TidePlanet

Weather in Greenport

14-day forecast · updated today, Thursday, October 29, at 12:01 am (EDT)
Now · clear 49 °F
Feels like
45 °F
Low / high
47 / 66 °F
Rain
1%
Wind
6 mph S
↘ 30.34 inHg · falling

Today in Greenport: mainly clear, 47 °F to 66 °F, with a 1% chance of rain and a light breeze from the south (6 mph). Tomorrow, overcast, 50 °F to 66 °F and a 5% chance of rain. The warmest day of the week is Friday 30, at 66 °F. Next likely rain: Wednesday 4 (25%).

Measured now at the airport

East Hampton (KJPX), 11 mi away · 26 min ago

Visibility9.9 mi or more
WeatherNothing to note
Temperature45 °F
WindCalm

It's what the airport's weather station measured, not a forecast: on the coast, wind and fog can be different. Airports report every 30 or 60 minutes.

Airport METAR report, via NOAA's Aviation Weather Center (aviationweather.gov). Sources and licenses

Temperatures for the next 14 days

Day by day

Day Sky Low / high Rain Max wind Max wave High tides Model
Today · 29 Mainly clear 47 / 66 °F 1% 11 mph SW 1.5 ft 1:13 am · 1:26 pm HRRR + NBM
Fri 30 Overcast 50 / 66 °F 5% 11 mph WNW 1.8 ft 2:07 am · 2:22 pm NBM
Sat 31 Partly cloudy 47 / 58 °F 0% 10 mph NNW 1.6 ft 3:09 am · 3:27 pm NBM
Sun 1 Overcast 46 / 60 °F 1% 5 mph WSW 0.9 ft 3:22 am · 3:40 pm NBM
Mon 2 Overcast 52 / 63 °F 5% 7 mph WSW 0.7 ft 4:33 am · 4:54 pm NBM
Tue 3 Overcast 54 / 62 °F 12% 7 mph ENE 1.2 ft 5:36 am · 6:02 pm NBM
Wed 4 Mainly clear 54 / 63 °F 25% · 0.09 in 10 mph ESE 1.3 ft 6:33 am · 7:05 pm NBM
Thu 5 Clear sky 55 / 64 °F 36% · 0.48 in 11 mph ESE 0.8 ft 7:25 am · 8:00 pm NBM
Fri 6 Light rain 53 / 62 °F 36% · 0.58 in 10 mph ESE 1.9 ft 8:10 am · 8:48 pm NBM
Sat 7 Rain 50 / 59 °F 33% · 0.33 in 10 mph NNW 3.1 ft 8:52 am · 9:34 pm NBM
Sun 8 Overcast 48 / 58 °F 22% · 0.08 in 9 mph NNW 2.4 ft 9:31 am · 10:18 pm NBM + ECMWF
Mon 9 Clear sky 44 / 53 °F 22% 9 mph NNW 1.4 ft 10:10 am · 11:00 pm ECMWF
Tue 10 Overcast 46 / 53 °F 13% 10 mph ENE 1.2 ft 10:48 am · 11:41 pm ECMWF
Wed 11 Overcast 52 / 60 °F 18% 9 mph SE 1.1 ft 11:27 am ECMWF

Each hour comes from the best model for this spot: HRRR until Thursday 29 7:00 pm; then NBM until Sunday 8 8:00 pm; then ECMWF until Thursday 12 10:00 am; 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 am3:00 am6:00 am9:00 am12:00 pm3:00 pm6:00 pm9:00 pm
Sky Mainly clearClearClearClear skyClear skyClear skyClearClear
Temperature 49°49°47°56°64°65°58°57°
Chance of rain 0%0%0%0%0%1%1%1%
Rain 0.00 in0.00 in0.00 in0.00 in0.00 in0.00 in0.00 in0.00 in
Wind (mph) 6 S6 SSW6 SSW5 SW8 WSW11 SW8 SW8 SW
Humidity 85%84%81%84%64%61%82%93%
UV 00013200
Model HRRRHRRRHRRRHRRRHRRRHRRRHRRRNBM

Do the models agree?

High confidence

The 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.

