As of 19:23 EDT

Weather in Setauket, NY

51°Current weather

Setauket, Sunday, 18 October, 19:23

Clear. Feels like 48°. High 54°, low 43°.

Pressure30.53 inHg
Wind0 mph N
Humidity60%
Visibility6.2 mi
Dew point39°

Monthly outlook for Setauket, NY: average high 59.5°, average low 51.6°. That is 0.4° above the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 26 October (64°), the coolest 18 October (42.9°).

59.5°/51.6°
Average high / low
+0.4°
Above normal
1 / 5
Wet days / normal
0.1 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
18 October – 27 October58.8°59.6°-0.5°
28 October – 6 November60.6°56.7°+2.2°
7 November – 16 Novemberat normal52.6°—

October records over 66 years

89.4°2 October 2019All-time high
32.7°27 October 1976All-time low

Climate normals and records are computed from the nearest reference point — Stony Brook University (3 mi).

Mon, 1962° / 50°0Clear
62 °Clear

Setauket, Monday, 19 October

Clear. High 62°, low 50°.

Pressure30.39 inHg
Wind11.4 mph NE
Humidity60%
Visibility6.2 mi
Dew point42°
Tue, 2064° / 55°0Clear
64 °Clear

Setauket, Tuesday, 20 October

Clear. High 64°, low 55°.

Pressure30.24 inHg
Wind17.3 mph NE
Humidity62%
Visibility6.2 mi
Dew point47°
Wed, 2158° / 50°0Partly cloudy
58 °Partly cloudy

Setauket, Wednesday, 21 October

Partly cloudy. High 58°, low 50°.

Pressure30.27 inHg
Wind16.6 mph NE
Humidity70%
Visibility6.2 mi
Dew point42°
Thu, 2262° / 50°0Clear
62 °Clear

Setauket, Thursday, 22 October

Clear. High 62°, low 50°.

Pressure30.03 inHg
Wind10.4 mph NW
Humidity62%
Visibility6.2 mi
Dew point43°
Fri, 2354° / 47°0Clear
54 °Clear

Setauket, Friday, 23 October

Clear. High 54°, low 47°.

Pressure30.33 inHg
Wind18.1 mph N
Humidity62%
Visibility—
Dew point36°
Sat, 2454° / 47°0Partly cloudy
54 °Partly cloudy

Setauket, Saturday, 24 October

Partly cloudy. High 54°, low 47°.

Pressure30.65 inHg
Wind15.5 mph N
Humidity62%
Visibility—
Dew point37°
Sun, 2559° / 50°0Clear
59 °Clear

Setauket, Sunday, 25 October

Clear. High 59°, low 50°.

Pressure30.56 inHg
Wind10.8 mph SW
Humidity63%
Visibility—
Dew point41°
Mon, 2664° / 56°0Clear
64 °Clear

Setauket, Monday, 26 October

Clear. High 64°, low 56°.

Pressure30.27 inHg
Wind12.3 mph W
Humidity61%
Visibility—
Dew point44°
Tue, 2758° / 52°0Overcast
58 °Overcast

Setauket, Tuesday, 27 October

Overcast. High 58°, low 52°.

Pressure30.30 inHg
Wind16.6 mph N
Humidity48%
Visibility—
Dew point34°
Wed, 2855° / 47°0Clear
55 °Clear

Setauket, Wednesday, 28 October

Clear. High 55°, low 47°.

Pressure30.39 inHg
Wind8.8 mph NE
Humidity49%
Visibility—
Dew point30°
Thu, 2958° / 51°0Mostly clear
58 °Mostly clear

Setauket, Thursday, 29 October

Mostly clear. High 58°, low 51°.

Pressure30.33 inHg
Wind8.1 mph NW
Humidity40%
Visibility—
Dew point30°
Fri, 3063° / 56°0Overcast
63 °Overcast

Setauket, Friday, 30 October

Overcast. High 63°, low 56°.

Pressure30.27 inHg
Wind21.2 mph SW
Humidity66%
Visibility—
Dew point49°
Sat, 3164° / 61°0.06Light rain
64 °Light rain

Setauket, Saturday, 31 October

Light rain. High 64°, low 61°.

