Weather in Green Harbor
14-day forecast · updated today, Thursday, October 29, at 10:35 am (EDT)- Feels like
- 52 °F
- Low / high
- 42 / 64 °F
- Rain
- 0%
- Wind
- 11 mph SW
Today in Green Harbor: clear sky, 42 °F to 64 °F, with a 0% chance of rain and a gentle breeze from the southwest (11 mph). Tomorrow, mainly clear, 49 °F to 68 °F and a 15% chance of rain. The warmest day of the week is Friday 30, at 68 °F. Next likely rain: Thursday 5 (26%).
Temperatures for the next 14 days
- Today
- Fri 30
- Sat 31
- Sun 1
- Mon 2
- Tue 3
- Wed 4
- Thu 5
- Fri 6
- Sat 7
- Sun 8
- Mon 9
- Tue 10
- Wed 11
Day by day
| Day | Sky | Low / high | Rain | Max wind | Max wave | High tides | Model |
|---|---|---|---|---|---|---|---|
| Today · 29 | 42 / 64 °F | 0% | 13 mph SW | 1.6 ft | 1:55 am · 2:07 pm | HRRR | |
| Fri 30 | 49 / 68 °F | 15% · 0.01 in | 12 mph W | 2.4 ft | 2:47 am · 3:02 pm | HRRR + NBM | |
| Sat 31 | 40 / 52 °F | 0% | 15 mph NNW | 3.1 ft | 3:44 am · 4:01 pm | NBM | |
| Sun 1 | 36 / 57 °F | 1% | 6 mph WSW | 1.6 ft | 3:45 am · 4:05 pm | NBM | |
| Mon 2 | 42 / 64 °F | 3% | 9 mph WSW | 1.2 ft | 4:50 am · 5:12 pm | NBM | |
| Tue 3 | 49 / 62 °F | 9% | 9 mph ENE | 1.9 ft | 5:56 am · 6:20 pm | NBM | |
| Wed 4 | 52 / 64 °F | 12% | 11 mph SE | 2.2 ft | 7:00 am · 7:26 pm | NBM | |
| Thu 5 | 54 / 64 °F | 26% · 0.08 in | 12 mph SSE | 2.2 ft | 7:58 am · 8:26 pm | NBM | |
| Fri 6 | 52 / 62 °F | 38% · 0.91 in | 14 mph SSE | 4.4 ft | 8:50 am · 9:21 pm | NBM | |
| Sat 7 | 47 / 57 °F | 30% · 0.08 in | 12 mph SSW | 5.1 ft | 9:37 am · 10:10 pm | NBM | |
| Sun 8 | 44 / 55 °F | 16% · 0.09 in | 12 mph NW | 2.4 ft | 10:21 am · 10:55 pm | NBM | |
| Mon 9 | 44 / 60 °F | 16% · 0.01 in | 12 mph W | 1.7 ft | 11:00 am · 11:35 pm | NBM + ECMWF | |
| Tue 10 | 46 / 62 °F | 16% · 0.18 in | 8 mph SW | 1.3 ft | 11:38 am | ECMWF | |
| Wed 11 | 50 / 56 °F | 13% · 0.08 in | 10 mph NNE | 2.4 ft | 12:13 am · 12:15 pm | ECMWF |
Each hour comes from the best model for this spot: HRRR until Friday 30 5:00 am; then NBM until Monday 9 2:00 am; then ECMWF until Thursday 12 10:00 pm; then GFS.
Each day comes from the best model covering this spot: regional ones first (HRRR and NBM in the U.S., AROME, ICON-EU), then ECMWF; day 16, NOAA GFS. Waves: Météo-France up to day 10, then ECMWF WAM, coarser and further offshore. High tides: our own tide calculation.
