Weather in East Setauket

14-day forecast · updated today, Thursday, October 29, at 12:29 am (EDT)

Now · clear 51 °F

Feels like: 47 °F
Low / high: 49 / 67 °F
Rain: 1%
Wind: 7 mph S

↘ 30.32 inHg · falling

Today in East Setauket: clear sky, 49 °F to 67 °F, with a 1% chance of rain and a light breeze from the south (7 mph). Tomorrow, light drizzle, 51 °F to 68 °F and a 6% chance of rain. The warmest day of the week is Friday 30, at 68 °F. Next likely rain: Wednesday 4 (25%).

Temperatures for the next 14 days

67° 49°
Today
68° 51°
Fri 30
58° 48°
Sat 31
61° 47°
Sun 1
65° 51°
Mon 2
64° 53°
Tue 3
64° 54°
Wed 4
65° 55°
Thu 5
63° 54°
Fri 6
59° 51°
Sat 7
58° 47°
Sun 8
54° 43°
Mon 9
54° 45°
Tue 10
59° 46°
Wed 11

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	High tides	Model
Today · 29	Clear sky	49 / 67 °F	1%	10 mph SSW	0.9 ft	1:59 am · 2:15 pm	HRRR + NBM
Fri 30	Light drizzle	51 / 68 °F	6%	13 mph WNW	1.5 ft	2:53 am · 3:12 pm	NBM
Sat 31	Overcast	48 / 58 °F	0%	11 mph NNW	1.0 ft	3:52 am · 4:13 pm	NBM
Sun 1	Overcast	47 / 61 °F	0%	5 mph WSW	0.5 ft	3:54 am · 4:18 pm	NBM
Mon 2	Overcast	51 / 65 °F	5%	6 mph WSW	0.6 ft	4:59 am · 5:26 pm	NBM
Tue 3	Overcast	53 / 64 °F	11%	11 mph E	1.0 ft	6:05 am · 6:32 pm	NBM
Wed 4	Mainly clear	54 / 64 °F	25% · 0.19 in	11 mph ESE	0.9 ft	7:06 am · 7:33 pm	NBM
Thu 5	Partly cloudy	55 / 65 °F	33% · 0.35 in	11 mph ESE	0.3 ft	8:00 am · 8:28 pm	NBM
Fri 6	Rain	54 / 63 °F	33% · 0.42 in	11 mph E	1.2 ft	8:49 am · 9:17 pm	NBM
Sat 7	Rain	51 / 59 °F	31% · 0.12 in	11 mph NNW	3.7 ft	9:33 am · 10:02 pm	NBM
Sun 8	Overcast	47 / 58 °F	22% · 0.08 in	11 mph NNW	2.7 ft	10:14 am · 10:44 pm	NBM + ECMWF
Mon 9	Clear sky	43 / 54 °F	21%	9 mph NNW	1.4 ft	10:53 am · 11:24 pm	ECMWF
Tue 10	Overcast	45 / 54 °F	13%	10 mph NE	1.8 ft	11:31 am	ECMWF
Wed 11	Overcast	46 / 59 °F	18%	5 mph NE	0.6 ft	12:04 am · 12:10 pm	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 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	51°	51°	49°	55°	64°	67°	59°	58°
Chance of rain	0%	0%	0%	0%	0%	1%	1%	1%
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)	7 S	7 S	6 SSW	5 SW	8 WSW	9 SW	8 SSW	10 SSW
Humidity	87%	88%	89%	92%	64%	54%	77%	88%
UV	0	0	0	1	3	2	0	0
Model	HRRR	HRRR	HRRR	HRRR	HRRR	HRRR	HRRR	NBM

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.

HighRainWind

Do the models agree? · High
High (°F)	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	61°	66°	55°	57°	62°	62°	64°
AIFS	63°	66°	55°	56°	63°	64°	66°
GFS	66°	68°	56°	60°	64°	62°	58°
ICON	65°	68°	55°	62°	66°	68°	59°
HRRR	67°	64°	—	—	—	—	—
NBM	66°	68°	58°	61°	65°	64°	64°
Confidence	high	high	high	high	high	high	medium

