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Allendale, NJ Weather & Growing Conditions

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

Overnight
62°F
Partly Cloudy
Partly cloudy. Low around 62, with temperatures rising to around 64 overnight. North wind around 3 mph.

7-day forecast for Allendale

WhenTempForecastWindPrecip
Overnight 62°F Partly Cloudy 3 mph N 0%
Tuesday 84°F Mostly Sunny 3 mph NE 0%
Tuesday Night 64°F Mostly Cloudy 2 mph W 2%
Wednesday 83°F Partly Sunny then Chance Showers And Thunderstorms 5 mph SE 29%
Wednesday Night 70°F Chance Showers And Thunderstorms 3 mph S 37%
Thursday 88°F Slight Chance Rain Showers then Chance Showers And Thunderstorms 2 to 7 mph SW 50%
Thursday Night 72°F Chance Showers And Thunderstorms then Partly Cloudy 2 to 6 mph SW 48%
Friday 89°F Mostly Sunny then Chance Showers And Thunderstorms 2 to 6 mph SW 45%
Friday Night 71°F Chance Showers And Thunderstorms 1 to 5 mph W 42%
Saturday 87°F Partly Sunny then Chance Showers And Thunderstorms 1 to 7 mph W 37%
Saturday Night 69°F Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms 1 to 6 mph W 37%
Sunday 88°F Mostly Sunny then Slight Chance Showers And Thunderstorms 1 to 6 mph W 15%
Sunday Night 71°F Slight Chance Showers And Thunderstorms then Mostly Clear 5 mph W 15%
Monday 89°F Sunny 2 to 9 mph W 14%

Forecast source: National Weather Service (api.weather.gov) for Allendale (41.033, -74.134). Updated through the day.

Growing snapshot for Allendale

Last spring frost
Apr 19
First fall frost
Oct 23
Growing season
188 days
Hardiness zone
7a

More local growing data for Allendale: nearby ZIP 07401 weather · frost dates · planting calendar · New Jersey frost dates

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Climate data from the nearest NOAA station, Wanaque Raymond Dam, Nj (8.4 mi from Allendale). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.