Brass Castle, NJ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Brass Castle, a community in Warren County, New Jersey.
This Afternoon
70°F
Partly Sunny
Partly sunny, with a high near 70. Southeast wind around 0 mph.
7-day forecast for Brass Castle
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Partly Sunny | 0 mph | 1% |
| Tonight | 58°F | Mostly Cloudy then Chance Rain Showers | 0 to 5 mph SE | 45% |
| Sunday | 69°F | Rain Showers | 5 mph SE | 95% |
| Sunday Night | 56°F | Showers And Thunderstorms then Mostly Cloudy | 0 to 10 mph NW | 86% |
| Monday | 67°F | Partly Sunny then Slight Chance Rain Showers | 5 to 10 mph NE | 22% |
| Monday Night | 51°F | Chance Rain Showers | 5 to 10 mph NE | 31% |
| Tuesday | 62°F | Chance Rain Showers | 5 to 10 mph NE | 36% |
| Tuesday Night | 49°F | Chance Rain Showers then Mostly Cloudy | 5 to 10 mph NE | 33% |
| Wednesday | 61°F | Slight Chance Rain Showers | 10 mph NE | 19% |
| Wednesday Night | 48°F | Slight Chance Rain Showers | 5 to 15 mph NE | 21% |
| Thursday | 60°F | Slight Chance Rain Showers | 5 to 15 mph NE | 24% |
| Thursday Night | 48°F | Chance Rain Showers | 5 to 15 mph NE | 30% |
| Friday | 63°F | Chance Rain Showers | 10 to 15 mph N | 33% |
| Friday Night | 50°F | Chance Rain Showers | 5 to 10 mph N | 33% |
Forecast source: National Weather Service (api.weather.gov) for Brass Castle (40.763, -75.026). Updated through the day.
Growing snapshot for Brass Castle
Last spring frost
Apr 30
First fall frost
Oct 18
Growing season
168 days
Hardiness zone
6b
More local growing data for Brass Castle: nearby ZIP 07882 weather · frost dates · planting calendar · New Jersey frost dates
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Climate data from the nearest NOAA station, Belvidere Brg, Nj (6.4 mi from Brass Castle). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.