Northbrook, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Northbrook, a community in Hamilton County, Ohio.
Overnight
62°F
Showers And Thunderstorms
A chance of rain showers between 1am and 4am, then showers and thunderstorms. Mostly cloudy, with a low around 62. South wind around 13 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Northbrook
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 62°F | Showers And Thunderstorms | 13 mph S | 78% |
| Wednesday | 68°F | Showers And Thunderstorms | 10 to 16 mph S | 96% |
| Wednesday Night | 51°F | Slight Chance Rain Showers | 5 to 8 mph SW | 24% |
| Thursday | 66°F | Mostly Sunny | 5 to 12 mph SW | 0% |
| Thursday Night | 46°F | Partly Cloudy | 2 to 6 mph SW | 1% |
| Friday | 61°F | Partly Sunny | 2 to 8 mph NW | 8% |
| Friday Night | 41°F | Partly Cloudy | 7 mph NW | 14% |
| Saturday | 56°F | Mostly Sunny | 7 mph NW | 14% |
| Saturday Night | 36°F | Partly Cloudy | 3 mph W | 9% |
| Sunday | 58°F | Mostly Sunny | 2 to 9 mph W | 8% |
| Sunday Night | 36°F | Partly Cloudy | 7 mph W | 13% |
| Monday | 60°F | Sunny | 5 to 10 mph W | 13% |
| Monday Night | 39°F | Mostly Clear | 7 mph SW | 10% |
| Tuesday | 64°F | Sunny | 7 to 10 mph W | 2% |
Forecast source: National Weather Service (api.weather.gov) for Northbrook (39.247, -84.580). Updated through the day.
Growing snapshot for Northbrook
Last spring frost
Apr 19
First fall frost
Oct 22
Growing season
186 days
Hardiness zone
6b
More local growing data for Northbrook: nearby ZIP 45251 weather · frost dates · planting calendar · Ohio frost dates
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Climate data from the nearest NOAA station, Fairfield, Oh (5.1 mi from Northbrook). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.