Do the models agree? · Rain
Rain	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	0	0.02 in	0	0	0	0	0
AIFS	0	0	0	0	0	0	0
GFS	0	0	0	0	0	0.00 in	0.09 in
ICON	0	0	0	0	0	0	0
HRRR	0	0	—	—	—	—	—
NBM	0	0	0	0	0	0	0.15 in
Confidence	high	high	high	high	high	high	medium

Do the models agree? · Wind
Wind (mph)	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	1419	1422	1119	919	1419	1420	1019
AIFS	13	15	14	9	12	14	13
GFS	1123	2028	1420	916	1217	1420	1324
ICON	820	1228	922	719	719	1126	718
HRRR	1121	1932	—	—	—	—	—
NBM	1015	1320	1115	59	611	1116	1117
Confidence	high	high	high	high	medium	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%	10%	0%	0%	7%	14%	16%
GFS (GEFS, 31 scenarios)	0%	0%	0%	3%	19%	26%	42%
NBM (NOAA)	1%	6%	0%	0%	5%	11%	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 and normal rain.

Next 6 weeks

When	TemperatureTemp.	Rain	Typical high / low
Nov 2 – Nov 8Nov 2–Nov 8	Well above +6.1 °F	A bit above +39%	—
Nov 9 – Nov 15Nov 9–Nov 15	A bit above +0.9 °F	Normal	—
Nov 16 – Nov 22Nov 16–Nov 22	A bit above +2.2 °F	Normal	53° / 45°
Nov 23 – Nov 29Nov 23–Nov 29	A bit above +2.3 °F	A bit above +30%	50° / 44°
Nov 30 – Dec 6Nov 30–Dec 6	A bit above +1.8 °F	A bit above +21%	48° / 41°

Coming months

When	TemperatureTemp.	Rain
November	A bit above +1.1 °F	A bit above +25%
December	A bit above +2.3 °F	A bit above +32%
January	Above +3.6 °F	A bit above +42%
February	Above +2.7 °F	A bit above +35%
March	Above +2.7 °F	A bit above +26%

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. The long-range sea temperature isn't usable at this spot (the model's grid cell falls on land).

East Setauket climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit East Setauket 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 East Setauket, about 3 every 10 years. The most recent: Henri, in August 2021.

39° 24°

JanJ
41° 25°

FebF
48° 32°

MarM
58° 40°

AprA
68° 50°

MayM
77° 59°

JunJ
82° 66°

JulJ
81° 65°

AugA
74° 58°

SepS
64° 47°

OctO
54° 39°

NovN
44° 30°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Water	Waves	Cyclones
JanuaryJan	39°	24°	3.41 in	8	3.6	39°	1.7 ft	–
FebruaryFeb	41°	25°	2.95 in	7	4.9	35°	1.6 ft	–
MarchMar	48°	32°	4.21 in	9	5.4	37°	1.6 ft	–
AprilApr	58°	40°	3.94 in	9	6.1	44°	1.5 ft	–
MayMay	68°	50°	3.35 in	10	6.9	54°	1.2 ft	–
JuneJun	77°	59°	3.89 in	10	7.5	65°	1.0 ft	1
JulyJul	82°	66°	3.65 in	9	7.9	72°	1.0 ft	3
AugustAug	81°	65°	3.76 in	10	7.3	74°	1.0 ft	3
SeptemberSep	74°	58°	3.50 in	8	6.0	71°	1.4 ft	2
OctoberOct	64°	47°	4.16 in	8	4.7	64°	1.7 ft	–
NovemberNov	54°	39°	3.40 in	7	3.8	55°	1.7 ft	–
DecemberDec	44°	30°	4.02 in	9	3.2	46°	1.7 ft	–

Month	Water	Waves	Cyclones
Jan	39°	1.7 ft	–
Feb	35°	1.6 ft	–
Mar	37°	1.6 ft	–
Apr	44°	1.5 ft	–
May	54°	1.2 ft	–
Jun	65°	1.0 ft	1
Jul	72°	1.0 ft	3
Aug	74°	1.0 ft	3
Sep	71°	1.4 ft	2
Oct	64°	1.7 ft	–
Nov	55°	1.7 ft	–
Dec	46°	1.7 ft	–

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

A normal year brings 44.25 in of rain on about 102 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

Now51 °Ffeels like 47 °F

Tomorrow51 / 68 °F

It's 51 °F now (feels like 47 °F). Today, 49 °F to 67 °F; tomorrow, 51 °F to 68 °F.

Chance of rain

Today 1%
Fri 30 6%
Sat 31 0%
Sun 1 0%
Mon 2 5%
Tue 3 11%
Wed 4 25% 0.19 in

Today the chance of rain reaches 1%. The next day with likely rain is Wednesday 4: 25% and 0.19 in.

No rain in the last 7 days.

Humidity and dew point

Humidity87%

Dew point47 °F

Humidity is 87% now and the dew point is 47 °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

Now9.2 migood

Clouds1%

Visibility is good now (9.2 mi). No fog expected today.

UV index

Now0

Today's peak3moderate

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

30.0030.2030.40 30.02

Falling now (−0.05 inHg in 3 hours). Over the next 48 hours: −0.06 inHg. Falling pressure: anglers say fish feed more before the change. Fast changes, either way, tend to affect fishing.

Air and pollen

Air qualityGood · 45

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.

Day	Sky	Low / high	Max wind
Wed 28	Overcast	47 / 59 °F	9 mph ENE
Tue 27	Clear sky	54 / 61 °F	10 mph NNE
Mon 26	Clear sky	48 / 63 °F	9 mph W
Sun 25	Overcast	44 / 62 °F	7 mph WNW
Sat 24	Overcast	44 / 59 °F	8 mph NNW
Fri 23	Overcast	50 / 58 °F	14 mph NNE
Thu 22	Overcast	50 / 64 °F	16 mph N

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Wed 21	Overcast	51 / 60 °F	0	17 mph NNE
Tue 20	Overcast	50 / 65 °F	0	15 mph NNE
Mon 19	Clear sky	46 / 60 °F	0	10 mph NNE
Sun 18	Clear sky	44 / 55 °F	0	15 mph NNE
Sat 17	Heavy drizzle	48 / 65 °F	0.24 in	18 mph NNW
Fri 16	Light rain	60 / 66 °F	0.44 in	16 mph SSW
Thu 15	Overcast	57 / 65 °F	0	13 mph NNE
Wed 14	Light drizzle	67 / 70 °F	0.05 in	17 mph WSW
Tue 13	Overcast	60 / 67 °F	0	16 mph S
Mon 12	Drizzle	57 / 69 °F	0.08 in	14 mph N
Sun 11	Rain	60 / 62 °F	1.44 in	23 mph E
Sat 10	Overcast	56 / 65 °F	0	9 mph ENE
Fri 9	Overcast	56 / 67 °F	0	11 mph W
Thu 8	Clear sky	63 / 71 °F	0	16 mph WSW
Wed 7	Partly cloudy	51 / 63 °F	0	16 mph SW
Tue 6	Clear sky	51 / 60 °F	0	13 mph NW
Mon 5	Overcast	58 / 68 °F	0	15 mph WNW
Sun 4	Light rain	58 / 62 °F	0.43 in	15 mph ENE
Sat 3	Overcast	62 / 68 °F	0	13 mph NE
Fri 2	Light drizzle	67 / 71 °F	0.06 in	14 mph SW
Thu 1	Overcast	65 / 69 °F	0	13 mph SW
Wed 30	Overcast	61 / 67 °F	0	8 mph W
Tue 29	Overcast	59 / 67 °F	0	7 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 East SetauketQuestions

What's the weather like today in East Setauket?

Clear sky, from 49 °F to 67 °F, with a light breeze from the south (7 mph) and a 1% chance of rain.

Will it rain tomorrow in East Setauket?

On Friday 30 the chance of rain is 6% (0.00 in): light drizzle.

How warm will it be this week?

Between a low of 47 °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 30.32 inHg and falling: −0.09 inHg over the last 24 hours.

When is the best time to visit East Setauket?

The best time to visit East Setauket 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 East Setauket in October?

In October, East Setauket normally sees highs of 64 °F and lows of 47 °F, with about 8 rainy days (4.16 in for the month) and 5 hours of sunshine a day. The sea is around 64 °F. These are 1991–2020 averages.

What are the warmest and wettest months in East Setauket?

The warmest is July, with average highs of 82 °F, and the coldest January, with lows of 24 °F. The wettest is March (4.21 in) and the driest, February.

When is hurricane season in East Setauket?

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

More about East Setauket today

Weather near East Setauket

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 14 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 12:29 am (local time).

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