Do the models agree? · High
High (°F) TodayFri 30Sat 31Sun 1Mon 2Tue 3Wed 4
ECMWF 62°63°54°55°62°64°67°
AIFS 60°62°54°56°60°60°62°
GFS 64°69°54°59°64°60°57°
ICON 64°65°55°60°64°64°59°
HRRR 66°64°—————
NBM 64°66°58°60°63°62°63°
Confidence highhighhighhighhighhighmedium
Do the models agree? · Rain
Rain TodayFri 30Sat 31Sun 1Mon 2Tue 3Wed 4
ECMWF 0000000
AIFS 0000000
GFS 0000000
ICON 0000000
HRRR 00—————
NBM 0000000.07 in
Confidence highhighhighhighhighhighhigh
Do the models agree? · Wind
Wind (mph) TodayFri 30Sat 31Sun 1Mon 2Tue 3Wed 4
ECMWF 132019301422920151916191319
AIFS 16201810151717
GFS 132818311324816122115221221
ICON 1118142412201118101716271220
HRRR 11281732—————
NBM 917112010195107127151018
Confidence highhighhighhighhighhighhigh

Chance of rain from the ensemble models

Model TodayFri 30Sat 31Sun 1Mon 2Tue 3Wed 4
ECMWF (51 scenarios) 0%4%0%0%6%10%12%
GFS (GEFS, 31 scenarios) 0%0%0%0%17%29%42%
NBM (NOAA) 1%5%0%1%5%12%25%
Thunderstorm (NBM) 0%1%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: 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 +5.0 °F A bit above +43% A bit above +1.4 °F —
Nov 9 – Nov 15Nov 9–Nov 15 A bit above +1.3 °F Normal Above +1.8 °F —
Nov 16 – Nov 22Nov 16–Nov 22 A bit above +2.2 °F Normal Above +1.8 °F 52° / 46°
Nov 23 – Nov 29Nov 23–Nov 29 A bit above +2.3 °F A bit above +30% Above +1.8 °F 49° / 45°
Nov 30 – Dec 6Nov 30–Dec 6 A bit above +1.8 °F A bit above +21% A bit above +1.4 °F 47° / 42°

Coming months

When TemperatureTemp. Rain Sea
November A bit above +1.1 °F A bit above +26% A bit above +0.9 °F
December A bit above +2.5 °F A bit above +30% Above +1.8 °F
January Above +3.6 °F A bit above +38% Above +2.5 °F
February Above +2.9 °F A bit above +31% Above +2.7 °F
March Above +2.9 °F A bit above +25% Above +2.5 °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.

Greenport climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit Greenport is from June to September: highs of 74 °F to 82 °F, about 9 rainy days a month and 7 hours of sunshine a day.

Hurricane season: from July to September. In the last 30 years (1996–2025), 9 tropical cyclones passed within 93 mi of Greenport, about 3 every 10 years. The most recent: Henri, in August 2021.

Month High Low Rain Rainy daysDays Sun (h/day) Water Waves Cyclones
JanuaryJan 39° 24° 3.82 in 8 3.7 41° 2.8 ft –
FebruaryFeb 40° 25° 3.56 in 7 4.9 38° 2.6 ft –
MarchMar 46° 31° 4.66 in 8 5.5 39° 2.5 ft –
AprilApr 56° 39° 4.23 in 9 6.2 44° 2.4 ft –
MayMay 66° 48° 3.52 in 9 6.8 52° 1.9 ft –
JuneJun 76° 57° 3.91 in 9 7.5 62° 1.6 ft 1
JulyJul 82° 64° 3.42 in 9 8.0 69° 1.5 ft 3
AugustAug 81° 64° 4.01 in 9 7.4 71° 1.6 ft 3
SeptemberSep 74° 58° 3.88 in 8 6.1 69° 2.1 ft 2
OctoberOct 65° 47° 4.60 in 8 4.7 63° 2.6 ft –
NovemberNov 54° 38° 4.11 in 7 3.8 55° 2.7 ft –
DecemberDec 45° 30° 4.65 in 9 3.3 47° 2.7 ft –
Month Water Waves Cyclones
Jan 41° 2.8 ft –
Feb 38° 2.6 ft –
Mar 39° 2.5 ft –
Apr 44° 2.4 ft –
May 52° 1.9 ft –
Jun 62° 1.6 ft 1
Jul 69° 1.5 ft 3
Aug 71° 1.6 ft 3
Sep 69° 2.1 ft 2
Oct 63° 2.6 ft –
Nov 55° 2.7 ft –
Dec 47° 2.7 ft –

Days: rainy days in the month. Sun: hours a day.

A normal year brings 48.38 in of rain on about 100 days and about 2,050 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

Now49 °Ffeels like 45 °F
Tomorrow50 / 66 °F

It's 49 °F now (feels like 45 °F). Today, 47 °F to 66 °F; tomorrow, 50 °F to 66 °F.

Chance of rain

  • Today 1%
  • Fri 30 5%
  • Sat 31 0%
  • Sun 1 1%
  • Mon 2 5%
  • Tue 3 12%
  • Wed 4 25% 0.09 in

Today the chance of rain reaches 1%. The next day with likely rain is Wednesday 4: 25% and 0.09 in.

No rain in the last 7 days.

