Severe Weather and Heavy Rainfall from the Midwest to the Ohio Valley; Mid-Summer Heat Continues

Severe thunderstorm and heavy rainfall threats will persist from the Midwest to Lower Great Lakes through Monday, shifting into the Ohio Valley and Central Appalachians Monday evening into Tuesday. Mid-summer heat will continue across much of the CONUS this week, with record highs possible well into the 100s across the south-central High Plains. Read More >

Current conditions at

Chicago / Wheeling, Pal-Waukee Airport (KPWK)

Lat: 42.12°NLon: 87.9°WElev: 646ft.

Thunderstorm Heavy Rain Fog/Mist

75°F

24°C

Humidity 96%
Wind Speed S 9 mph
Barometer 29.88 in (1011.4 mb)
Dewpoint 74°F (23°C)
Visibility 1.50 mi
Last update 9 Aug 11:52 pm CDT
Extended Forecast for

Northbrook IL

Severe T-storm Watch until August 10, 04:00am
Flood Watch August 10, 01:18am until August 10, 07:00am
Click here for hazard details and duration
Severe T-storm Watch
Flood Watch
  •  
    Severe T-storm Watch until August 10, 04:00am
    Flood Watch August 10, 01:18am until August 10, 07:00am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Overnight

    Low: 74 °F

    Severe
    Thunderstorms

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly after 2pm.  Mostly cloudy, with a high near 81. West wind around 5 mph becoming east northeast in the afternoon.

    High: 81 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 69. East wind around 5 mph.

    Low: 69 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: Showers and thunderstorms likely, mainly between 9am and 1pm.  Mostly cloudy, with a high near 80. Southeast wind around 5 mph becoming east northeast in the afternoon. Winds could gust as high as 10 mph.  Chance of precipitation is 70%.

    High: 80 °F

    T-storms
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am.  Mostly cloudy, with a low around 69. East northeast wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 60%.

    Low: 69 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers after 4pm.  Partly sunny, with a high near 81. Chance of precipitation is 30%.

    High: 81 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A slight chance of showers before 7pm, then a slight chance of showers and thunderstorms between 7pm and 1am.  Partly cloudy, with a low around 69. Chance of precipitation is 20%.

    Low: 69 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: Mostly cloudy, with a high near 77.

    High: 77 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Showers and thunderstorms likely, mainly before 2am. Some of the storms could be severe. Cloudy, with a steady temperature around 74. South southwest wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Monday
A 30 percent chance of showers and thunderstorms, mainly after 2pm. Mostly cloudy, with a high near 81. West wind around 5 mph becoming east northeast in the afternoon.
Monday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. East wind around 5 mph.
Tuesday
Showers and thunderstorms likely, mainly between 9am and 1pm. Mostly cloudy, with a high near 80. Southeast wind around 5 mph becoming east northeast in the afternoon. Winds could gust as high as 10 mph. Chance of precipitation is 70%.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 69. East northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Wednesday
A chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers after 4pm. Partly sunny, with a high near 81. Chance of precipitation is 30%.
Wednesday Night
A slight chance of showers before 7pm, then a slight chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 69. Chance of precipitation is 20%.
Thursday
Mostly cloudy, with a high near 77.
Thursday Night
Mostly cloudy, with a low around 63.
Friday
Partly sunny, with a high near 74.
Friday Night
A chance of showers. Mostly cloudy, with a low around 62.
Saturday
A chance of showers. Partly sunny, with a high near 76.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 64.
Sunday
A chance of showers. Mostly cloudy, with a high near 77.
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ABOUT THIS FORECAST

 
Point Forecast:
Northbrook IL
 42.13°N 87.83°W
1:01 am CDT Aug 10, 2026
1am CDT Aug 10, 2026-6pm CDT Aug 16, 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