. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 64 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 75. South southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.

    High: 75 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Low around 60. South southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

    Low: 60 °F

    Showers

  • Thursday

    Thursday: A 50 percent chance of showers. Mostly cloudy, with a high near 72.

    High: 72 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 75.

    High: 75 °F

    Partly Sunny

  • Friday Night

    Friday Night: A chance of showers, then showers and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 58.

    Low: 58 °F

    Showers

Detailed Forecast

Overnight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Cloudy, with a low around 64. Breezy, with a south southwest wind 15 to 20 mph becoming west. Winds could gust as high as 30 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Showers and thunderstorms likely before 9am, then a slight chance of showers and thunderstorms after 3pm. Mostly cloudy, with a high near 80. South southwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 64. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday
Showers and possibly a thunderstorm. High near 75. South southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.
Wednesday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Low around 60. South southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Thursday
A 50 percent chance of showers. Mostly cloudy, with a high near 72.
Thursday Night
Partly cloudy, with a low around 54.
Friday
Partly sunny, with a high near 75.
Friday Night
A chance of showers, then showers and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 58.
Saturday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers. Mostly cloudy, with a high near 68. Breezy.
Saturday Night
Partly cloudy, with a low around 38.
Sunday
Mostly sunny, with a high near 54.
Sunday Night
Mostly clear, with a low around 36.
Monday
Sunny, with a high near 60.
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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:
1:21 am CDT Apr 14, 2026
Forecast Valid:
2am CDT Apr 14, 2026-6pm CDT Apr 20, 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