Rio Grande, NJ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Rio Grande, a community in Cape May County, New Jersey.
This Afternoon
75°F
Mostly Sunny
Mostly sunny, with a high near 75. East wind around 10 mph.
7-day forecast for Rio Grande
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 75°F | Mostly Sunny | 10 mph E | 4% |
| Tonight | 64°F | Partly Cloudy | 5 to 10 mph E | 5% |
| Sunday | 80°F | Mostly Sunny | 5 to 15 mph SE | 12% |
| Sunday Night | 63°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 10 mph SW | 46% |
| Monday | 75°F | Chance Rain Showers | 5 to 15 mph N | 46% |
| Monday Night | 60°F | Chance Rain Showers | 10 to 15 mph NE | 46% |
| Tuesday | 73°F | Chance Rain Showers | 15 to 20 mph NE | 39% |
| Tuesday Night | 59°F | Chance Rain Showers | 15 to 20 mph NE | 39% |
| Wednesday | 72°F | Chance Rain Showers | 20 to 25 mph NE | 32% |
| Wednesday Night | 59°F | Chance Rain Showers | 20 to 25 mph NE | 37% |
| Thursday | 71°F | Chance Rain Showers | 20 to 25 mph NE | 42% |
| Thursday Night | 57°F | Chance Rain Showers | 15 to 25 mph NE | 42% |
| Friday | 71°F | Chance Rain Showers | 20 mph N | 36% |
| Friday Night | 57°F | Chance Rain Showers | 10 to 20 mph N | 35% |
Forecast source: National Weather Service (api.weather.gov) for Rio Grande (39.019, -74.878). Updated through the day.
Growing snapshot for Rio Grande
Last spring frost
Apr 1
First fall frost
Nov 9
Growing season
222 days
Hardiness zone
8a
More local growing data for Rio Grande: nearby ZIP 08242 weather · frost dates · planting calendar · New Jersey frost dates
Nearby towns & communities
Avalon
Beesleys Point
Belleplain
Burleigh
Cape May
Cape May Court House
Cape May Point
Corbin City
Dennisville
Diamond Beach
Erma
Goshen
Marmora
Marshallville
North Cape May
North Wildwood
Ocean City
Ocean View
Palermo
Sea Isle City
Seaville
South Dennis
South Seaville
Stone Harbor
Strathmere
Tuckahoe
Villas
West Cape May
West Wildwood
Whitesboro
Climate data from the nearest NOAA station, Cape May 2 Nw, Nj (5.2 mi from Rio Grande). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.