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

61°F

16°C

Humidity 90%
Wind Speed S 12 G 21 mph
Barometer 29.74 in (1006.7 mb)
Dewpoint 58°F (14°C)
Visibility 9.00 mi
Last update 16 Apr 2:53 am CDT
Extended Forecast for

Westmont IL

  • Overnight

    Overnight: A 30 percent chance of showers and thunderstorms. Cloudy, with a low around 61. South southwest wind around 10 mph, with gusts as high as 15 mph.

    Low: 61 °F

    Chance
    Showers

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms, mainly before 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 71. Southwest wind 10 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 71 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 52. North wind around 5 mph becoming southeast after midnight.

    Low: 52 °F

    Patchy Fog

  • Friday

    Friday: Patchy fog before 8am. Otherwise, partly sunny, with a high near 81. Breezy, with a south southeast wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 81 °F

    Patchy Fog
    then Partly
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 48. South wind around 15 mph becoming west southwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 90%.

    Low: 48 °F

    T-storms then
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 56.

    High: 56 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 52.

    High: 52 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms. Cloudy, with a low around 61. South southwest wind around 10 mph, with gusts as high as 15 mph.
Thursday
A 40 percent chance of showers and thunderstorms, mainly before 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 71. Southwest wind 10 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 52. North wind around 5 mph becoming southeast after midnight.
Friday
Patchy fog before 8am. Otherwise, partly sunny, with a high near 81. Breezy, with a south southeast wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Friday Night
Showers and possibly a thunderstorm. Low around 48. South wind around 15 mph becoming west southwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 90%.
Saturday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 56.
Saturday Night
Mostly clear, with a low around 36.
Sunday
Mostly sunny, with a high near 52.
Sunday Night
Partly cloudy, with a low around 35.
Monday
Areas of frost before 8am. Otherwise, sunny, with a high near 59.
Monday Night
Partly cloudy, with a low around 48.
Tuesday
Mostly sunny, with a high near 73.
Tuesday Night
Mostly clear, with a low around 52.
Wednesday
Mostly sunny, with a high near 69.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Westmont IL
 41.8°N 87.97°W
Last Update:
3:06 am CDT Apr 16, 2026
Forecast Valid:
3am CDT Apr 16, 2026-6pm CDT Apr 22, 2026
 
Forecast Discussion
 
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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