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.

Fair

80°F

27°C

Humidity 49%
Wind Speed E 5 mph
Barometer 30.11 in (1019.3 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 28 Aug 4:52 pm CDT
Extended Forecast for

Deer Park IL

  • Tonight

    Tonight: Partly cloudy, with a low around 62. East wind around 5 mph becoming south southwest in the evening.

    Low: 62 °F

    Partly Cloudy

  • Saturday

    Saturday: Increasing clouds, with a high near 80. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 80 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: A 30 percent chance of showers after 5am. Mostly cloudy, with a low around 69. South wind around 10 mph, with gusts as high as 15 mph.

    Low: 69 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 87. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 87 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 72. South southwest wind around 10 mph.

    Low: 72 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Monday

    Monday: Partly sunny, with a high near 90.

    High: 90 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 75.

    Low: 75 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 73.

    Low: 73 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 62. East wind around 5 mph becoming south southwest in the evening.
Saturday
Increasing clouds, with a high near 80. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Saturday Night
A 30 percent chance of showers after 5am. Mostly cloudy, with a low around 69. South wind around 10 mph, with gusts as high as 15 mph.
Sunday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 87. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 72. South southwest wind around 10 mph.
Monday
Partly sunny, with a high near 90.
Monday Night
Partly cloudy, with a low around 75.
Tuesday
Mostly sunny, with a high near 90.
Tuesday Night
Mostly cloudy, with a low around 73.
Wednesday
Mostly sunny, with a high near 89.
Wednesday Night
Partly cloudy, with a low around 72.
Thursday
Mostly sunny, with a high near 86.
Thursday Night
Partly cloudy, with a low around 70.
Friday
Mostly sunny, with a high near 86.
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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 pm CDT Aug 28, 2026
Forecast Valid:
5pm CDT Aug 28, 2026-6pm CDT Sep 4, 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