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

73°F

23°C

Humidity 87%
Wind Speed NA
Barometer 30.09 in (1018.5 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 18 Aug 12:52 am CDT
Extended Forecast for

Northbrook IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 70. East southeast wind 5 to 15 mph.

    Low: 70 °F

    Mostly Cloudy

  • Monday

    Monday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 86. Southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

    High: 86 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: Showers and thunderstorms likely, mainly after 1am. Mostly cloudy, with a low around 72. South southwest wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 72 °F

    T-storms
    Likely

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 86. Heat index values as high as 95. Southwest wind 5 to 10 mph becoming north in the afternoon.

    High: 86 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 68. North wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 68 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 76.

    High: 76 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 65.

    Low: 65 °F

    Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 70. East southeast wind 5 to 15 mph.
Monday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 86. Southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Monday Night
Showers and thunderstorms likely, mainly after 1am. Mostly cloudy, with a low around 72. South southwest wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 86. Heat index values as high as 95. Southwest wind 5 to 10 mph becoming north in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 68. North wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday
Partly sunny, with a high near 76.
Wednesday Night
Partly cloudy, with a low around 66.
Thursday
Sunny, with a high near 77.
Thursday Night
Clear, with a low around 65.
Friday
Sunny, with a high near 84.
Friday Night
Partly cloudy, with a low around 67.
Saturday
Sunny, with a high near 82.
Saturday Night
Mostly clear, with a low around 61.
Sunday
Sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Northbrook IL
 42.12°N 87.8°W
Last Update:
12:56 am CDT Aug 18, 2025
Forecast Valid:
1am CDT Aug 18, 2025-6pm CDT Aug 24, 2025
 
Forecast Discussion
 
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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