Monthly outlook for Harbor Isle, NY: average high 60.2°, average low 50°. That is 2° above the climate normal for October. Precipitation is expected on 4 days (about 1.8 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 30 October (69.2°), the coolest 28 October (39.6°).
60.2°/50°
Average high / low
+2°
Above normal
4 / 5
Wet days / normal
1.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
28 October – 6 November
62.9°
57.8°
+2.8°
7 November – 16 November
55.7°
53.5°
+1.2°
17 November – 26 November
at normal
50.1°
—
October records over 66 years
89.6°2 October 2019All-time high
32.7°27 October 1976All-time low
Thu, 2968° / 46°0
68 °
Harbor Isle, Thursday, 29 October
Clear. High 68°, low 46°.
Pressure30.27 inHg
Wind6.3 mph SW
Humidity66%
Visibility6.2 mi
Dew point50°
Fri, 3069° / 51°0
69 °
Harbor Isle, Friday, 30 October
Clear. High 69°, low 51°.
Pressure30.06 inHg
Wind9 mph NW
Humidity58%
Visibility6.2 mi
Dew point52°
Sat, 3158° / 48°0
58 °
Harbor Isle, Saturday, 31 October
Partly cloudy. High 58°, low 48°.
Pressure30.39 inHg
Wind6.5 mph N
Humidity49%
Visibility6.2 mi
Dew point36°
Sun, 0159° / 46°0
59 °
Harbor Isle, Sunday, 1 November
Clear. High 59°, low 46°.
Pressure30.42 inHg
Wind3 mph S
Humidity56%
Visibility6.2 mi
Dew point41°
Mon, 0262° / 49°0
62 °
Harbor Isle, Monday, 2 November
Clear. High 62°, low 49°.
Pressure30.33 inHg
Wind5.5 mph S
Humidity62%
Visibility—
Dew point44°
Tue, 0361° / 54°0
61 °
Harbor Isle, Tuesday, 3 November
Overcast. High 61°, low 54°.
Pressure30.24 inHg
Wind12.2 mph E
Humidity83%
Visibility—
Dew point52°
Wed, 0460° / 57°0
60 °
Harbor Isle, Wednesday, 4 November
Overcast. High 60°, low 57°.
Pressure30.21 inHg
Wind13.8 mph E
Humidity76%
Visibility—
Dew point51°
Thu, 0564° / 59°1.08
64 °
Harbor Isle, Thursday, 5 November
Heavy rain. High 64°, low 59°.
Pressure29.97 inHg
Wind34.8 mph SE
Humidity76%
Visibility—
Dew point53°
Fri, 0665° / 58°0.22
65 °
Harbor Isle, Friday, 6 November
Rain. High 65°, low 58°.
Pressure29.47 inHg
Wind29.4 mph S
Humidity84%
Visibility—
Dew point57°
Sat, 0756° / 52°0
56 °
Harbor Isle, Saturday, 7 November
Clear. High 56°, low 52°.
Pressure29.91 inHg
Wind19.5 mph W
Humidity52%
Visibility—
Dew point36°
Sun, 0856° / 48°0
56 °
Harbor Isle, Sunday, 8 November
Overcast. High 56°, low 48°.
Pressure30.12 inHg
Wind15.6 mph W
Humidity57%
Visibility—
Dew point36°
Mon, 0955° / 48°0
55 °
Harbor Isle, Monday, 9 November
Overcast. High 55°, low 48°.
Pressure30.15 inHg
Wind12.7 mph NW
Humidity45%
Visibility—
Dew point30°
Tue, 1057° / 54°0.35
57 °
Harbor Isle, Tuesday, 10 November
Light rain. High 57°, low 54°.
Pressure29.83 inHg
Wind13.8 mph SW
Humidity88%
Visibility—
Dew point51°
Wed, 1161° / 47°0.11
61 °
Harbor Isle, Wednesday, 11 November
Light rain. High 61°, low 47°.
Pressure29.56 inHg
Wind31.6 mph W
Humidity66%
Visibility—
Dew point40°
Thu, 1249° / 42°0
49 °
Harbor Isle, Thursday, 12 November
Light rain. High 49°, low 42°.
Pressure29.68 inHg
Wind24.2 mph W
Humidity63%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 1352° / 41°0.2
52 °
Harbor Isle, Friday, 13 November
Climate normal for this date — 60-year average.
Average high52°
Average low41°
Average precipitation0.2 in
Chance of precipitation37%
Record high69° (1964)
Record low24° (2019)
Sat, 1452° / 41°0.09
52 °
Harbor Isle, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high52°
Average low41°
Average precipitation0.09 in
Chance of precipitation23%
Record high67° (1989)
Record low25° (2019)
Sun, 1553° / 41°0.11
53 °
Harbor Isle, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high53°
Average low41°
Average precipitation0.11 in
Chance of precipitation38%
Record high72° (1993)
Record low26° (1967)
Mon, 1652° / 40°0.12
52 °
Harbor Isle, Monday, 16 November
Climate normal for this date — 60-year average.
Average high52°
Average low40°
Average precipitation0.12 in
Chance of precipitation32%
Record high68° (2001)
Record low24° (1967)
Tue, 1751° / 40°0.11
51 °
Harbor Isle, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high51°
Average low40°
Average precipitation0.11 in
Chance of precipitation32%
Record high65° (2006)
Record low29° (1967)
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)
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.