Northbrook, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Northbrook, a community in Hamilton County, Ohio.
Overnight
59°F
Clear
Clear, with a low around 59. Northeast wind around 2 mph.
7-day forecast for Northbrook
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 59°F | Clear | 2 mph NE | 0% |
| Tuesday | 86°F | Sunny | 5 mph NE | 0% |
| Tuesday Night | 66°F | Mostly Clear | 5 mph N | 2% |
| Wednesday | 89°F | Sunny then Slight Chance Showers And Thunderstorms | 3 mph N | 15% |
| Wednesday Night | 68°F | Partly Cloudy | 3 mph W | 5% |
| Thursday | 88°F | Mostly Sunny then Chance Showers And Thunderstorms | 1 to 8 mph SW | 26% |
| Thursday Night | 70°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 2 to 6 mph S | 60% |
| Friday | 86°F | Showers And Thunderstorms Likely | 3 to 8 mph SW | 65% |
| Friday Night | 68°F | Showers And Thunderstorms Likely | 2 to 6 mph SW | 65% |
| Saturday | 86°F | Chance Showers And Thunderstorms | 2 to 7 mph SW | 38% |
| Saturday Night | 69°F | Chance Showers And Thunderstorms | 2 to 6 mph SW | 31% |
| Sunday | 89°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 2 to 9 mph SW | 15% |
| Sunday Night | 71°F | Slight Chance Showers And Thunderstorms | 3 to 7 mph SW | 16% |
| Monday | 90°F | Slight Chance Showers And Thunderstorms | 6 to 10 mph SW | 22% |
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 Aug 4, 2026.