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

Hazardous Weather Conditions

Current conditions at

Chicago / Wheeling, Pal-Waukee Airport (KPWK)

Lat: 42.12°NLon: 87.9°WElev: 646ft.

Mostly Cloudy

44°F

7°C

Humidity 96%
Wind Speed Calm
Barometer 30.38 in (1028.9 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 20 Oct 2:52 am CDT
Extended Forecast for

Deer Park IL

Dense Fog Advisory until October 20, 09:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory until October 20, 09:00am

    NOW until 9:00am Tue

    Dense Fog Advisory

  • Overnight

    Low: 43 °F

    Patchy Dense
    Fog

  • Tuesday

    Tuesday: Patchy dense fog before 8am. Otherwise, sunny, with a high near 67. Light and variable wind becoming east 5 to 10 mph in the afternoon.

    High: 67 °F

    Patchy Dense
    Fog then
    Sunny

  • Tuesday Night

    Tuesday Night: Patchy dense fog after 4am. Otherwise, mostly clear, with a low around 43. East wind around 5 mph becoming calm in the evening.

    Low: 43 °F

    Mostly Clear
    then Patchy
    Dense Fog

  • Wednesday

    Wednesday: Patchy dense fog before 8am. Otherwise, sunny, with a high near 71. Calm wind becoming southwest around 5 mph.

    High: 71 °F

    Patchy Dense
    Fog then
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 46. Calm wind.

    Low: 46 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

Detailed Forecast

Overnight
Patchy dense fog after 4am. Otherwise, mostly clear, with a low around 43. Calm wind.
Tuesday
Patchy dense fog before 8am. Otherwise, sunny, with a high near 67. Light and variable wind becoming east 5 to 10 mph in the afternoon.
Tuesday Night
Patchy dense fog after 4am. Otherwise, mostly clear, with a low around 43. East wind around 5 mph becoming calm in the evening.
Wednesday
Patchy dense fog before 8am. Otherwise, sunny, with a high near 71. Calm wind becoming southwest around 5 mph.
Wednesday Night
Mostly clear, with a low around 46. Calm wind.
Thursday
Sunny, with a high near 70.
Thursday Night
Mostly clear, with a low around 48.
Friday
Sunny, with a high near 67.
Friday Night
Partly cloudy, with a low around 48.
Saturday
Mostly sunny, with a high near 67.
Saturday Night
Mostly cloudy, with a low around 51.
Sunday
Partly sunny, with a high near 69.
Sunday Night
Mostly cloudy, with a low around 49.
Monday
Mostly sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Deer Park IL
 42.16°N 88.1°W
Last Update:
3:46 am CDT Oct 20, 2026
Forecast Valid:
3am CDT Oct 20, 2026-6pm CDT Oct 26, 2026
 
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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