National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Chicago, Chicago Midway Airport (KMDW)

Lat: 41.78°NLon: 87.76°WElev: 617ft.

Mostly Cloudy

31°F

-1°C

Humidity 64%
Wind Speed S 14 G 25 mph
Barometer 29.99 in (1016.8 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 4 Jan 7:53 pm CST
Extended Forecast for

Westmont IL

  • Tonight

    Tonight: Cloudy during the early evening, then gradual clearing, with a low around 31. South wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 31 °F

    Gradual
    Clearing

  • Monday

    Monday: Mostly cloudy, with a high near 40. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 40 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Patchy fog. Otherwise, mostly cloudy, with a low around 35. South wind around 5 mph.

    Low: 35 °F

    Patchy Fog

  • Tuesday

    Tuesday: A chance of drizzle before noon. Patchy fog before noon. Otherwise, mostly cloudy, with a high near 43. South wind 5 to 10 mph becoming west in the afternoon.

    High: 43 °F

    Chance
    Drizzle and
    Patchy Fog
    then Mostly
    Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 32. West wind around 5 mph, with gusts as high as 10 mph.

    Low: 32 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of rain after noon. Partly sunny, with a high near 50.

    High: 50 °F

    Partly Sunny
    then Chance
    Rain

  • Thursday Night

    Thursday Night: A chance of rain. Mostly cloudy, with a low around 36.

    Low: 36 °F

    Chance Rain

Detailed Forecast

Tonight
Cloudy during the early evening, then gradual clearing, with a low around 31. South wind 10 to 15 mph, with gusts as high as 25 mph.
Monday
Mostly cloudy, with a high near 40. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 35. South wind around 5 mph.
Tuesday
A chance of drizzle before noon. Patchy fog before noon. Otherwise, mostly cloudy, with a high near 43. South wind 5 to 10 mph becoming west in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 32. West wind around 5 mph, with gusts as high as 10 mph.
Wednesday
Mostly sunny, with a high near 48.
Wednesday Night
Partly cloudy, with a low around 38.
Thursday
A chance of rain after noon. Partly sunny, with a high near 50.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 36.
Friday
A chance of rain. Mostly cloudy, with a high near 44.
Friday Night
A chance of rain. Mostly cloudy, with a low around 30.
Saturday
A chance of rain and snow. Mostly cloudy, with a high near 35.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 20.
Sunday
Partly sunny, with a high near 31.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Westmont IL
 41.8°N 87.97°W
Last Update:
8:31 pm CST Jan 4, 2026
Forecast Valid:
8pm CST Jan 4, 2026-6pm CST Jan 11, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation