Port Monmouth, NJ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Port Monmouth, a community in Monmouth County, New Jersey.
Today
83°F
Mostly Sunny
Mostly sunny, with a high near 83. East wind 0 to 5 mph.
7-day forecast for Port Monmouth
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Mostly Sunny | 0 to 5 mph E | 0% |
| Tonight | 68°F | Mostly Cloudy | 0 to 5 mph E | 2% |
| Wednesday | 83°F | Partly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph E | 42% |
| Wednesday Night | 73°F | Slight Chance Showers And Thunderstorms | 5 mph S | 22% |
| Thursday | 91°F | Chance Showers And Thunderstorms | 5 to 10 mph S | 36% |
| Thursday Night | 74°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 36% |
| Friday | 92°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 mph SW | 41% |
| Friday Night | 74°F | Chance Showers And Thunderstorms | 5 mph SW | 41% |
| Saturday | 87°F | Partly Sunny then Chance Showers And Thunderstorms | 5 mph SW | 32% |
| Saturday Night | 73°F | Chance Showers And Thunderstorms | 5 mph W | 32% |
| Sunday | 87°F | Mostly Sunny | 5 mph W | 12% |
| Sunday Night | 74°F | Partly Cloudy | 5 mph SW | 12% |
| Monday | 89°F | Mostly Sunny | 5 to 10 mph W | 9% |
| Monday Night | 74°F | Partly Cloudy | 5 to 10 mph W | 13% |
Forecast source: National Weather Service (api.weather.gov) for Port Monmouth (40.434, -74.101). Updated through the day.
Growing snapshot for Port Monmouth
Last spring frost
Apr 9
First fall frost
Nov 3
Growing season
208 days
Hardiness zone
7b
More local growing data for Port Monmouth: nearby ZIP 07758 weather · frost dates · planting calendar · New Jersey frost dates
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Long Branch
Climate data from the nearest NOAA station, Long Branch-Oakhurst, Nj (10.8 mi from Port Monmouth). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.