Bloomsbury, NJ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bloomsbury, a borough in Hunterdon County, New Jersey.
Overnight
60°F
Partly Cloudy
Partly cloudy, with a low around 60. Wind around 0 mph.
7-day forecast for Bloomsbury
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 60°F | Partly Cloudy | 0 mph | 0% |
| Tuesday | 84°F | Mostly Sunny | 0 mph | 0% |
| Tuesday Night | 63°F | Mostly Cloudy | 0 mph | 1% |
| Wednesday | 83°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 0 mph | 43% |
| Wednesday Night | 69°F | Showers And Thunderstorms Likely | 0 mph | 58% |
| Thursday | 88°F | Showers And Thunderstorms Likely | 0 to 5 mph SW | 71% |
| Thursday Night | 71°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 0 to 5 mph SW | 71% |
| Friday | 88°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SW | 53% |
| Friday Night | 69°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 53% |
| Saturday | 86°F | Partly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph W | 44% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 44% |
| Sunday | 87°F | Mostly Sunny | 0 to 5 mph W | 12% |
| Sunday Night | 69°F | Mostly Clear | 0 to 5 mph SW | 12% |
| Monday | 89°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 16% |
Forecast source: National Weather Service (api.weather.gov) for Bloomsbury (40.657, -75.076). Updated through the day.
Growing snapshot for Bloomsbury
Last spring frost
Apr 18
First fall frost
Oct 25
Growing season
188 days
Hardiness zone
7a
More local growing data for Bloomsbury: nearby ZIP 08804 weather · frost dates · planting calendar · New Jersey frost dates
Nearby towns & communities
Annandale
Asbury
Califon
Clinton
Flemington
Frenchtown
Glen Gardner
Hampton
High Bridge
Lambertville
Lebanon
Milford
Oldwick
Pottersville
Ringoes
Stockton
Three Bridges
White House Station
Climate data from the nearest NOAA station, Phillipsburg-Easton Brg, Nj (6.4 mi from Bloomsbury). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.