Northbrook, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Northbrook, a village in Cook County, Illinois.
Today
85°F
Mostly Sunny
Mostly sunny, with a high near 85. South southwest wind around 10 mph.
7-day forecast for Northbrook
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Mostly Sunny | 10 mph SSW | 1% |
| Tonight | 69°F | Mostly Cloudy then Chance Showers And Thunderstorms | 5 mph SSW | 32% |
| Wednesday | 79°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 5 mph WSW | 73% |
| Wednesday Night | 64°F | Showers And Thunderstorms | 0 to 5 mph NNW | 88% |
| Thursday | 77°F | Rain Showers Likely then Slight Chance Showers And Thunderstorms | 0 to 5 mph N | 63% |
| Thursday Night | 63°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph S | 18% |
| Friday | 81°F | Mostly Sunny | 0 to 5 mph N | 3% |
| Friday Night | 65°F | Mostly Clear | 0 to 5 mph SSE | 8% |
| Saturday | 86°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 mph SSW | 15% |
| Saturday Night | 70°F | Slight Chance Showers And Thunderstorms | 5 mph SW | 21% |
| Sunday | 87°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 21% |
| Sunday Night | 70°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 46% |
| Monday | 85°F | Chance Showers And Thunderstorms | 5 to 10 mph SSW | 46% |
| Monday Night | 69°F | Chance Showers And Thunderstorms | 5 to 10 mph WSW | 49% |
Forecast source: National Weather Service (api.weather.gov) for Northbrook (42.129, -87.835). Updated through the day.
Growing snapshot for Northbrook
Last spring frost
Apr 19
First fall frost
Oct 26
Growing season
190 days
Hardiness zone
6a
More local growing data for Northbrook: nearby ZIP 60062 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Alsip
Arbury Hills
Arlington Heights
Barrington
Barrington Hills
Bedford Park
Bellwood
Berkeley
Berwyn
Blue Island
Bridgeview
Broadview
Brookfield
Burbank
Burnham
Calumet City
Calumet Park
Chicago
Chicago Heights
Chicago Ridge
Cicero
Country Club Hills
Countryside
Crestwood
Crete
Des Plaines
Dixmoor
Dolton
East Hazel Crest
Elk Grove Village
Climate data from the nearest NOAA station, Chicago Palwaukee Ap, Il (3.1 mi from Northbrook). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.