Monthly outlook for Harbor Green, NY: average high 60.2°, average low 48.3°. That is 0.1° above the climate normal for October. Precipitation is expected on 3 days (about 0.6 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 16 October (75.5°), the coolest 18 October (38.1°).
60.2°/48.3°
Average high / low
+0.1°
Above normal
3 / 5
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
61.3°
61.1°
+0.1°
25 October – 3 November
58.4°
58.2°
+0.1°
4 November – 13 November
at normal
54.6°
—
October records over 66 years
85.1°2 October 2019All-time high
33.6°27 October 1976All-time low
Climate normals and records are computed from the nearest reference point — Massapequa (1 mi).
Fri, 1676° / 57°0.33
76 °
Harbor Green, Friday, 16 October
Rain. High 76°, low 57°.
Pressure29.80 inHg
Wind11.7 mph SW
Humidity92%
Visibility6.2 mi
Dew point66°
Sat, 1764° / 43°0.06
64 °
Harbor Green, Saturday, 17 October
Light rain. High 64°, low 43°.
Pressure30.12 inHg
Wind13.3 mph NW
Humidity46%
Visibility6.2 mi
Dew point32°
Sun, 1853° / 38°0
53 °
Harbor Green, Sunday, 18 October
Clear. High 53°, low 38°.
Pressure30.59 inHg
Wind1.3 mph W
Humidity52%
Visibility6.2 mi
Dew point34°
Mon, 1959° / 44°0
59 °
Harbor Green, Monday, 19 October
Clear. High 59°, low 44°.
Pressure30.56 inHg
Wind5 mph SW
Humidity63%
Visibility—
Dew point43°
Tue, 2063° / 45°0
63 °
Harbor Green, Tuesday, 20 October
Clear. High 63°, low 45°.
Pressure30.36 inHg
Wind4.1 mph N
Humidity67%
Visibility—
Dew point46°
Wed, 2164° / 53°0
64 °
Harbor Green, Wednesday, 21 October
Partly cloudy. High 64°, low 53°.
Pressure30.33 inHg
Wind11.1 mph NE
Humidity59%
Visibility—
Dew point45°
Thu, 2259° / 56°0.02
59 °
Harbor Green, Thursday, 22 October
Light rain. High 59°, low 56°.
Pressure30.39 inHg
Wind9 mph S
Humidity67%
Visibility—
Dew point46°
Fri, 2359° / 46°0.02
59 °
Harbor Green, Friday, 23 October
Light rain. High 59°, low 46°.
Pressure30.30 inHg
Wind20.7 mph N
Humidity47%
Visibility—
Dew point37°
Sat, 2452° / 45°0
52 °
Harbor Green, Saturday, 24 October
Mostly clear. High 52°, low 45°.
Pressure30.62 inHg
Wind17.7 mph NE
Humidity57%
Visibility—
Dew point33°
Sun, 2555° / 45°0
55 °
Harbor Green, Sunday, 25 October
Overcast. High 55°, low 45°.
Pressure30.50 inHg
Wind17.5 mph NE
Humidity62%
Visibility—
Dew point35°
Mon, 2661° / 47°0
61 °
Harbor Green, Monday, 26 October
Clear. High 61°, low 47°.
Pressure30.33 inHg
Wind15.9 mph N
Humidity38%
Visibility—
Dew point28°
Tue, 2758° / 49°0
58 °
Harbor Green, Tuesday, 27 October
Mostly clear. High 58°, low 49°.
Pressure30.39 inHg
Wind14.5 mph SW
Humidity46%
Visibility—
Dew point33°
Wed, 2863° / 52°0
63 °
Harbor Green, Wednesday, 28 October
Overcast. High 63°, low 52°.
Pressure30.09 inHg
Wind17.8 mph W
Humidity67%
Visibility—
Dew point50°
Thu, 2953° / 48°0
53 °
Harbor Green, Thursday, 29 October
Overcast. High 53°, low 48°.
Pressure30.36 inHg
Wind11.3 mph NE
Humidity39%
Visibility—
Dew point25°
Fri, 3061° / 52°0.2
61 °
Harbor Green, Friday, 30 October
Light rain. High 61°, low 52°.
Pressure30.18 inHg
Wind14 mph SW
Humidity81%
Visibility—
Dew point50°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3157° / 48°0.05
57 °
Harbor Green, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high57°
Average low48°
Average precipitation0.05 in
Chance of precipitation18%
Record high71° (2024)
Record low34° (2020)
Sun, 0159° / 50°0.13
59 °
Harbor Green, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high59°
Average low50°
Average precipitation0.13 in
Chance of precipitation28%
Record high77° (2024)
Record low38° (1976)
Mon, 0258° / 49°0.08
58 °
Harbor Green, Monday, 2 November
Climate normal for this date — 60-year average.
Average high58°
Average low49°
Average precipitation0.08 in
Chance of precipitation33%
Record high71° (1971)
Record low33° (1965)
Tue, 0358° / 48°0.11
58 °
Harbor Green, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high58°
Average low48°
Average precipitation0.11 in
Chance of precipitation27%
Record high69° (2003)
Record low37° (1996)
Wed, 0457° / 47°0.06
57 °
Harbor Green, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high57°
Average low47°
Average precipitation0.06 in
Chance of precipitation23%
Record high69° (1975)
Record low37° (1966)
Thu, 0556° / 48°0.13
56 °
Harbor Green, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high56°
Average low48°
Average precipitation0.13 in
Chance of precipitation33%
Record high68° (2022)
Record low38° (1995)
Fri, 0655° / 47°0.1
55 °
Harbor Green, Friday, 6 November
Climate normal for this date — 60-year average.
Average high55°
Average low47°
Average precipitation0.1 in
Chance of precipitation37%
Record high70° (2024)
Record low36° (1962)
Sat, 0755° / 46°0.1
55 °
Harbor Green, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high55°
Average low46°
Average precipitation0.1 in
Chance of precipitation28%
Record high74° (2022)
Record low35° (1962)
Sun, 0854° / 45°0.16
54 °
Harbor Green, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high54°
Average low45°
Average precipitation0.16 in
Chance of precipitation28%
Record high68° (2020)
Record low33° (2019)
Mon, 0955° / 45°0.09
55 °
Harbor Green, Monday, 9 November
Climate normal for this date — 60-year average.
Average high55°
Average low45°
Average precipitation0.09 in
Chance of precipitation23%
Record high66° (1986)
Record low28° (2019)
Tue, 1055° / 45°0.18
55 °
Harbor Green, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high55°
Average low45°
Average precipitation0.18 in
Chance of precipitation42%
Record high67° (1999)
Record low28° (2017)
Wed, 1154° / 45°0.15
54 °
Harbor Green, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high54°
Average low45°
Average precipitation0.15 in
Chance of precipitation38%
Record high68° (2024)
Record low26° (2017)
Thu, 1253° / 44°0.17
53 °
Harbor Green, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high53°
Average low44°
Average precipitation0.17 in
Chance of precipitation45%
Record high69° (2022)
Record low30° (2019)
Fri, 1352° / 42°0.22
52 °
Harbor Green, Friday, 13 November
Climate normal for this date — 60-year average.
Average high52°
Average low42°
Average precipitation0.22 in
Chance of precipitation40%
Record high67° (1964)
Record low24° (2019)
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 Green, 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 Green, 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.