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 80%
Wind Speed N 8 mph
Barometer 29.92 in (1013.7 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 26 Dec 7:53 pm CST
Extended Forecast for

Westmont IL

  • Tonight

    Tonight: Patchy fog after 11pm. Otherwise, cloudy, with a low around 38. North northwest wind around 5 mph becoming calm in the evening.

    Low: 38 °F

    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 9am. Otherwise, cloudy, with a high near 46. Southeast wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 46 °F

    Patchy Fog
    then Cloudy

  • Saturday Night

    Saturday Night: Periods of showers or drizzle, mainly after midnight. Patchy fog after 9pm. Temperature rising to around 50 by 5am. Southeast wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 45 °F⇑

    Showers and
    Patchy Fog

  • Sunday

    Sunday: Periods of showers. Areas of fog before 9am. High near 57. South wind 10 to 15 mph becoming west in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 90%.

    High: 57 °F

    Showers and
    Areas Fog

  • Sunday Night

    Sunday Night: Rain likely before 9pm, then rain and snow likely between 9pm and 3am, then a chance of snow after 3am. Cloudy, with a low around 19. Windy, with a west wind 15 to 20 mph increasing to 25 to 30 mph after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 70%.

    Low: 19 °F

    Rain/Snow
    Likely and
    Breezy then
    Chance
    Rain/Snow and
    Windy

  • Monday

    Monday: A 40 percent chance of snow before noon. Mostly cloudy, with a high near 24. Blustery.

    High: 24 °F

    Blustery.
    Chance Snow
    then Mostly
    Cloudy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 15. Blustery.

    Low: 15 °F

    Mostly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 28.

    High: 28 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 22.

    Low: 22 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Patchy fog after 11pm. Otherwise, cloudy, with a low around 38. North northwest wind around 5 mph becoming calm in the evening.
Saturday
Patchy fog before 9am. Otherwise, cloudy, with a high near 46. Southeast wind 5 to 10 mph, with gusts as high as 15 mph.
Saturday Night
Periods of showers or drizzle, mainly after midnight. Patchy fog after 9pm. Temperature rising to around 50 by 5am. Southeast wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Periods of showers. Areas of fog before 9am. High near 57. South wind 10 to 15 mph becoming west in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 90%.
Sunday Night
Rain likely before 9pm, then rain and snow likely between 9pm and 3am, then a chance of snow after 3am. Cloudy, with a low around 19. Windy, with a west wind 15 to 20 mph increasing to 25 to 30 mph after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 70%.
Monday
A 40 percent chance of snow before noon. Mostly cloudy, with a high near 24. Blustery.
Monday Night
Partly cloudy, with a low around 15. Blustery.
Tuesday
Partly sunny, with a high near 28.
Tuesday Night
Mostly cloudy, with a low around 22.
Wednesday
Mostly cloudy, with a high near 29.
Wednesday Night
Mostly cloudy, with a low around 9.
New Year's Day
Sunny, with a high near 16.
Thursday Night
Mostly clear, with a low around 6.
Friday
Mostly sunny, with a high near 20.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Westmont IL
 41.8°N 87.97°W
Last Update:
8:36 pm CST Dec 26, 2025
Forecast Valid:
8pm CST Dec 26, 2025-6pm CST Jan 2, 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