Monthly outlook for Harbor Isle, NY: average high 57.2°, average low 48.8°. That is 1.5° above the climate normal for November. Precipitation is expected on 3 days (about 4.6 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 3 November (67.6°), the coolest 17 November (39.9°).
57.2°/48.8°
Average high / low
+1.5°
Above normal
3 / 5
Wet days / normal
4.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
2 November – 11 November
60.8°
56.2°
+2.6°
12 November – 21 November
51.3°
51.5°
-0.1°
22 November – 1 December
at normal
49.2°
—
November records over 66 years
78.4°1 November 2024All-time high
16.7°23 November 2018All-time low
Tue, 0368° / 44°0
68 °
Harbor Isle, Tuesday, 3 November
Overcast. High 68°, low 44°.
Pressure30.30 inHg
Wind5.4 mph SW
Humidity56%
Visibility6.2 mi
Dew point46°
Wed, 0465° / 48°0
65 °
Harbor Isle, Wednesday, 4 November
Clear. High 65°, low 48°.
Pressure30.18 inHg
Wind4.3 mph S
Humidity68%
Visibility6.2 mi
Dew point54°
Thu, 0565° / 61°0.02
65 °
Harbor Isle, Thursday, 5 November
Light rain. High 65°, low 61°.
Pressure29.97 inHg
Wind8.9 mph S
Humidity84%
Visibility6.2 mi
Dew point60°
Fri, 0664° / 62°3.02
64 °
Harbor Isle, Friday, 6 November
Heavy rain. High 64°, low 62°.
Pressure29.88 inHg
Wind10.2 mph S
Humidity96%
Visibility1.3 mi
Dew point62°
Sat, 0763° / 60°0.24
63 °
Harbor Isle, Saturday, 7 November
Light rain. High 63°, low 60°.
Pressure29.80 inHg
Wind7.6 mph N
Humidity92%
Visibility—
Dew point59°
Sun, 0857° / 53°0
57 °
Harbor Isle, Sunday, 8 November
Light rain. High 57°, low 53°.
Pressure29.88 inHg
Wind8.9 mph S
Humidity75%
Visibility—
Dew point46°
Mon, 0956° / 48°1.27
56 °
Harbor Isle, Monday, 9 November
Rain. High 56°, low 48°.
Pressure29.65 inHg
Wind26.5 mph NW
Humidity89%
Visibility—
Dew point52°
Tue, 1050° / 48°0.02
50 °
Harbor Isle, Tuesday, 10 November
Light rain. High 50°, low 48°.
Pressure29.62 inHg
Wind26.3 mph NW
Humidity67%
Visibility—
Dew point39°
Wed, 1153° / 48°0
53 °
Harbor Isle, Wednesday, 11 November
Clear. High 53°, low 48°.
Pressure29.80 inHg
Wind28 mph W
Humidity60%
Visibility—
Dew point37°
Thu, 1255° / 49°0
55 °
Harbor Isle, Thursday, 12 November
Overcast. High 55°, low 49°.
Pressure29.80 inHg
Wind22.4 mph W
Humidity53%
Visibility—
Dew point35°
Fri, 1352° / 45°0
52 °
Harbor Isle, Friday, 13 November
Overcast. High 52°, low 45°.
Pressure30.00 inHg
Wind18.5 mph NW
Humidity58%
Visibility—
Dew point33°
Sat, 1455° / 47°0
55 °
Harbor Isle, Saturday, 14 November
Partly cloudy. High 55°, low 47°.
Pressure29.94 inHg
Wind25.4 mph W
Humidity59%
Visibility—
Dew point35°
Sun, 1551° / 44°0
51 °
Harbor Isle, Sunday, 15 November
Overcast. High 51°, low 44°.
Pressure30.12 inHg
Wind20.8 mph NW
Humidity56%
Visibility—
Dew point31°
Mon, 1647° / 41°0
47 °
Harbor Isle, Monday, 16 November
Overcast. High 47°, low 41°.
Pressure30.30 inHg
Wind16.7 mph N
Humidity49%
Visibility—
Dew point24°
Tue, 1748° / 40°0
48 °
Harbor Isle, Tuesday, 17 November
Overcast. High 48°, low 40°.
Pressure30.47 inHg
Wind16 mph NE
Humidity67%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 1851° / 40°0.07
51 °
Harbor Isle, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high51°
Average low40°
Average precipitation0.07 in
Chance of precipitation25%
Record high64° (1963)
Record low28° (2014)
Thu, 1951° / 40°0.08
51 °
Harbor Isle, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high51°
Average low40°
Average precipitation0.08 in
Chance of precipitation25%
Record high64° (1985)
Record low24° (2014)
Fri, 2051° / 40°0.12
51 °
Harbor Isle, Friday, 20 November
Climate normal for this date — 60-year average.
Average high51°
Average low40°
Average precipitation0.12 in
Chance of precipitation27%
Record high69° (1985)
Record low28° (1984)
Sat, 2150° / 39°0.11
50 °
Harbor Isle, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high50°
Average low39°
Average precipitation0.11 in
Chance of precipitation30%
Record high64° (1991)
Record low21° (1987)
Sun, 2249° / 39°0.13
49 °
Harbor Isle, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high49°
Average low39°
Average precipitation0.13 in
Chance of precipitation35%
Record high65° (2007)
Record low19° (2018)
Mon, 2348° / 37°0.11
48 °
Harbor Isle, Monday, 23 November
Climate normal for this date — 60-year average.
Average high48°
Average low37°
Average precipitation0.11 in
Chance of precipitation20%
Record high66° (1992)
Record low17° (2018)
Tue, 2450° / 38°0.09
50 °
Harbor Isle, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high50°
Average low38°
Average precipitation0.09 in
Chance of precipitation27%
Record high65° (2014)
Record low21° (1989)
Wed, 2549° / 38°0.13
49 °
Harbor Isle, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high49°
Average low38°
Average precipitation0.13 in
Chance of precipitation32%
Record high64° (1979)
Record low24° (2005)
Thu, 2651° / 39°0.19
51 °
Harbor Isle, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high51°
Average low39°
Average precipitation0.19 in
Chance of precipitation45%
Record high63° (1999)
Record low28° (1993)
Fri, 2751° / 39°0.13
51 °
Harbor Isle, Friday, 27 November
Climate normal for this date — 60-year average.
Average high51°
Average low39°
Average precipitation0.13 in
Chance of precipitation33%
Record high62° (1988)
Record low27° (1974)
Sat, 2851° / 40°0.14
51 °
Harbor Isle, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high51°
Average low40°
Average precipitation0.14 in
Chance of precipitation35%
Record high65° (1990)
Record low25° (1996)
Sun, 2949° / 38°0.09
49 °
Harbor Isle, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high49°
Average low38°
Average precipitation0.09 in
Chance of precipitation30%
Record high63° (1990)
Record low26° (2023)
Mon, 3048° / 37°0.13
48 °
Harbor Isle, Monday, 30 November
Climate normal for this date — 60-year average.
Average high48°
Average low37°
Average precipitation0.13 in
Chance of precipitation35%
Record high64° (2001)
Record low24° (1976)
Tue, 0147° / 37°0.14
47 °
Harbor Isle, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high47°
Average low37°
Average precipitation0.14 in
Chance of precipitation33%
Record high66° (2001)
Record low22° (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 Harbor Isle, 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 Harbor Isle, 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.