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

43°F

6°C

Humidity 86%
Wind Speed NE 16 mph
Barometer 29.95 in (1014.3 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 31 Mar 7:53 pm CDT
Extended Forecast for

Westmont IL

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers after 4am. Cloudy, with a low around 36. Northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    Low: 36 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers before 1pm, then a chance of showers after 2pm. Mostly cloudy, with a high near 47. Northeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    High: 47 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7pm. Temperature rising to around 48 by 5am. East wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 44 °F⇑

    Showers

  • Thursday

    Thursday: Showers and possibly a thunderstorm. High near 74. Breezy, with a south wind 15 to 20 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 35 mph. Chance of precipitation is 90%.

    High: 74 °F

    Breezy.
    Showers
    Likely then
    Showers

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 1am. Mostly cloudy, with a low around 50. Breezy, with a west southwest wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 35 mph. Chance of precipitation is 60%.

    Low: 50 °F

    Showers
    Likely and
    Breezy

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 51. Chance of precipitation is 90%.

    Low: 51 °F

    Showers

  • Saturday

    Saturday: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 64.

    High: 64 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers before 1am. Mostly cloudy, with a low around 34.

    Low: 34 °F

    Chance
    Showers

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers after 4am. Cloudy, with a low around 36. Northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Wednesday
A chance of showers before 1pm, then a chance of showers after 2pm. Mostly cloudy, with a high near 47. Northeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7pm. Temperature rising to around 48 by 5am. East wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
Showers and possibly a thunderstorm. High near 74. Breezy, with a south wind 15 to 20 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 35 mph. Chance of precipitation is 90%.
Thursday Night
Showers likely and possibly a thunderstorm before 1am. Mostly cloudy, with a low around 50. Breezy, with a west southwest wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 35 mph. Chance of precipitation is 60%.
Friday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 70.
Friday Night
Showers and possibly a thunderstorm. Low around 51. Chance of precipitation is 90%.
Saturday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 64.
Saturday Night
A chance of showers before 1am. Mostly cloudy, with a low around 34.
Sunday
Partly sunny, with a high near 49.
Sunday Night
Mostly clear, with a low around 33.
Monday
Sunny, with a high near 57.
Monday Night
Mostly cloudy, with a low around 40.
Tuesday
Partly sunny, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Westmont IL
 41.8°N 87.97°W
Last Update:
7:21 pm CDT Mar 31, 2026
Forecast Valid:
8pm CDT Mar 31, 2026-6pm CDT Apr 7, 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