Northbrook, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Northbrook, a village in Cook County, Illinois.
This Afternoon
72°F
Chance Rain Showers
A chance of rain showers. Mostly cloudy. High near 72, with temperatures falling to around 69 in the afternoon. East northeast wind 10 to 15 mph. Chance of precipitation is 40%.
7-day forecast for Northbrook
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 72°F | Chance Rain Showers | 10 to 15 mph ENE | 36% |
| Tonight | 61°F | Slight Chance Rain Showers then Showers And Thunderstorms Likely | 10 to 15 mph E | 57% |
| Saturday | 76°F | Showers And Thunderstorms Likely | 10 to 15 mph SE | 91% |
| Saturday Night | 63°F | Showers And Thunderstorms Likely then Showers And Thunderstorms | 5 to 10 mph NE | 80% |
| Sunday | 68°F | Showers And Thunderstorms | 10 to 20 mph NNE | 77% |
| Sunday Night | 55°F | Chance Rain Showers | 15 mph NE | 51% |
| Monday | 65°F | Chance Rain Showers | 15 mph ENE | 44% |
| Monday Night | 53°F | Chance Rain Showers | 10 to 15 mph ENE | 32% |
| Tuesday | 64°F | Slight Chance Rain Showers | 15 mph NE | 21% |
| Tuesday Night | 53°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 15 mph NE | 20% |
| Wednesday | 65°F | Partly Sunny | 10 mph NE | 12% |
| Wednesday Night | 53°F | Mostly Cloudy | 5 to 10 mph NNE | 3% |
| Thursday | 68°F | Partly Sunny | 5 to 10 mph NNE | 7% |
| Thursday Night | 55°F | Mostly Cloudy | 5 mph NNE | 5% |
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 Sep 18, 2026.