Today, every 3 hours
| Time | 12:00 am | 3:00 am | 6:00 am | 9:00 am | 12:00 pm | 3:00 pm | 6:00 pm | 9:00 pm |
|---|---|---|---|---|---|---|---|---|
| Sky | Clear | Clear | Clear | Clear sky | Clear sky | Clear sky | Clear | Clear |
| Temperature | 43° | 43° | 42° | 51° | 62° | 64° | 57° | 55° |
| Chance of rain | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% |
| Rain | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.00 in |
| Wind (mph) | 4 SW | 5 SW | 4 SW | 9 SW | 12 SW | 12 SW | 9 SSW | 12 SW |
| Humidity | 87% | 94% | 86% | 79% | 62% | 60% | 77% | 80% |
| UV | 0 | 0 | 0 | 1 | 3 | 1 | 0 | 0 |
| Model | HRRR | HRRR | HRRR | HRRR | HRRR | HRRR | HRRR | HRRR |
Do the models agree?
High confidenceThe models agree for the next few days: the forecast is fairly solid.
What 6 forecast models say for the next few days. The closer they are, the more reliable the forecast.
| High (°F) | Today | Fri 30 | Sat 31 | Sun 1 | Mon 2 | Tue 3 | Wed 4 |
|---|---|---|---|---|---|---|---|
| ECMWF | 64° | 68° | 51° | 55° | 66° | 65° | 55° |
| AIFS | 63° | 67° | 52° | 54° | 63° | 66° | 67° |
| GFS | 67° | 69° | 52° | 58° | 66° | 60° | 55° |
| ICON | 65° | 69° | 51° | 55° | 66° | 66° | 66° |
| HRRR | 64° | 65° | — | — | — | — | — |
| NBM | 66° | 68° | 52° | 57° | 64° | 62° | 64° |
| Confidence | high | high | high | high | high | high | low |
| Rain | Today | Fri 30 | Sat 31 | Sun 1 | Mon 2 | Tue 3 | Wed 4 |
|---|---|---|---|---|---|---|---|
| ECMWF | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| AIFS | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| GFS | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| ICON | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| HRRR | 0 | 0 | — | — | — | — | — |
| NBM | 0 | 0.01 in | 0 | 0 | 0 | 0 | 0 |
| Confidence | high | high | high | high | high | high | high |
| Wind (mph) | Today | Fri 30 | Sat 31 | Sun 1 | Mon 2 | Tue 3 | Wed 4 |
|---|---|---|---|---|---|---|---|
| ECMWF | 1330 | 1225 | 1126 | 723 | 1123 | 723 | 821 |
| AIFS | 14 | 14 | 14 | 8 | 12 | 12 | 12 |
| GFS | 1231 | 1531 | 1428 | 819 | 1328 | 1218 | 1016 |
| ICON | 1124 | 1025 | 1127 | 614 | 718 | 514 | 921 |
| HRRR | 1324 | 1431 | — | — | — | — | — |
| NBM | 1321 | 1221 | 1523 | 611 | 914 | 915 | 1117 |
| Confidence | high | high | high | high | high | high | high |
Chance of rain from the ensemble models
| Model | Today | Fri 30 | Sat 31 | Sun 1 | Mon 2 | Tue 3 | Wed 4 |
|---|---|---|---|---|---|---|---|
| ECMWF (51 scenarios) | 0% | 4% | 0% | 0% | 2% | 15% | 19% |
| GFS (GEFS, 31 scenarios) | 0% | 3% | 0% | 0% | 10% | 14% | 11% |
| NBM (NOAA) | 0% | 15% | 0% | 1% | 3% | 9% | 12% |
| Thunderstorm (NBM) | 0% | 0% | 0% | 0% | 0% | 1% | 1% |
Each model's day runs midnight to midnight local time; models that reach fewer days are left blank. Rain: daily total. Wind: the day's highest average wind and, in small type, the strongest gust. Highlighted: values that stand out from the rest. The chance of rain comes from many runs of the same model with slightly different starting data.
Outlook
How the coming weeks and months compare with what is normal for the time of year. It is a trend, not a day-by-day forecast.
Next few weeks, compared with normal: a bit warmer, normal rain and a slightly warmer sea.
