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Old Tappan, NJ Weather & Growing Conditions

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

This Afternoon
72°F
Mostly Sunny
Mostly sunny, with a high near 72. East wind around 3 mph.

7-day forecast for Old Tappan

WhenTempForecastWindPrecip
This Afternoon 72°F Mostly Sunny 3 mph E 0%
Tonight 58°F Mostly Cloudy 5 mph SE 13%
Sunday 70°F Rain Showers then Rain 5 to 8 mph SE 92%
Sunday Night 56°F Rain then Rain Showers Likely 3 to 10 mph NW 85%
Monday 68°F Partly Sunny then Slight Chance Rain Showers 7 to 12 mph NE 18%
Monday Night 52°F Chance Rain Showers 7 mph NE 27%
Tuesday 64°F Chance Rain Showers 8 mph NE 27%
Tuesday Night 50°F Slight Chance Rain Showers then Mostly Cloudy 7 to 10 mph NE 24%
Wednesday 64°F Partly Sunny 13 mph NE 8%
Wednesday Night 50°F Slight Chance Rain Showers 12 mph NE 19%
Thursday 64°F Chance Rain Showers 13 mph NE 27%
Thursday Night 50°F Chance Rain Showers 14 mph NE 35%
Friday 65°F Chance Rain Showers 12 to 16 mph N 38%
Friday Night 52°F Chance Rain Showers 10 to 15 mph N 36%

Forecast source: National Weather Service (api.weather.gov) for Old Tappan (41.023, -73.984). Updated through the day.

Growing snapshot for Old Tappan

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

More local growing data for Old Tappan: nearby ZIP 07675 weather · frost dates · planting calendar · New Jersey frost dates

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Climate data from the nearest NOAA station, Dobbs Ferry-Ardsley, Ny (8.7 mi from Old Tappan). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.