Monthly outlook for Sag Harbor, NY: average high 56.2°, average low 47.9°. That is 0.6° above the climate normal for October. Precipitation is expected on 5 days (about 1.4 inches), against a normal of 5 days and 2.3 inches. The warmest day looks like 30 October (66.9°), the coolest 1 November (40.5°).
56.2°/47.9°
Average high / low
+0.6°
Above normal
5 / 5
Wet days / normal
1.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
30 October – 8 November
59.9°
56.1°
+2.1°
9 November – 18 November
49.9°
52.7°
-1.5°
19 November – 28 November
at normal
50.1°
—
October records over 66 years
78.4°2 October 2019All-time high
34.3°27 October 1976All-time low
Sat, 3154° / 43°0
54 °
Sag Harbor, Saturday, 31 October
Clear. High 54°, low 43°.
Pressure30.42 inHg
Wind11.6 mph NW
Humidity61%
Visibility6.2 mi
Dew point37°
Sun, 0156° / 40°0
56 °
Sag Harbor, Sunday, 1 November
Overcast. High 56°, low 40°.
Pressure30.53 inHg
Wind8.5 mph W
Humidity61%
Visibility6.2 mi
Dew point37°
Mon, 0261° / 53°0
61 °
Sag Harbor, Monday, 2 November
Overcast. High 61°, low 53°.
Pressure30.36 inHg
Wind12 mph W
Humidity64%
Visibility6.2 mi
Dew point47°
Tue, 0362° / 55°0
62 °
Sag Harbor, Tuesday, 3 November
Overcast. High 62°, low 55°.
Pressure30.30 inHg
Wind6.8 mph W
Humidity73%
Visibility6.2 mi
Dew point50°
Wed, 0464° / 57°0
64 °
Sag Harbor, Wednesday, 4 November
Overcast. High 64°, low 57°.
Pressure30.18 inHg
Wind15.5 mph SW
Humidity79%
Visibility—
Dew point55°
Thu, 0563° / 60°0.4
63 °
Sag Harbor, Thursday, 5 November
Rain. High 63°, low 60°.
Pressure29.94 inHg
Wind20.1 mph SE
Humidity84%
Visibility—
Dew point58°
Fri, 0663° / 58°0.34
63 °
Sag Harbor, Friday, 6 November
Rain. High 63°, low 58°.
Pressure29.44 inHg
Wind12.3 mph SE
Humidity99%
Visibility—
Dew point62°
Sat, 0758° / 48°0.04
58 °
Sag Harbor, Saturday, 7 November
Light rain. High 58°, low 48°.
Pressure29.47 inHg
Wind20.7 mph NW
Humidity88%
Visibility—
Dew point51°
Sun, 0850° / 43°0
50 °
Sag Harbor, Sunday, 8 November
Clear. High 50°, low 43°.
Pressure29.91 inHg
Wind20.8 mph N
Humidity60%
Visibility—
Dew point32°
Mon, 0950° / 42°0
50 °
Sag Harbor, Monday, 9 November
Clear. High 50°, low 42°.
Pressure30.12 inHg
Wind17 mph NW
Humidity48%
Visibility—
Dew point26°
Tue, 1048° / 43°0
48 °
Sag Harbor, Tuesday, 10 November
Overcast. High 48°, low 43°.
Pressure30.09 inHg
Wind8.2 mph N
Humidity49%
Visibility—
Dew point28°
Wed, 1149° / 45°0.57
49 °
Sag Harbor, Wednesday, 11 November
Rain. High 49°, low 45°.
Pressure29.77 inHg
Wind22.7 mph NE
Humidity91%
Visibility—
Dew point46°
Thu, 1247° / 43°0.04
47 °
Sag Harbor, Thursday, 12 November
Light rain. High 47°, low 43°.
Pressure29.74 inHg
Wind22.3 mph N
Humidity88%
Visibility—
Dew point40°
Fri, 1352° / 42°0
52 °
Sag Harbor, Friday, 13 November
Clear. High 52°, low 42°.
Pressure29.94 inHg
Wind16.8 mph N
Humidity58%
Visibility—
Dew point32°
Sat, 1453° / 44°0
53 °
Sag Harbor, Saturday, 14 November
Clear. High 53°, low 44°.
Pressure30.06 inHg
Wind10.6 mph N
Humidity55%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 1553° / 44°0.14
53 °
Sag Harbor, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high53°
Average low44°
Average precipitation0.14 in
Chance of precipitation42%
Record high65° (1993)
Record low27° (1967)
Mon, 1652° / 44°0.17
52 °
Sag Harbor, Monday, 16 November
Climate normal for this date — 60-year average.
Average high52°
Average low44°
Average precipitation0.17 in
Chance of precipitation37%
Record high64° (2006)
Record low26° (1967)
Tue, 1751° / 44°0.17
51 °
Sag Harbor, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high51°
Average low44°
Average precipitation0.17 in
Chance of precipitation32%
Record high64° (2006)
Record low32° (1980)
Wed, 1851° / 44°0.08
51 °
Sag Harbor, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high51°
Average low44°
Average precipitation0.08 in
Chance of precipitation22%
Record high62° (2021)
Record low32° (2020)
Thu, 1951° / 44°0.09
51 °
Sag Harbor, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high51°
Average low44°
Average precipitation0.09 in
Chance of precipitation23%
Record high63° (2021)
Record low29° (2008)
Fri, 2051° / 43°0.13
51 °
Sag Harbor, Friday, 20 November
Climate normal for this date — 60-year average.
Average high51°
Average low43°
Average precipitation0.13 in
Chance of precipitation37%
Record high62° (1985)
Record low28° (1986)
Sat, 2150° / 42°0.1
50 °
Sag Harbor, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high50°
Average low42°
Average precipitation0.1 in
Chance of precipitation35%
Record high60° (1988)
Record low23° (1987)
Sun, 2249° / 42°0.18
49 °
Sag Harbor, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high49°
Average low42°
Average precipitation0.18 in
Chance of precipitation42%
Record high62° (1994)
Record low20° (2018)
Mon, 2349° / 41°0.15
49 °
Sag Harbor, Monday, 23 November
Climate normal for this date — 60-year average.
Average high49°
Average low41°
Average precipitation0.15 in
Chance of precipitation27%
Record high60° (1991)
Record low21° (2018)
Tue, 2450° / 42°0.12
50 °
Sag Harbor, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high50°
Average low42°
Average precipitation0.12 in
Chance of precipitation37%
Record high61° (2014)
Record low26° (1989)
Wed, 2550° / 41°0.15
50 °
Sag Harbor, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high50°
Average low41°
Average precipitation0.15 in
Chance of precipitation35%
Record high61° (1983)
Record low26° (2013)
Thu, 2651° / 43°0.22
51 °
Sag Harbor, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high51°
Average low43°
Average precipitation0.22 in
Chance of precipitation45%
Record high63° (1979)
Record low28° (1978)
Fri, 2751° / 42°0.15
51 °
Sag Harbor, Friday, 27 November
Climate normal for this date — 60-year average.
Average high51°
Average low42°
Average precipitation0.15 in
Chance of precipitation38%
Record high62° (1986)
Record low27° (1978)
Sat, 2851° / 43°0.2
51 °
Sag Harbor, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high51°
Average low43°
Average precipitation0.2 in
Chance of precipitation35%
Record high60° (1994)
Record low25° (2002)
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 Sag Harbor, 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 Sag Harbor, 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.