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

42°F

6°C

Humidity 60%
Wind Speed E 6 mph
Barometer 30.24 in (1024.6 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 19 Apr 10:53 pm CDT
Extended Forecast for

Westmont IL

Freeze Warning April 20, 12:00am until April 20, 09:00am
Click here for hazard details and duration
Freeze Warning

  • Tonight

    Tonight: Widespread frost, mainly after 3am. Otherwise, mostly clear, with a low around 33. North northeast wind around 5 mph becoming calm after midnight.

    Low: 33 °F

    Frost

  • Monday

    Monday: Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 54. Calm wind becoming south southwest around 5 mph in the afternoon. Winds could gust as high as 10 mph.

    High: 54 °F

    Frost then
    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 45. South wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 45 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 74. Southwest wind around 15 mph, with gusts as high as 25 mph.

    High: 74 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 52. West southwest wind 5 to 10 mph becoming north northwest after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 20%.

    Low: 52 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Wednesday

    Wednesday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 81. Breezy.

    High: 81 °F

    Sunny then
    Mostly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers likely after 1am. Mostly cloudy, with a low around 62. Breezy.

    Low: 62 °F

    Chance
    T-storms and
    Breezy then
    Showers
    Likely

Detailed Forecast

Tonight
Widespread frost, mainly after 3am. Otherwise, mostly clear, with a low around 33. North northeast wind around 5 mph becoming calm after midnight.
Monday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 54. Calm wind becoming south southwest around 5 mph in the afternoon. Winds could gust as high as 10 mph.
Monday Night
Mostly cloudy, with a low around 45. South wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 74. Southwest wind around 15 mph, with gusts as high as 25 mph.
Tuesday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 52. West southwest wind 5 to 10 mph becoming north northwest after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 20%.
Wednesday
Sunny, with a high near 75.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
Mostly sunny, with a high near 81. Breezy.
Thursday Night
A chance of showers and thunderstorms, then showers likely after 1am. Mostly cloudy, with a low around 62. Breezy.
Friday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 73.
Friday Night
A chance of showers. Mostly cloudy, with a low around 49.
Saturday
Partly sunny, with a high near 65.
Saturday Night
Mostly cloudy, with a low around 46.
Sunday
Partly sunny, with a high near 63.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Westmont IL
 41.8°N 87.97°W
Last Update:
9:21 pm CDT Apr 19, 2026
Forecast Valid:
11pm CDT Apr 19, 2026-6pm CDT Apr 26, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation