Weather in Riverhead

14-day forecast · updated today, Thursday, October 29, at 3:39 am (EDT)

Now · clear 48 °F

Feels like: 44 °F
Low / high: 47 / 65 °F
Rain: 1%
Wind: 6 mph SSW

↘ 30.30 inHg · falling

Today in Riverhead: mainly clear, 47 °F to 65 °F, with a 1% chance of rain and a light breeze from the south-southwest (6 mph). Tomorrow, overcast, 47 °F to 68 °F and a 5% chance of rain. The warmest day of the week is Friday 30, at 68 °F. Next likely rain: Wednesday 4 (24%).

Measured now at the airport

Westhampton/Gabreski (KFOK), 5.1 mi away · 46 min ago

Visibility9.9 mi or more

WeatherNothing to note

Temperature41 °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

65° 47°
Today
68° 47°
Fri 30
58° 41°
Sat 31
60° 40°
Sun 1
64° 47°
Mon 2
64° 48°
Tue 3
64° 50°
Wed 4
65° 52°
Thu 5
64° 49°
Fri 6
60° 46°
Sat 7
58° 43°
Sun 8
51° 44°
Mon 9
53° 46°
Tue 10
56° 49°
Wed 11

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	High tides	Model
Today · 29	Mainly clear	47 / 65 °F	1%	11 mph SSW	2.2 ft	2:45 am · 3:00 pm	HRRR + NBM
Fri 30	Overcast	47 / 68 °F	5%	10 mph WNW	2.4 ft	3:40 am · 3:57 pm	NBM
Sat 31	Overcast	41 / 58 °F	0%	9 mph NNW	1.8 ft	4:38 am · 4:56 pm	NBM
Sun 1	Overcast	40 / 60 °F	0%	5 mph WSW	1.6 ft	4:39 am · 4:59 pm	NBM
Mon 2	Overcast	47 / 64 °F	4%	6 mph WSW	1.7 ft	5:42 am · 6:05 pm	NBM
Tue 3	Overcast	48 / 64 °F	11%	9 mph ENE	1.8 ft	6:45 am · 7:11 pm	NBM
Wed 4	Partly cloudy	50 / 64 °F	24% · 0.17 in	10 mph ESE	3.1 ft	7:44 am · 8:15 pm	NBM
Thu 5	Mainly clear	52 / 65 °F	33% · 0.47 in	10 mph ESE	4.2 ft	8:38 am · 9:12 pm	NBM
Fri 6	Rain	49 / 64 °F	33% · 0.54 in	10 mph NE	4.1 ft	9:26 am · 10:02 pm	NBM
Sat 7	Rain	46 / 60 °F	29% · 0.30 in	10 mph NNW	3.5 ft	10:09 am · 10:46 pm	NBM
Sun 8	Overcast	43 / 58 °F	24% · 0.08 in	13 mph NNW	3.1 ft	10:49 am · 11:26 pm	NBM + ECMWF
Mon 9	Clear sky	44 / 51 °F	25%	10 mph NNW	1.5 ft	11:27 am	ECMWF
Tue 10	Overcast	46 / 53 °F	14%	11 mph NE	1.7 ft	12:05 am · 12:05 pm	ECMWF
Wed 11	Light drizzle	49 / 56 °F	17% · 0.02 in	5 mph NE	0.5 ft	12:44 am · 12:45 pm	ECMWF

Each hour comes from the best model for this spot: HRRR until Thursday 29 10:00 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	Mainly clear	Clear	Clear	Clear sky	Clear sky	Clear sky	Clear	Clear
Temperature	47°	47°	48°	56°	65°	64°	58°	56°
Chance of rain	0%	0%	0%	0%	0%	0%	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)	5 SSE	6 SSW	6 SSW	4 SW	9 SW	11 SW	7 SSW	9 SSW
Humidity	82%	80%	85%	87%	59%	60%	85%	88%
UV	0	0	0	1	3	2	0	0
Model	HRRR	HRRR	HRRR	HRRR	HRRR	HRRR	HRRR	HRRR

Do the models agree?

Medium confidence

They broadly agree, but not quite on wind tomorrow: take it with some caution.

