Green Harbor, MA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Green Harbor, a community in Plymouth County, Massachusetts.
Today
78°F
Sunny
Sunny, with a high near 78. South wind 3 to 8 mph.
7-day forecast for Green Harbor
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 78°F | Sunny | 3 to 8 mph S | 0% |
| Tonight | 64°F | Partly Cloudy | 3 to 8 mph SW | 7% |
| Wednesday | 78°F | Mostly Sunny | 3 to 10 mph SW | 8% |
| Wednesday Night | 68°F | Partly Cloudy | 6 to 9 mph SW | 6% |
| Thursday | 81°F | Mostly Sunny | 6 to 13 mph SW | 10% |
| Thursday Night | 71°F | Partly Cloudy | 7 to 13 mph SW | 10% |
| Friday | 82°F | Mostly Sunny | 7 to 12 mph SW | 14% |
| Friday Night | 70°F | Slight Chance Rain Showers then Partly Cloudy | 6 to 12 mph SW | 19% |
| Saturday | 80°F | Mostly Sunny then Chance Rain Showers | 7 mph SW | 31% |
| Saturday Night | 70°F | Chance Rain Showers | 7 mph SW | 42% |
| Sunday | 81°F | Mostly Sunny | 5 to 9 mph SW | 11% |
| Sunday Night | 70°F | Partly Cloudy | 9 mph SW | 13% |
| Monday | 81°F | Sunny | 7 to 12 mph SW | 10% |
| Monday Night | 69°F | Partly Cloudy | 12 mph SW | 14% |
Forecast source: National Weather Service (api.weather.gov) for Green Harbor (42.066, -70.649). Updated through the day.
Growing snapshot for Green Harbor
Last spring frost
Apr 15
First fall frost
Nov 1
Growing season
198 days
Hardiness zone
7a
More local growing data for Green Harbor: nearby ZIP 02332 weather · frost dates · planting calendar · Massachusetts frost dates
Nearby towns & communities
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Hull
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Climate data from the nearest NOAA station, Plymouth-Kingston, Ma (4.3 mi from Green Harbor). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.