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

Chicago / Wheeling, Pal-Waukee Airport (KPWK)

Lat: 42.12°NLon: 87.9°WElev: 646ft.

Mostly Cloudy

69°F

21°C

Humidity 44%
Wind Speed SW 14 G 23 mph
Barometer 29.58 in (1001.4 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 22 Mar 12:52 am CDT
Extended Forecast for

Deer Park IL

  • Overnight

    Overnight: Partly cloudy, with a low around 43. Southwest wind around 10 mph becoming north. Winds could gust as high as 15 mph.

    Low: 43 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers before 4pm. Mostly cloudy, with a temperature falling to around 39 by 5pm. Breezy, with a north northeast wind 15 to 20 mph, with gusts as high as 25 mph.

    High: 44 °F⇓

    Slight Chance
    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 28. North wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 28 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 46. North wind around 5 mph, with gusts as high as 10 mph.

    High: 46 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 31. East wind around 5 mph becoming south after midnight. Winds could gust as high as 10 mph.

    Low: 31 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 55.

    High: 55 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 56.

    High: 56 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 43. Southwest wind around 10 mph becoming north. Winds could gust as high as 15 mph.
Sunday
A 20 percent chance of showers before 4pm. Mostly cloudy, with a temperature falling to around 39 by 5pm. Breezy, with a north northeast wind 15 to 20 mph, with gusts as high as 25 mph.
Sunday Night
Partly cloudy, with a low around 28. North wind 10 to 15 mph, with gusts as high as 25 mph.
Monday
Sunny, with a high near 46. North wind around 5 mph, with gusts as high as 10 mph.
Monday Night
Partly cloudy, with a low around 31. East wind around 5 mph becoming south after midnight. Winds could gust as high as 10 mph.
Tuesday
Mostly cloudy, with a high near 55.
Tuesday Night
Mostly cloudy, with a low around 39.
Wednesday
Mostly cloudy, with a high near 56.
Wednesday Night
Mostly cloudy, with a low around 45.
Thursday
Mostly cloudy, with a high near 62.
Thursday Night
Mostly cloudy, with a low around 32.
Friday
Partly sunny, with a high near 44.
Friday Night
Partly cloudy, with a low around 29.
Saturday
Mostly sunny, with a high near 48.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Deer Park IL
 42.16°N 88.07°W
Last Update:
8:56 pm CDT Mar 21, 2026
Forecast Valid:
12am CDT Mar 22, 2026-6pm CDT Mar 28, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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