Riverdale, NJ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Riverdale, a borough in Morris County, New Jersey.
Tonight
56°F
Mostly Cloudy then Slight Chance Rain Showers
A slight chance of rain showers after 5am. Mostly cloudy, with a low around 56. Southeast wind around 0 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Riverdale
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 56°F | Mostly Cloudy then Slight Chance Rain Showers | 0 mph | 19% |
| Sunday | 69°F | Rain Showers | 0 to 5 mph SE | 95% |
| Sunday Night | 54°F | Showers And Thunderstorms then Mostly Cloudy | 0 to 5 mph N | 85% |
| Monday | 67°F | Partly Sunny then Slight Chance Rain Showers | 5 to 10 mph NE | 19% |
| Monday Night | 50°F | Chance Rain Showers | 5 mph NE | 29% |
| Tuesday | 63°F | Chance Rain Showers | 5 mph NE | 29% |
| Tuesday Night | 48°F | Chance Rain Showers then Mostly Cloudy | 5 to 10 mph NE | 27% |
| Wednesday | 63°F | Mostly Cloudy | 10 mph NE | 12% |
| Wednesday Night | 48°F | Slight Chance Rain Showers | 5 to 10 mph NE | 20% |
| Thursday | 62°F | Chance Rain Showers | 10 mph NE | 27% |
| Thursday Night | 48°F | Chance Rain Showers | 10 mph NE | 34% |
| Friday | 64°F | Chance Rain Showers | 10 to 15 mph N | 34% |
| Friday Night | 50°F | Chance Rain Showers | 5 to 10 mph N | 35% |
| Saturday | 67°F | Chance Rain Showers | 10 mph N | 30% |
Forecast source: National Weather Service (api.weather.gov) for Riverdale (40.996, -74.315). Updated through the day.
Growing snapshot for Riverdale
Last spring frost
Apr 19
First fall frost
Oct 23
Growing season
188 days
Hardiness zone
7a
More local growing data for Riverdale: nearby ZIP 07457 weather · frost dates · planting calendar · New Jersey frost dates
Nearby towns & communities
Beattystown
Boonton
Brookside
Budd Lake
Cedar Knolls
Chester
Dover
Flanders
Florham Park
Gillette
Green Village
Hibernia
Kenvil
Kinnelon
Lake Hiawatha
Lake Hopatcong
Lake Telemark
Landing
Ledgewood
Lincoln Park
Long Valley
Lower Berkshire Valley
Macopin
Madison
Mendham
Millington
Morris Plains
Morristown
Mount Arlington
Mount Hope
Climate data from the nearest NOAA station, Wanaque Raymond Dam, Nj (3.5 mi from Riverdale). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.