Demarest, NJ Weather & Growing Conditions
Overnight
60°F
Mostly Cloudy
Mostly cloudy. Low around 60, with temperatures rising to around 62 overnight. Southeast wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 60°F | Mostly Cloudy | 6 mph SE | 12% |
| Sunday | 71°F | Rain Showers then Rain | 6 to 9 mph SE | 91% |
| Sunday Night | 57°F | Rain then Rain Showers Likely | 5 to 12 mph W | 84% |
| Monday | 69°F | Slight Chance Rain Showers | 8 to 13 mph NE | 20% |
| Monday Night | 54°F | Chance Rain Showers | 9 mph NE | 28% |
| Tuesday | 64°F | Chance Rain Showers | 10 mph NE | 28% |
| Tuesday Night | 51°F | Chance Rain Showers then Mostly Cloudy | 12 mph NE | 25% |
| Wednesday | 65°F | Mostly Cloudy | 14 mph NE | 11% |
| Wednesday Night | 51°F | Slight Chance Rain Showers | 14 mph NE | 19% |
| Thursday | 64°F | Chance Rain Showers | 15 mph NE | 28% |
| Thursday Night | 51°F | Chance Rain Showers | 15 mph NE | 36% |
| Friday | 65°F | Chance Rain Showers | 14 to 17 mph N | 38% |
| Friday Night | 53°F | Chance Rain Showers | 13 to 17 mph N | 35% |
| Saturday | 69°F | Chance Rain Showers | 12 to 15 mph N | 29% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Demarest, NJ
Last spring frost
Apr 20
First fall frost
Oct 26
Growing season
189 days
Hardiness zone
7b
Explore more for Demarest, NJ: full frost dates · planting calendar · New Jersey frost dates
Climate data from the nearest NOAA station, Dobbs Ferry-Ardsley, Ny (7.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.