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.
Today
82°F
Mostly Sunny
Mostly sunny, with a high near 82. Northeast wind around 0 mph.
7-day forecast for Brass Castle
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Mostly Sunny | 0 mph | 0% |
| Tonight | 63°F | Mostly Cloudy | 0 mph | 1% |
| Wednesday | 81°F | Partly Sunny then Chance Showers And Thunderstorms | 0 mph | 47% |
| Wednesday Night | 69°F | Showers And Thunderstorms Likely | 0 mph | 58% |
| Thursday | 86°F | Showers And Thunderstorms Likely | 0 to 5 mph SW | 74% |
| Thursday Night | 70°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 0 to 5 mph SW | 74% |
| Friday | 86°F | Mostly Sunny then Showers And Thunderstorms Likely | 0 to 5 mph SW | 55% |
| Friday Night | 69°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 0 to 5 mph W | 55% |
| Saturday | 84°F | Partly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph W | 47% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 47% |
| Sunday | 85°F | Mostly Sunny | 0 to 5 mph W | 12% |
| Sunday Night | 69°F | Mostly Clear | 0 to 5 mph SW | 12% |
| Monday | 87°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 17% |
| Monday Night | 68°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph W | 17% |
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 Aug 4, 2026.