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

Risks of Severe Thunderstorms and Excessive Rainfall; Fire Weather Concerns and Record Warmth

Severe thunderstorms and flash flooding risks increase across the center of the nation today. Meanwhile, ongoing thunderstorms and flash flooding will linger along the Gulf Coast states through the evening. The Great Basin and Intermountain West, warm temperatures and dry fuels with dry lightning may enhance fire weather potential. In addition, across interior Alaska, Red Flag Warning are posted. Read More >

Hazardous Weather Conditions

Current conditions at

Chicago / Wheeling, Pal-Waukee Airport (KPWK)

Lat: 42.12°NLon: 87.9°WElev: 646ft.

Mostly Cloudy

74°F

23°C

Humidity 45%
Wind Speed NW 12 G 20 mph
Barometer 29.95 in (1013.8 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 20 Jun 2:52 pm CDT
Extended Forecast for

Northbrook IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 77. Northwest wind around 10 mph, with gusts as high as 20 mph.

    High: 77 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 57. Northeast wind around 5 mph becoming calm after midnight. Winds could gust as high as 10 mph.

    Low: 57 °F

    Partly Cloudy

  • Sunday

    Sunday: Showers, mainly after noon. High near 70. East wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 70 °F

    Mostly Cloudy
    then Showers

  • Sunday Night

    Sunday Night: Showers, mainly before 1am. Low around 57. East northeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.

    Low: 57 °F

    Showers then
    Showers
    Likely

  • Monday

    Monday: A 10 percent chance of showers before 7am. Partly sunny, with a high near 70. North northeast wind around 15 mph, with gusts as high as 25 mph.

    High: 70 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers after 1am. Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: Showers likely, with thunderstorms also possible after 1pm. Partly sunny, with a high near 78.

    High: 78 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 77. Northwest wind around 10 mph, with gusts as high as 20 mph.
Tonight
Partly cloudy, with a low around 57. Northeast wind around 5 mph becoming calm after midnight. Winds could gust as high as 10 mph.
Sunday
Showers, mainly after noon. High near 70. East wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Showers, mainly before 1am. Low around 57. East northeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
Monday
A 10 percent chance of showers before 7am. Partly sunny, with a high near 70. North northeast wind around 15 mph, with gusts as high as 25 mph.
Monday Night
Mostly clear, with a low around 54.
Tuesday
Mostly sunny, with a high near 73.
Tuesday Night
A chance of showers after 1am. Partly cloudy, with a low around 58.
Wednesday
Showers likely, with thunderstorms also possible after 1pm. Partly sunny, with a high near 78.
Wednesday Night
A chance of showers before 1am. Partly cloudy, with a low around 58.
Thursday
Mostly sunny, with a high near 76.
Thursday Night
Partly cloudy, with a low around 58.
Friday
Mostly sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Northbrook IL
 42.13°N 87.86°W
Last Update:
2:52 pm CDT Jun 20, 2026
Forecast Valid:
3pm CDT Jun 20, 2026-6pm CDT Jun 26, 2026
 
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