Next 6 weeks
| When | TemperatureTemp. | Rain | Sea | Typical high / low |
|---|---|---|---|---|
| Nov 2 – Nov 8Nov 2–Nov 8 | Above +4.0 °F | Normal | A bit above +0.7 °F | — |
| Nov 9 – Nov 15Nov 9–Nov 15 | A bit above +1.3 °F | Normal | A bit above +1.3 °F | — |
| Nov 16 – Nov 22Nov 16–Nov 22 | A bit above +2.0 °F | Normal | A bit above +1.3 °F | 51° / 47° |
| Nov 23 – Nov 29Nov 23–Nov 29 | A bit above +2.3 °F | A bit above +29% | A bit above +1.3 °F | 49° / 46° |
| Nov 30 – Dec 6Nov 30–Dec 6 | A bit above +2.0 °F | A bit above +23% | A bit above +1.1 °F | 47° / 43° |
Coming months
| When | TemperatureTemp. | Rain | Sea |
|---|---|---|---|
| November | A bit above +1.4 °F | Normal | A bit above +1.3 °F |
| December | Above +2.9 °F | Normal | Above +2.0 °F |
| January | Above +4.0 °F | A bit above +33% | Above +2.2 °F |
| February | Above +3.2 °F | A bit above +24% | Above +2.0 °F |
| March | Above +2.9 °F | Normal | Above +2.3 °F |
Weeks: ECMWF 46-day (average of its scenarios), against the normal of the last 20 years for those dates. Months: ECMWF SEAS5. Rain: total against normal. The further ahead, the closer it gets to normal and the less detail it can give.
Green Harbor climate by monthClimate by month
Normal weather for each month (1991–2020 averages)The best time to visit Green Harbor is from June to September: highs of 73 °F to 82 °F, about 9 rainy days a month and 7 hours of sunshine a day.
Hurricane season: from July to August, peaking in July. In the last 30 years (1996–2025), 6 tropical cyclones passed within 93 mi of Green Harbor, about 2 every 10 years. The most recent: Henri, in August 2021.
- JanJ
- FebF
- MarM
- AprA
- MayM
- JunJ
- JulJ
- AugA
- SepS
- OctO
- NovN
- DecD
- Highs and lows
- Monthly rainfall
- Best time
| Month | High | Low | Rain | Rainy daysDays | Sun (h/day) | Water | Waves | Cyclones |
|---|---|---|---|---|---|---|---|---|
| JanuaryJan | 38° | 22° | 4.19 in | 9 | 3.5 | 41° | 3.6 ft | – |
| FebruaryFeb | 40° | 23° | 3.57 in | 8 | 5.1 | 38° | 3.4 ft | – |
| MarchMar | 46° | 29° | 5.08 in | 9 | 5.2 | 38° | 3.5 ft | – |
| AprilApr | 56° | 38° | 4.33 in | 9 | 6.1 | 42° | 2.9 ft | – |
| MayMay | 67° | 48° | 3.41 in | 9 | 6.5 | 50° | 2.2 ft | – |
| JuneJun | 76° | 57° | 3.90 in | 9 | 7.1 | 58° | 1.9 ft | – |
| JulyJul | 82° | 64° | 3.19 in | 9 | 7.8 | 65° | 1.6 ft | 3 |
| AugustAug | 80° | 63° | 3.69 in | 9 | 7.3 | 66° | 1.7 ft | 2 |
| SeptemberSep | 73° | 55° | 4.30 in | 8 | 6.0 | 63° | 2.3 ft | 1 |
| OctoberOct | 62° | 44° | 4.81 in | 9 | 4.6 | 57° | 3.0 ft | – |
| NovemberNov | 52° | 36° | 4.56 in | 8 | 3.4 | 50° | 3.3 ft | – |
| DecemberDec | 43° | 28° | 4.72 in | 10 | 3.0 | 46° | 3.3 ft | – |
| Month | Water | Waves | Cyclones |
|---|---|---|---|
| Jan | 41° | 3.6 ft | – |
| Feb | 38° | 3.4 ft | – |
| Mar | 38° | 3.5 ft | – |
| Apr | 42° | 2.9 ft | – |
| May | 50° | 2.2 ft | – |
| Jun | 58° | 1.9 ft | – |
| Jul | 65° | 1.6 ft | 3 |
| Aug | 66° | 1.7 ft | 2 |
| Sep | 63° | 2.3 ft | 1 |
| Oct | 57° | 3.0 ft | – |
| Nov | 50° | 3.3 ft | – |
| Dec | 46° | 3.3 ft | – |
Days: rainy days in the month. Sun: hours a day.
