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

59°F

15°C

Humidity 90%
Wind Speed SW 13 mph
Barometer 29.63 in (1002.8 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 18 Apr 3:53 am CDT
Extended Forecast for

Westmont IL

  • Overnight

    Overnight: A 30 percent chance of showers, mainly after 5am. Cloudy, with a low around 43. West northwest wind around 15 mph, with gusts as high as 30 mph.

    Low: 43 °F

    Chance
    Showers

  • Saturday

    Saturday: A 30 percent chance of showers before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 50. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 50 °F

    Breezy.
    Chance
    Showers then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Patchy frost after 3am. Otherwise, mostly clear, with a low around 36. West northwest wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 36 °F

    Mostly Clear
    then Patchy
    Frost

  • Sunday

    Sunday: A 30 percent chance of showers after 1pm. Areas of frost before 8am. Otherwise, mostly sunny, with a high near 51. West southwest wind 5 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 30 mph.

    High: 51 °F

    Areas Frost
    then Chance
    Showers

  • Sunday Night

    Sunday Night: Widespread frost after 5am. Otherwise, mostly clear, with a low around 33. North northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 33 °F

    Partly Cloudy
    then Frost

  • Monday

    Monday: Widespread frost, mainly before 7am. Otherwise, sunny, with a high near 55.

    High: 55 °F

    Frost then
    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 30 percent chance of showers, mainly after 5am. Cloudy, with a low around 43. West northwest wind around 15 mph, with gusts as high as 30 mph.
Saturday
A 30 percent chance of showers before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 50. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.
Saturday Night
Patchy frost after 3am. Otherwise, mostly clear, with a low around 36. West northwest wind 5 to 15 mph, with gusts as high as 25 mph.
Sunday
A 30 percent chance of showers after 1pm. Areas of frost before 8am. Otherwise, mostly sunny, with a high near 51. West southwest wind 5 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 30 mph.
Sunday Night
Widespread frost after 5am. Otherwise, mostly clear, with a low around 33. North northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Monday
Widespread frost, mainly before 7am. Otherwise, sunny, with a high near 55.
Monday Night
Mostly cloudy, with a low around 46.
Tuesday
Mostly sunny, with a high near 73.
Tuesday Night
Partly cloudy, with a low around 50.
Wednesday
Sunny, with a high near 73.
Wednesday Night
Mostly clear, with a low around 56.
Thursday
Mostly sunny, with a high near 82.
Thursday Night
Showers likely. Mostly cloudy, with a low around 61.
Friday
A chance of showers. Mostly cloudy, with a high near 74.
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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 18, 2026
Forecast Valid:
4am CDT Apr 18, 2026-6pm CDT Apr 24, 2026
 
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Additional Resources

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Chance of Precipitation