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	63°	64°	54°	57°	64°	65°	68°
AIFS	63°	67°	54°	55°	62°	64°	64°
GFS	63°	68°	54°	57°	61°	62°	59°
ICON	65°	69°	54°	58°	65°	70°	69°
HRRR	65°	64°	—	—	—	—	—
NBM	65°	68°	58°	60°	64°	64°	64°
Confidence	high	high	high	high	high	high	high

Do the models agree? · Rain
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	0	0	0	0	0.13 in
Confidence	high	high	high	high	high	high	high

Do the models agree? · Wind
Wind (mph)	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	1218	1930	1523	918	1217	1519	1421
AIFS	13	13	12	6	10	10	11
GFS	1525	2030	1726	811	1619	1418	1524
ICON	820	1127	922	513	821	410	615
HRRR	1122	1531	—	—	—	—	—
NBM	816	1019	917	510	612	916	1018
Confidence	high	medium	high	high	high	high	medium

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%	6%	0%	0%	7%	14%	14%
GFS (GEFS, 31 scenarios)	0%	3%	0%	0%	10%	19%	23%
NBM (NOAA)	1%	5%	0%	0%	4%	11%	24%
Thunderstorm (NBM)	0%	2%	0%	0%	1%	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 +4.7 °F	A bit above +33%	A bit above +0.5 °F	—
Nov 9 – Nov 15Nov 9–Nov 15	A bit above +1.3 °F	Normal	A bit above +1.1 °F	—
Nov 16 – Nov 22Nov 16–Nov 22	A bit above +2.0 °F	Normal	A bit above +1.1 °F	53° / 49°
Nov 23 – Nov 29Nov 23–Nov 29	A bit above +2.2 °F	A bit above +29%	A bit above +1.3 °F	51° / 47°
Nov 30 – Dec 6Nov 30–Dec 6	A bit above +1.8 °F	Normal	A bit above +1.1 °F	49° / 45°

Coming months

When	TemperatureTemp.	Rain	Sea
November	A bit above +1.1 °F	A bit above +24%	Normal +0.4 °F
December	A bit above +2.3 °F	A bit above +26%	A bit above +1.1 °F
January	Above +3.2 °F	A bit above +35%	A bit above +1.6 °F
February	Above +2.7 °F	A bit above +26%	Above +2.0 °F
March	A bit above +2.5 °F	A bit above +22%	Above +2.0 °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.

Riverhead climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit Riverhead 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, peaking in July. In the last 30 years (1996–2025), 10 tropical cyclones passed within 93 mi of Riverhead, about 3 every 10 years. The most recent: Henri, in August 2021.

39° 25°

JanJ
40° 25°

FebF
47° 32°

MarM
58° 40°

AprA
68° 49°

MayM
77° 59°

JunJ
82° 65°

JulJ
81° 65°

AugA
74° 58°

SepS
64° 47°

OctO
54° 38°

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°	25°	3.55 in	8	3.8	43°	2.8 ft	–
FebruaryFeb	40°	25°	3.51 in	7	5.0	39°	2.6 ft	–
MarchMar	47°	32°	4.50 in	9	5.5	40°	2.5 ft	–
AprilApr	58°	40°	3.73 in	9	6.3	44°	2.4 ft	–
MayMay	68°	49°	3.27 in	10	6.8	52°	1.9 ft	–
JuneJun	77°	59°	3.25 in	10	7.5	62°	1.6 ft	1
JulyJul	82°	65°	3.41 in	9	8.0	69°	1.5 ft	4
AugustAug	81°	65°	4.18 in	10	7.4	71°	1.6 ft	3
SeptemberSep	74°	58°	3.47 in	8	6.1	69°	2.1 ft	2
OctoberOct	64°	47°	4.17 in	8	4.8	63°	2.6 ft	–
NovemberNov	54°	38°	3.83 in	7	3.9	55°	2.7 ft	–
DecemberDec	44°	30°	4.67 in	9	3.3	49°	2.7 ft	–

Month	Water	Waves	Cyclones
Jan	43°	2.8 ft	–
Feb	39°	2.6 ft	–
Mar	40°	2.5 ft	–
Apr	44°	2.4 ft	–
May	52°	1.9 ft	–
Jun	62°	1.6 ft	1
Jul	69°	1.5 ft	4
Aug	71°	1.6 ft	3
Sep	69°	2.1 ft	2
Oct	63°	2.6 ft	–
Nov	55°	2.7 ft	–
Dec	49°	2.7 ft	–

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

A normal year brings 45.53 in of rain on about 102 days and about 2,100 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

Now48 °Ffeels like 44 °F

Tomorrow47 / 68 °F

It's 48 °F now (feels like 44 °F). Today, 47 °F to 65 °F; tomorrow, 47 °F to 68 °F.

