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Demarest, NJ Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Demarest, a borough in Bergen County, New Jersey.

Overnight
65°F
Partly Cloudy
Partly cloudy. Low around 65, with temperatures rising to around 67 overnight. Northwest wind around 2 mph.

7-day forecast for Demarest

WhenTempForecastWindPrecip
Overnight 65°F Partly Cloudy 2 mph NW 0%
Tuesday 84°F Mostly Sunny 3 mph NE 0%
Tuesday Night 67°F Mostly Cloudy 3 mph SE 3%
Wednesday 83°F Partly Sunny then Chance Showers And Thunderstorms 2 to 6 mph SE 31%
Wednesday Night 72°F Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms 2 to 6 mph S 32%
Thursday 89°F Chance Showers And Thunderstorms 2 to 8 mph SW 45%
Thursday Night 74°F Chance Showers And Thunderstorms then Partly Cloudy 3 to 7 mph SW 44%
Friday 90°F Mostly Sunny then Chance Showers And Thunderstorms 3 to 7 mph SW 44%
Friday Night 73°F Chance Showers And Thunderstorms 2 to 6 mph SW 42%
Saturday 88°F Partly Sunny then Chance Showers And Thunderstorms 2 to 7 mph SW 34%
Saturday Night 72°F Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms 2 to 7 mph W 34%
Sunday 89°F Mostly Sunny then Slight Chance Showers And Thunderstorms 2 to 7 mph W 15%
Sunday Night 73°F Slight Chance Showers And Thunderstorms then Mostly Clear 6 mph SW 15%
Monday 90°F Sunny 3 to 9 mph W 13%

Forecast source: National Weather Service (api.weather.gov) for Demarest (40.954, -73.955). Updated through the day.

Growing snapshot for Demarest

Last spring frost
Apr 20
First fall frost
Oct 26
Growing season
189 days
Hardiness zone
7b

More local growing data for Demarest: nearby ZIP 07627 weather · frost dates · planting calendar · New Jersey frost dates

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Climate data from the nearest NOAA station, Dobbs Ferry-Ardsley, Ny (7.3 mi from Demarest). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.