Illinois · NWS LOT office
Northbrook, IL weather
It is 54°F and clear at Chicago / Wheeling, Pal-Waukee Airport as of Oct 28, 1:15 AM CDT. Overnight: Partly Cloudy, low near 53°F, 1% chance of precipitation. Forecast from the National Weather Service, issued Oct 27, 11:35 PM CDT.
Current conditions
Temperature
54°F
Clear
Wind
Calm
Humidity 94% · dew point 52°F
Pressure · visibility
30.20 inHg
Visibility 10 mi
Observed at Chicago / Wheeling, Pal-Waukee Airport (KPWK), Oct 28, 1:15 AM CDT. Station readings can lag or be missing.
Alerts for this area
No active NWS alerts cover the Northbrook forecast zone right now.
Around the NWS LOT forecast area
No active alerts in zones served by the LOT office near Northbrook.
From the alert snapshot of Oct 28, 2026, 2:15 AM EDT. No alerts are active anywhere in Illinois.
For official warnings, check weather.gov and your local authorities. OpenForecast repeats National Weather Service alerts and may be delayed or incomplete. Follow instructions from emergency officials.
Next 24 hours
| Time | Temp | Forecast | Precip. chance | Wind |
|---|---|---|---|---|
| Wed 1 AM | 53°F | Mostly Cloudy | 1% | S 5 mph |
| Wed 2 AM | 53°F | Mostly Cloudy | 1% | S 5 mph |
| Wed 3 AM | 54°F | Partly Cloudy | 1% | S 5 mph |
| Wed 4 AM | 54°F | Partly Cloudy | 1% | SSW 5 mph |
| Wed 5 AM | 54°F | Mostly Clear | 1% | SSW 5 mph |
| Wed 6 AM | 54°F | Sunny | 1% | 0 mph |
| Wed 7 AM | 53°F | Sunny | 0% | SSW 5 mph |
| Wed 8 AM | 54°F | Sunny | 0% | SSW 5 mph |
| Wed 9 AM | 58°F | Sunny | 0% | SSW 5 mph |
| Wed 10 AM | 62°F | Sunny | 0% | SSW 5 mph |
| Wed 11 AM | 65°F | Sunny | 0% | SSW 10 mph |
| Wed 12 PM | 68°F | Sunny | 0% | S 10 mph |
| Wed 1 PM | 71°F | Sunny | 0% | S 10 mph |
| Wed 2 PM | 73°F | Sunny | 0% | S 10 mph |
| Wed 3 PM | 74°F | Sunny | 0% | S 15 mph |
| Wed 4 PM | 73°F | Sunny | 0% | S 10 mph |
| Wed 5 PM | 72°F | Sunny | 1% | S 10 mph |
| Wed 6 PM | 69°F | Partly Cloudy | 1% | S 10 mph |
| Wed 7 PM | 67°F | Mostly Clear | 3% | S 10 mph |
| Wed 8 PM | 65°F | Mostly Clear | 3% | S 10 mph |
| Wed 9 PM | 64°F | Mostly Clear | 2% | S 10 mph |
| Wed 10 PM | 63°F | Mostly Clear | 2% | S 10 mph |
| Wed 11 PM | 62°F | Mostly Clear | 3% | S 15 mph |
| Thu 12 AM | 62°F | Mostly Clear | 3% | SSW 15 mph |
Hourly values come from the NWS gridded forecast for the 2.5 km grid square that covers the city's center point. Conditions elsewhere in Northbrook can differ.
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7-day forecast
Overnight
Low 53°F
Partly cloudy, with a low around 53. South wind around 5 mph.
Wednesday
High 74°F·Low 61°F
Sunny. High near 74, with temperatures falling to around 71 in the afternoon. South southwest wind 0 to 15 mph, with gusts as high as 25 mph.
Wednesday Night: A slight chance of rain showers after 1am. Partly cloudy, with a low around 61. South southwest wind 10 to 15 mph. Chance of precipitation is 20%.
Thursday
High 68°F·Low 50°F
A chance of rain showers before 1pm. Mostly sunny, with a high near 68. West wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Thursday Night: Mostly clear, with a low around 50. North northwest wind around 5 mph.
Friday
High 61°F·Low 50°F
A slight chance of rain showers after 1pm. Partly sunny, with a high near 61. Chance of precipitation is 20%.
Friday Night: A chance of rain showers. Cloudy, with a low around 50.
Saturday
High 63°F·Low 52°F
A chance of rain showers. Cloudy, with a high near 63.
Saturday Night: A slight chance of rain showers. Cloudy, with a low around 52.
Sunday
High 64°F·Low 52°F
A chance of rain showers. Mostly cloudy, with a high near 64.
Sunday Night: A chance of rain showers. Mostly cloudy, with a low around 52.
Monday
High 66°F·Low 51°F
A chance of rain showers. Mostly cloudy, with a high near 66.
Monday Night: A chance of rain showers. Cloudy, with a low around 51.
Tuesday
High 63°F
Rain showers likely. Mostly cloudy, with a high near 63.
Nearby cities
- Glenview, IL 3 mi
- Highland Park, IL 4 mi
- Wheeling, IL 4 mi
- Morton Grove, IL 6 mi
- Wilmette, IL 7 mi
- Mount Prospect, IL 7 mi
- Buffalo Grove, IL 7 mi
- Niles, IL 7 mi
Larger cities in the area
- Chicago, IL 22 mi · pop. 2,721,308
- Naperville, IL 31 mi · pop. 153,124
- Aurora, IL 34 mi · pop. 180,710
- Milwaukee, WI 65 mi · pop. 563,531
Other cities in Cook County
- Chicago
- Cicero
- Schaumburg
- Evanston
- Arlington Heights
- Palatine
- Skokie
- Des Plaines
- Orland Park
- Oak Lawn
- Mount Prospect
- Berwyn
See every city we cover in Illinois, or check all active alerts.
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About this forecast
- Forecast office
- Northbrook is served by the National Weather Service LOT forecast office, forecast zone ILZ103, county zone ILC031.
- Location used
- The Census Bureau's internal point for Northbrook (42.1287, -87.8352), in Cook County. Population: 34,546 (2024 estimate), number 54 of the 121 Illinois cities on this site.
- Radar
- Nearest NWS radar: KLOT. View it on radar.weather.gov.
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Sources
- Forecast, hourly forecast, observations and alerts: National Weather Service API, api.weather.gov/points/42.1287,-87.8352 (forecast issued Oct 27, 11:35 PM CDT).
- Official forecast page: forecast.weather.gov.
- City location and population: U.S. Census Bureau, Vintage 2024 population estimates and 2024 Gazetteer files.
- Snapshot taken Oct 28, 2026. The NWS and Census Bureau do not endorse OpenForecast.
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