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.

A Few Clouds

38°F

3°C

Humidity 73%
Wind Speed SE 3 mph
Barometer 30.35 in (1028.3 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 20 Apr 6:53 am CDT
Extended Forecast for

Westmont IL

Freeze Warning April 20, 07:28am until April 20, 09:00am
Click here for hazard details and duration
...
  •  
    Freeze Warning April 20, 07:28am until April 20, 09:00am

    NOW until 9:00am Mon

    Freeze Warning

  • Today

    High: 55 °F

    Frost then
    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 46. South wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 46 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 76. Southwest wind around 15 mph, with gusts as high as 30 mph.

    High: 76 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 52. West southwest wind 5 to 10 mph becoming northwest after midnight. Winds could gust as high as 15 mph.

    Low: 52 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: Sunny, with a high near 72. North northeast wind around 5 mph becoming east in the afternoon. Winds could gust as high as 10 mph.

    High: 72 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Thursday Night

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

    Low: 62 °F

    Showers
    Likely

Detailed Forecast

Today
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 55. Calm wind becoming south southwest around 5 mph in the morning. Winds could gust as high as 10 mph.
Tonight
Partly cloudy, with a low around 46. South wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 76. Southwest wind around 15 mph, with gusts as high as 30 mph.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 52. West southwest wind 5 to 10 mph becoming northwest after midnight. Winds could gust as high as 15 mph.
Wednesday
Sunny, with a high near 72. North northeast wind around 5 mph becoming east in the afternoon. Winds could gust as high as 10 mph.
Wednesday Night
Partly cloudy, with a low around 56.
Thursday
Mostly sunny, with a high near 80.
Thursday Night
A chance of showers, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 62.
Friday
Showers likely. Mostly cloudy, with a high near 73.
Friday Night
A chance of showers before 1am. Mostly cloudy, with a low around 49.
Saturday
Mostly sunny, with a high near 66.
Saturday Night
Partly cloudy, with a low around 46.
Sunday
Partly sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Westmont IL
 41.8°N 87.97°W
Last Update:
5:41 am CDT Apr 20, 2026
Forecast Valid:
7am CDT Apr 20, 2026-6pm CDT Apr 26, 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