Chance of rain

Today 1%
Fri 30 5%
Sat 31 0%
Sun 1 0%
Mon 2 4%
Tue 3 11%
Wed 4 24% 0.17 in

Today the chance of rain reaches 1%. The next day with likely rain is Wednesday 4: 24% and 0.17 in.

No rain in the last 7 days.

Humidity and dew point

Humidity81%

Dew point42 °F

Humidity is 81% now and the dew point is 42 °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

Now9.3 migood

Clouds0%

Visibility is good now (9.3 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 30.00

Falling now (−0.03 inHg in 3 hours). It barely changes over the next 48 hours. Falling pressure: anglers say fish feed more before the change. Fast changes, either way, tend to affect fishing.

Air and pollen

Air qualityGood · 47

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 / 57 °F	10 mph ENE
Tue 27	Partly cloudy	49 / 61 °F	15 mph N
Mon 26	Clear sky	50 / 65 °F	11 mph W
Sun 25	Clear sky	47 / 62 °F	8 mph WNW
Sat 24	Overcast	46 / 59 °F	8 mph NW
Fri 23	Overcast	50 / 58 °F	17 mph NNE
Thu 22	Overcast	51 / 63 °F	18 mph N

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Wed 21	Overcast	52 / 60 °F	0	20 mph NNE
Tue 20	Overcast	51 / 65 °F	0	15 mph NNE
Mon 19	Clear sky	48 / 59 °F	0	12 mph ENE
Sun 18	Clear sky	44 / 54 °F	0	17 mph NNE
Sat 17	Drizzle	49 / 64 °F	0.19 in	21 mph NNW
Fri 16	Light rain	56 / 68 °F	0.41 in	15 mph SSW
Thu 15	Overcast	55 / 64 °F	0	17 mph N
Wed 14	Light drizzle	65 / 73 °F	0.01 in	15 mph WSW
Tue 13	Overcast	60 / 68 °F	0	15 mph S
Mon 12	Drizzle	57 / 67 °F	0.11 in	17 mph N
Sun 11	Rain	55 / 62 °F	1.45 in	24 mph E
Sat 10	Overcast	57 / 64 °F	0	8 mph NNW
Fri 9	Overcast	56 / 68 °F	0	15 mph W
Thu 8	Mainly clear	60 / 71 °F	0	14 mph WSW
Wed 7	Partly cloudy	49 / 64 °F	0	12 mph SSW
Tue 6	Clear sky	52 / 60 °F	0	18 mph NW
Mon 5	Overcast	59 / 68 °F	0	19 mph WNW
Sun 4	Drizzle	58 / 62 °F	0.19 in	16 mph ENE
Sat 3	Overcast	60 / 68 °F	0	14 mph NE
Fri 2	Light drizzle	68 / 77 °F	0.02 in	14 mph SW
Thu 1	Overcast	62 / 73 °F	0	12 mph SSW
Wed 30	Overcast	62 / 68 °F	0	8 mph WNW
Tue 29	Overcast	60 / 68 °F	0	11 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 RiverheadQuestions

What's the weather like today in Riverhead?

Mainly clear, from 47 °F to 65 °F, with a light breeze from the south-southwest (6 mph) and a 1% chance of rain.

Will it rain tomorrow in Riverhead?

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

How warm will it be this week?

Between a low of 40 °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 30.30 inHg and falling: −0.14 inHg over the last 24 hours.

When is the best time to visit Riverhead?

The best time to visit Riverhead 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 Riverhead in October?

In October, Riverhead normally sees highs of 64 °F and lows of 47 °F, with about 8 rainy days (4.17 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 Riverhead?

The warmest is July, with average highs of 82 °F, and the coldest January, with lows of 25 °F. The wettest is December (4.67 in) and the driest, June.

When is hurricane season in Riverhead?

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

More about Riverhead today

Weather near Riverhead

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 7.3 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 3:39 am (local time).

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