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.

A Few Clouds

74°F

23°C

Humidity 94%
Wind Speed Calm
Barometer 29.91 in (1012.3 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 4 Sep 1:52 am CDT
Extended Forecast for

Deer Park IL

  • Overnight

    Overnight: A 20 percent chance of showers and thunderstorms after 3am. Partly cloudy, with a low around 74. Southwest wind around 5 mph.

    Low: 74 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly between 10am and 11am. Mostly cloudy, then gradually becoming sunny, with a high near 93. Heat index values as high as 103. North wind 5 to 10 mph becoming south in the morning. Winds could gust as high as 15 mph.

    High: 93 °F

    Chance
    T-storms then
    Mostly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly between 1am and 4am. Increasing clouds, with a low around 72. West wind around 5 mph.

    Low: 72 °F

    Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny, with a high near 84. North northeast wind 5 to 10 mph.

    High: 84 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 66. Northeast wind 5 to 10 mph.

    Low: 66 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

  • Labor Day

    Labor Day: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 65.

    Low: 65 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms after 3am. Partly cloudy, with a low around 74. Southwest wind around 5 mph.
Friday
A 30 percent chance of showers and thunderstorms, mainly between 10am and 11am. Mostly cloudy, then gradually becoming sunny, with a high near 93. Heat index values as high as 103. North wind 5 to 10 mph becoming south in the morning. Winds could gust as high as 15 mph.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly between 1am and 4am. Increasing clouds, with a low around 72. West wind around 5 mph.
Saturday
Mostly sunny, with a high near 84. North northeast wind 5 to 10 mph.
Saturday Night
Partly cloudy, with a low around 66. Northeast wind 5 to 10 mph.
Sunday
Mostly sunny, with a high near 80.
Sunday Night
Partly cloudy, with a low around 64.
Labor Day
Mostly sunny, with a high near 81.
Monday Night
Mostly cloudy, with a low around 65.
Tuesday
Partly sunny, with a high near 84.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 71.
Wednesday
Partly sunny, with a high near 87.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 68.
Thursday
Partly sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Deer Park IL
 42.16°N 88.1°W
Last Update:
1:21 am CDT Sep 4, 2026
Forecast Valid:
1am CDT Sep 4, 2026-6pm CDT Sep 10, 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