Alpine, NJ Weather & Growing Conditions
This Afternoon
70°F
Mostly Sunny
Mostly sunny, with a high near 70. East wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Mostly Sunny | 6 mph E | 1% |
| Tonight | 59°F | Mostly Cloudy | 7 mph SE | 11% |
| Sunday | 70°F | Rain Showers then Rain | 9 mph SE | 91% |
| Sunday Night | 57°F | Rain then Rain Showers Likely | 6 to 14 mph W | 84% |
| Monday | 67°F | Slight Chance Rain Showers | 8 to 14 mph NE | 19% |
| Monday Night | 53°F | Chance Rain Showers | 10 mph NE | 27% |
| Tuesday | 63°F | Chance Rain Showers | 10 mph NE | 27% |
| Tuesday Night | 51°F | Chance Rain Showers then Mostly Cloudy | 12 mph NE | 25% |
| Wednesday | 64°F | Mostly Cloudy | 14 mph NE | 10% |
| Wednesday Night | 51°F | Slight Chance Rain Showers | 14 mph NE | 20% |
| Thursday | 63°F | Chance Rain Showers | 14 mph NE | 28% |
| Thursday Night | 51°F | Chance Rain Showers | 15 mph NE | 35% |
| Friday | 64°F | Chance Rain Showers | 14 to 17 mph N | 38% |
| Friday Night | 53°F | Chance Rain Showers | 13 to 16 mph N | 36% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Alpine, NJ
Last spring frost
Apr 20
First fall frost
Oct 26
Growing season
189 days
Hardiness zone
7a
Explore more for Alpine, NJ: full frost dates · planting calendar · New Jersey frost dates
Climate data from the nearest NOAA station, Dobbs Ferry-Ardsley, Ny (5.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.