A normal year brings 49.74 in of rain on about 105 days and about 2,000 hours of sunshine.
Cyclones: how many tropical cyclones (tropical storms, hurricanes and typhoons) passed within 93 mi in each month from 1996 to 2025, according to IBTrACS (NOAA).
1991–2020 averages. Highs, lows and rainfall: TerraClimate; rainy days (0.04 in or more): NASA POWER (MERRA-2); sunshine hours: estimated from solar radiation; water: NOAA OISST; waves (average height): ERA5, 2011–2020. Normals are not a forecast: any given year can turn out very different. Sources and licenses
Temperature
It's 57 °F now (feels like 52 °F). Today, 42 °F to 64 °F; tomorrow, 49 °F to 68 °F.
Chance of rain
Today the chance of rain reaches 0%. The next day with likely rain is Thursday 5: 26% and 0.08 in.
No rain in the last 7 days.
Humidity and dew point
Humidity is 72% now and the dew point is 48 °F.
The dew point is the temperature at which the air becomes saturated: the higher it is, the heavier the air feels.
Visibility and fog
Visibility is good now (14 mi). No fog expected today.
UV index
Fri 30: 3 · Sat 31: 3 · Sun 1: 3
| Index | Level | What to do |
|---|---|---|
| 0–2 | low | No special protection needed. |
| 3–5 | moderate | Hat, sunglasses and sunscreen around midday. |
| 6–7 | high | Sunscreen, hat and shade between 12 and 4 pm. |
| 8–10 | very high | Avoid the midday sun; reflection off the water adds to it. |
| 11+ | extreme | Avoid the sun between 11 am and 5 pm; protect yourself even if it is cloudy. |
Reflection off water and sand adds radiation: protect yourself more on a boat or at the beach.
Barometric pressure
- ↗ Rising Anglers say fish bite less for a while
- → Steady Anglers expect normal activity
- ↘ Falling · now Anglers say fish feed more before the change
Falling now (−0.03 inHg in 3 hours). Over the next 48 hours: +0.13 inHg. Falling pressure: anglers say fish feed more before the change. Fast changes, either way, tend to affect fishing.
Air and pollen
Previous days
The weather over the last 30 days, as the models analyzed it. Tap a day to see it hour by hour.
| Day | Sky | Low / high | Rain | Max wind |
|---|---|---|---|---|
| Wed 28 | Overcast | 35 / 58 °F | 0 | 7 mph W |
| Tue 27 | Mainly clear | 40 / 57 °F | 0 | 11 mph N |
| Mon 26 | Mainly clear | 40 / 68 °F | 0 | 9 mph WSW |
| Sun 25 | Mainly clear | 34 / 65 °F | 0 | 8 mph SW |
| Sat 24 | Clear sky | 33 / 58 °F | 0 | 5 mph NW |
| Fri 23 | Clear sky | 41 / 54 °F | 0 | 15 mph N |
| Thu 22 | Overcast | 51 / 58 °F | 0 | 17 mph N |
Show all 30 days
| Day | Sky | Low / high | Rain | Max wind |
|---|---|---|---|---|
| Wed 21 | Overcast | 51 / 55 °F | 0 | 18 mph NNE |
| Tue 20 | Overcast | 47 / 59 °F | 0 | 16 mph NNE |
| Mon 19 | Partly cloudy | 38 / 58 °F | 0 | 9 mph NE |
| Sun 18 | Clear sky | 37 / 54 °F | 0 | 9 mph N |
| Sat 17 | Drizzle | 42 / 62 °F | 0.22 in | 13 mph NNW |
| Fri 16 | Rain | 45 / 68 °F | 0.61 in | 15 mph SSW |
| Thu 15 | Mainly clear | 46 / 61 °F | 0 | 14 mph N |
| Wed 14 | Overcast | 60 / 79 °F | 0 | 11 mph W |
| Tue 13 | Light rain | 56 / 62 °F | 0.27 in | 10 mph ESE |
| Mon 12 | Heavy drizzle | 54 / 69 °F | 0.17 in | 15 mph N |
| Sun 11 | Rain | 44 / 60 °F | 0.91 in | 12 mph ESE |
| Sat 10 | Overcast | 48 / 63 °F | 0 | 8 mph NW |