Pressure30.09 inHg
Wind18.9 mph SW
Humidity85%
Visibility—
Dew point57°
Sun, 0161° / 57°0Clear
61 °Clear

Setauket, Sunday, 1 November

Clear. High 61°, low 57°.

Pressure30.30 inHg
Wind10.4 mph E
Humidity54%
Visibility—
Dew point42°
Mon, 0263° / 54°0Overcast
63 °Overcast

Setauket, Monday, 2 November

Overcast. High 63°, low 54°.

Pressure30.24 inHg
Wind12.2 mph S
Humidity77%
Visibility—
Dew point51°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0357° / 47°0.12Climate normal
57 °Climate normal

Setauket, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high57°
Average low47°
Average precipitation0.12 in
Chance of precipitation30%
Record high71° (2017)
Record low37° (1996)
Wed, 0456° / 46°0.05Climate normal
56 °Climate normal

Setauket, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high56°
Average low46°
Average precipitation0.05 in
Chance of precipitation27%
Record high70° (2022)
Record low36° (2013)
Thu, 0556° / 46°0.15Climate normal
56 °Climate normal

Setauket, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high56°
Average low46°
Average precipitation0.15 in
Chance of precipitation28%
Record high73° (2022)
Record low37° (1965)
Fri, 0655° / 46°0.11Climate normal
55 °Climate normal

Setauket, Friday, 6 November

Climate normal for this date — 60-year average.

Average high55°
Average low46°
Average precipitation0.11 in
Chance of precipitation30%
Record high75° (2024)
Record low35° (1962)
Sat, 0755° / 45°0.1Climate normal
55 °Climate normal

Setauket, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high55°
Average low45°
Average precipitation0.1 in
Chance of precipitation25%
Record high75° (2022)
Record low34° (2025)
Sun, 0854° / 44°0.17Climate normal
54 °Climate normal

Setauket, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high54°
Average low44°
Average precipitation0.17 in
Chance of precipitation30%
Record high72° (2020)
Record low32° (2019)
Mon, 0954° / 44°0.1Climate normal
54 °Climate normal

Setauket, Monday, 9 November

Climate normal for this date — 60-year average.

Average high54°
Average low44°
Average precipitation0.1 in
Chance of precipitation25%
Record high72° (2020)
Record low28° (2019)
Tue, 1055° / 44°0.17Climate normal
55 °Climate normal

Setauket, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high55°
Average low44°
Average precipitation0.17 in
Chance of precipitation42%
Record high69° (2020)
Record low28° (2017)
Wed, 1153° / 44°0.15Climate normal
53 °Climate normal

Setauket, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high53°
Average low44°
Average precipitation0.15 in
Chance of precipitation37%
Record high69° (2024)
Record low26° (2017)
Thu, 1252° / 42°0.16Climate normal
52 °Climate normal

Setauket, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high52°
Average low42°
Average precipitation0.16 in
Chance of precipitation38%
Record high69° (2022)
Record low30° (2019)
Fri, 1351° / 41°0.22Climate normal
51 °Climate normal

Setauket, Friday, 13 November

Climate normal for this date — 60-year average.

Average high51°
Average low41°
Average precipitation0.22 in
Chance of precipitation40%
Record high66° (1964)
Record low24° (2019)
Sat, 1451° / 41°0.11Climate normal
51 °Climate normal

Setauket, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high51°
Average low41°
Average precipitation0.11 in
Chance of precipitation22%
Record high64° (1989)
Record low26° (2019)
Sun, 1552° / 41°0.12Climate normal
52 °Climate normal

Setauket, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high52°
Average low41°
Average precipitation0.12 in
Chance of precipitation42%
Record high71° (1993)
Record low25° (1967)
Mon, 1651° / 41°0.14Climate normal
51 °Climate normal

Setauket, Monday, 16 November

Climate normal for this date — 60-year average.

Average high51°
Average low41°
Average precipitation0.14 in
Chance of precipitation38%
Record high65° (2006)
Record low24° (1967)

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Setauket, NY are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Setauket, NY since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.