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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.

This Afternoon
71°F
Partly Sunny
Partly sunny, with a high near 71. Southeast wind around 3 mph.

7-day forecast for Allendale

WhenTempForecastWindPrecip
This Afternoon 71°F Partly Sunny 3 mph SE 0%
Tonight 56°F Mostly Cloudy then Slight Chance Rain Showers 3 mph SE 22%
Sunday 69°F Rain Showers then Rain 3 to 7 mph SE 94%
Sunday Night 54°F Rain then Rain Showers Likely 2 to 9 mph N 86%
Monday 67°F Partly Sunny then Slight Chance Rain Showers 7 to 10 mph N 18%
Monday Night 50°F Chance Rain Showers 7 mph NE 28%
Tuesday 63°F Chance Rain Showers 8 mph NE 28%
Tuesday Night 48°F Chance Rain Showers then Mostly Cloudy 6 to 9 mph NE 25%
Wednesday 64°F Partly Sunny 12 mph NE 9%
Wednesday Night 48°F Slight Chance Rain Showers 10 mph NE 19%
Thursday 62°F Chance Rain Showers 9 to 13 mph NE 27%
Thursday Night 48°F Chance Rain Showers 9 to 13 mph NE 34%
Friday 64°F Chance Rain Showers 10 to 15 mph N 37%
Friday Night 50°F Chance Rain Showers 9 to 14 mph N 35%

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 Sep 19, 2026.