| Fri 9 | Partly cloudy | 51 / 67 °F | 0 | 15 mph W |
| Thu 8 | Light drizzle | 56 / 72 °F | 0.01 in | 13 mph WSW |
| Wed 7 | Mainly clear | 42 / 64 °F | 0 | 11 mph SW |
| Tue 6 | Clear sky | 47 / 62 °F | 0 | 9 mph W |
| Mon 5 | Overcast | 53 / 70 °F | 0 | 15 mph WNW |
| Sun 4 | Light drizzle | 53 / 64 °F | 0.04 in | 10 mph ENE |
| Sat 3 | Overcast | 54 / 65 °F | 0 | 9 mph NE |
| Fri 2 | Overcast | 65 / 83 °F | 0 | 12 mph SW |
| Thu 1 | Overcast | 58 / 75 °F | 0 | 12 mph SW |
| Wed 30 | Light drizzle | 59 / 67 °F | 0.02 in | 7 mph S |
| Tue 29 | Overcast | 56 / 65 °F | 0 | 9 mph NW |
These are the models at the start of each day (ECMWF and GFS; waves from Météo-France), not readings from a weather station: there can be differences at specific spots.
Questions about the weather in Green HarborQuestions
What's the weather like today in Green Harbor?
Clear sky, from 42 °F to 64 °F, with a gentle breeze from the southwest (11 mph) and a 0% chance of rain.
Will it rain tomorrow in Green Harbor?
On Friday 30 the chance of rain is 15% (0.01 in): mainly clear.
How warm will it be this week?
Between a low of 36 °F and a high of 68 °F; the warmest day, Friday 30.
What's the UV index today?
It reaches 3 (moderate). Hat, sunglasses and sunscreen around midday.
Is the pressure rising or falling?
It's 30.23 inHg and falling: −0.27 inHg over the last 24 hours.
When is the best time to visit Green Harbor?
The best time to visit Green Harbor is from June to September: highs of 73 °F to 82 °F, about 9 rainy days a month and 7 hours of sunshine a day.
What is the weather like in Green Harbor in October?
In October, Green Harbor normally sees highs of 62 °F and lows of 44 °F, with about 9 rainy days (4.81 in for the month) and 5 hours of sunshine a day. The sea is around 57 °F. These are 1991–2020 averages.
What are the warmest and wettest months in Green Harbor?
The warmest is July, with average highs of 82 °F, and the coldest January, with lows of 22 °F. The wettest is March (5.08 in) and the driest, July.
When is hurricane season in Green Harbor?
Hurricane season: from July to August, peaking in July. In the last 30 years (1996–2025), 6 tropical cyclones passed within 93 mi of Green Harbor, about 2 every 10 years. The most recent: Henri, in August 2021.
More about Green Harbor today
Weather near Green Harbor
- Scituate 56 °F · clear sky · 9.0 mi
- Hingham 57 °F · clear sky · 17 mi
- Wareham Center 60 °F · clear sky · 22 mi
- Sagamore 60 °F · clear sky · 22 mi
- Provincetown 59 °F · clear sky · 24 mi
- Taunton 58 °F · clear sky · 26 mi
Only places with a different forecast: spots a few miles apart share the same model cell and wouldn't add anything.
Learn more
Weather: Open-Meteo, CC BY 4.0, with the best model for each spot and lead time (NOAA HRRR and NBM in the U.S., Météo-France AROME, DWD ICON-EU, ECMWF IFS and NOAA GFS); ECMWF grid point 7.5 mi away. The comparison also uses ICON (DWD), AIFS (ECMWF) and ARPEGE (Météo-France). Outlook: ECMWF 46-day and SEAS5. Chance of rain from ensemble models (ECMWF, GEFS and NBM). UV, air quality and pollen: CAMS (Copernicus).
Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 10:35 am (local time).
Spotted a mistake? Tell us · Where the weather and sea data come from