Humidity and dew point

Humidity85%
Dew point44 °F

Humidity is 85% now and the dew point is 44 °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

Now9.6 migood
Clouds9%

Visibility is good now (9.6 mi). No fog expected today.

UV index

Now0
Today's peak3moderate

Fri 30: 3 · Sat 31: 3 · Sun 1: 3

IndexLevelWhat to do
0–2lowNo special protection needed.
3–5moderateHat, sunglasses and sunscreen around midday.
6–7highSunscreen, hat and shade between 12 and 4 pm.
8–10very highAvoid the midday sun; reflection off the water adds to it.
11+extremeAvoid 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 (−0.06 inHg in 3 hours). Over the next 48 hours: −0.11 inHg. Falling pressure: anglers say fish feed more before the change. Fast changes, either way, tend to affect fishing.

Air and pollen

Air qualityGood · 33
Saharan dustNo

Previous days

The weather over the last 30 days, as the models analyzed it. Tap a day to see it hour by hour.

DaySkyLow / highRainMax wind
Wed 28 Overcast47 / 57 °F010 mph ENE
Tue 27 Mainly clear52 / 60 °F012 mph N
Mon 26 Clear sky51 / 63 °F011 mph W
Sun 25 Clear sky47 / 61 °F07 mph WNW
Sat 24 Overcast46 / 57 °F08 mph NW
Fri 23 Partly cloudy50 / 57 °F015 mph NNE
Thu 22 Overcast52 / 63 °F020 mph N
Show all 30 days
DaySkyLow / highRainMax wind
Wed 21 Overcast52 / 58 °F020 mph NNE
Tue 20 Overcast50 / 64 °F017 mph NNE
Mon 19 Mainly clear49 / 58 °F012 mph NE
Sun 18 Clear sky44 / 54 °F017 mph NNE
Sat 17 Drizzle49 / 64 °F0.26 in20 mph NNW
Fri 16 Rain57 / 67 °F0.81 in17 mph SSW
Thu 15 Partly cloudy57 / 64 °F016 mph N
Wed 14 Light drizzle65 / 73 °F0.02 in16 mph WSW
Tue 13 Mainly clear60 / 66 °F016 mph SSE
Mon 12 Drizzle57 / 67 °F0.09 in16 mph N
Sun 11 Rain56 / 63 °F1.24 in22 mph E
Sat 10 Overcast58 / 63 °F08 mph NNE
Fri 9 Overcast57 / 68 °F015 mph WNW
Thu 8 Mainly clear61 / 69 °F014 mph WSW
Wed 7 Clear sky51 / 63 °F013 mph SSW
Tue 6 Clear sky52 / 59 °F019 mph NW
Mon 5 Overcast60 / 68 °F020 mph WNW
Sun 4 Light rain58 / 62 °F0.44 in16 mph ENE
Sat 3 Light drizzle60 / 68 °F0.04 in14 mph NE
Fri 2 Drizzle67 / 73 °F0.11 in16 mph SW
Thu 1 Overcast62 / 71 °F014 mph SW
Wed 30 Overcast62 / 66 °F07 mph WNW
Tue 29 Overcast60 / 67 °F011 mph WNW

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 GreenportQuestions

What's the weather like today in Greenport?

Mainly clear, from 47 °F to 66 °F, with a light breeze from the south (6 mph) and a 1% chance of rain.

Will it rain tomorrow in Greenport?

On Friday 30 the chance of rain is 5% (0.00 in): overcast.

How warm will it be this week?

Between a low of 46 °F and a high of 66 °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 30.34 inHg and falling: −0.09 inHg over the last 24 hours.

When is the best time to visit Greenport?

The best time to visit Greenport is from June to September: highs of 74 °F to 82 °F, about 9 rainy days a month and 7 hours of sunshine a day.

What is the weather like in Greenport in October?

In October, Greenport normally sees highs of 65 °F and lows of 47 °F, with about 8 rainy days (4.60 in for the month) and 5 hours of sunshine a day. The sea is around 63 °F. These are 1991–2020 averages.

What are the warmest and wettest months in Greenport?

The warmest is July, with average highs of 82 °F, and the coldest January, with lows of 24 °F. The wettest is March (4.66 in) and the driest, July.

When is hurricane season in Greenport?

Hurricane season: from July to September. In the last 30 years (1996–2025), 9 tropical cyclones passed within 93 mi of Greenport, about 3 every 10 years. The most recent: Henri, in August 2021.

More about Greenport today

Weather near Greenport

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 9.1 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 12:01 am (local time).

Spotted a mistake? Tell us · Where the weather and sea data come from

Settings

How numbers and colors show across the site.

Height and distance Tides, waves and distances
Temperature Air and water
Wind Speed and gusts
Time Tides, sun and moon
Pressure Air pressure
Theme Automatic: same as your system

Saved only in this browser.