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

Monsoons Return to the Southwest U.S.; Potential Atlantic Tropical System Interaction

In Arizona and New Mexico, heavy to excessive rainfall from monsoon thunderstorms may bring isolated flash and urban flooding Thursday into Sunday. The close proximity of Tropical Storm Humberto and a tropical wave (AL94) could lead to interaction between them, and details of their long-range track and intensity forecasts, and any potential impacts, are more uncertain than usual. Read More >

Hazardous Weather Conditions

Current conditions at

Chicago / Wheeling, Pal-Waukee Airport (KPWK)

Lat: 42.12°NLon: 87.9°WElev: 646ft.

Fair

60°F

16°C

Humidity 90%
Wind Speed N 9 mph
Barometer 29.96 in (1014.2 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 25 Sep 3:52 am CDT
Extended Forecast for

Northbrook IL

  • Overnight

    Overnight: A 20 percent chance of showers. Mostly cloudy, with a low around 58. North northwest wind around 10 mph.

    Low: 58 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: A 10 percent chance of showers before 7am. Mostly sunny, with a high near 72. North northwest wind around 10 mph.

    High: 72 °F

    Slight Chance
    Showers then
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 56. Northeast wind around 5 mph becoming west southwest in the evening.

    Low: 56 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 80. West southwest wind around 5 mph.

    High: 80 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 60. Southeast wind around 5 mph becoming calm in the evening.

    Low: 60 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

Detailed Forecast

Overnight
A 20 percent chance of showers. Mostly cloudy, with a low around 58. North northwest wind around 10 mph.
Thursday
A 10 percent chance of showers before 7am. Mostly sunny, with a high near 72. North northwest wind around 10 mph.
Thursday Night
Mostly clear, with a low around 56. Northeast wind around 5 mph becoming west southwest in the evening.
Friday
Sunny, with a high near 80. West southwest wind around 5 mph.
Friday Night
Mostly clear, with a low around 60. Southeast wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 82.
Saturday Night
Mostly clear, with a low around 60.
Sunday
Sunny, with a high near 80.
Sunday Night
Mostly clear, with a low around 61.
Monday
Sunny, with a high near 77.
Monday Night
Mostly clear, with a low around 60.
Tuesday
Mostly sunny, with a high near 75.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
Mostly sunny, with a high near 73.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Northbrook IL
 42.13°N 87.83°W
Last Update:
4:11 am CDT Sep 25, 2025
Forecast Valid:
4am CDT Sep 25, 2025-6pm CDT Oct 1, 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