Allendale, NJ Weather & Growing Conditions
Today
75°F
Sunny
Sunny. High near 75, with temperatures falling to around 68 in the afternoon. South wind around 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 75°F | Sunny | 7 mph S | 0% |
| Tonight | 55°F | Mostly Cloudy | 3 mph S | 0% |
| Thursday | 72°F | Chance Rain Showers | 3 to 8 mph S | 47% |
| Thursday Night | 59°F | Rain Showers Likely | 5 mph SW | 56% |
| Friday | 70°F | Rain Showers | 2 mph SE | 77% |
| Friday Night | 50°F | Rain Showers Likely | 3 mph N | 56% |
| Saturday | 64°F | Mostly Sunny then Slight Chance Rain Showers | 6 mph NW | 17% |
| Saturday Night | 42°F | Slight Chance Light Rain | 6 mph W | 24% |
| Sunday | 58°F | Mostly Sunny | 7 mph NW | 12% |
| Sunday Night | 38°F | Partly Cloudy | 5 mph W | 4% |
| Monday | 58°F | Sunny | 6 to 10 mph W | 10% |
| Monday Night | 37°F | Mostly Clear | 6 mph W | 10% |
| Tuesday | 61°F | Sunny | 5 to 9 mph SW | 4% |
| Tuesday Night | 37°F | Mostly Clear | 6 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Allendale, NJ
Last spring frost
Apr 19
First fall frost
Oct 23
Growing season
188 days
Hardiness zone
7a
Explore more for Allendale, NJ: full frost dates · planting calendar · New Jersey frost dates
Climate data from the nearest NOAA station, Wanaque Raymond Dam, Nj (8.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.