Monthly outlook for Half Hollow, NY: average high 59.5°, average low 47.5°. That is 1.3° above the climate normal for October. Precipitation is expected on 4 days (about 2.4 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 30 October (68.6°), the coolest 24 October (37.1°).
59.5°/47.5°
Average high / low
+1.3°
Above normal
4 / 5
Wet days / normal
2.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
24 October – 2 November
61.5°
58.1°
+1.8°
3 November – 12 November
56.4°
55°
+0.8°
13 November – 22 November
at normal
50.6°
—
October records over 66 years
84.9°2 October 2019All-time high
33.3°27 October 1976All-time low
Climate normals and records are computed from the nearest reference point — North Bay Shore (4 mi).
Sun, 2566° / 42°0
66 °
Half Hollow, Sunday, 25 October
Clear. High 66°, low 42°.
Pressure30.56 inHg
Wind2.6 mph N
Humidity45%
Visibility6.2 mi
Dew point39°
Mon, 2666° / 45°0
66 °
Half Hollow, Monday, 26 October
Clear. High 66°, low 45°.
Pressure30.27 inHg
Wind5.1 mph W
Humidity56%
Visibility6.2 mi
Dew point44°
Tue, 2757° / 46°0
57 °
Half Hollow, Tuesday, 27 October
Clear. High 57°, low 46°.
Pressure30.36 inHg
Wind7.4 mph NE
Humidity53%
Visibility6.2 mi
Dew point37°
Wed, 2855° / 43°0
55 °
Half Hollow, Wednesday, 28 October
Mostly clear. High 55°, low 43°.
Pressure30.56 inHg
Wind6.4 mph NE
Humidity62%
Visibility—
Dew point37°
Thu, 2963° / 45°0
63 °
Half Hollow, Thursday, 29 October
Clear. High 63°, low 45°.
Pressure30.39 inHg
Wind7.9 mph SW
Humidity64%
Visibility—
Dew point46°
Fri, 3069° / 52°0
69 °
Half Hollow, Friday, 30 October
Clear. High 69°, low 52°.
Pressure30.12 inHg
Wind10.1 mph N
Humidity54%
Visibility—
Dew point42°
Sat, 3159° / 53°0
59 °
Half Hollow, Saturday, 31 October
Clear. High 59°, low 53°.
Pressure30.33 inHg
Wind11.7 mph NE
Humidity60%
Visibility—
Dew point43°
Sun, 0156° / 49°0
56 °
Half Hollow, Sunday, 1 November
Overcast. High 56°, low 49°.
Pressure30.39 inHg
Wind6.8 mph S
Humidity56%
Visibility—
Dew point38°
Mon, 0262° / 56°0.01
62 °
Half Hollow, Monday, 2 November
Light rain. High 62°, low 56°.
Pressure30.09 inHg
Wind7.9 mph SW
Humidity73%
Visibility—
Dew point49°
Tue, 0363° / 55°0.04
63 °
Half Hollow, Tuesday, 3 November
Light rain. High 63°, low 55°.
Pressure30.12 inHg
Wind9.5 mph E
Humidity62%
Visibility—
Dew point47°
Wed, 0461° / 59°0.92
61 °
Half Hollow, Wednesday, 4 November
Rain. High 61°, low 59°.
Pressure29.94 inHg
Wind10.8 mph S
Humidity96%
Visibility—
Dew point59°
Thu, 0564° / 60°1.36
64 °
Half Hollow, Thursday, 5 November
Heavy rain. High 64°, low 60°.
Pressure29.62 inHg
Wind15.8 mph S
Humidity97%
Visibility—
Dew point62°
Fri, 0658° / 40°0.09
58 °
Half Hollow, Friday, 6 November
Light rain. High 58°, low 40°.
Pressure29.65 inHg
Wind19.9 mph NW
Humidity54%
Visibility—
Dew point33°
Sat, 0745° / 40°0
45 °
Half Hollow, Saturday, 7 November
Clear. High 45°, low 40°.
Pressure30.33 inHg
Wind13 mph NW
Humidity43%
Visibility—
Dew point21°
Sun, 0847° / 38°0
47 °
Half Hollow, Sunday, 8 November
Partly cloudy. High 47°, low 38°.
Pressure30.50 inHg
Wind9.1 mph SW
Humidity37%
Visibility—
Dew point18°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0954° / 45°0.1
54 °
Half Hollow, Monday, 9 November
Climate normal for this date — 60-year average.
Average high54°
Average low45°
Average precipitation0.1 in
Chance of precipitation25%
Record high69° (2020)
Record low28° (2019)
Tue, 1055° / 45°0.18
55 °
Half Hollow, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high55°
Average low45°
Average precipitation0.18 in
Chance of precipitation40%
Record high66° (1999)
Record low28° (2017)
Wed, 1154° / 45°0.15
54 °
Half Hollow, 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, 1252° / 43°0.17
52 °
Half Hollow, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high52°
Average low43°
Average precipitation0.17 in
Chance of precipitation45%
Record high70° (2022)
Record low30° (2019)
Fri, 1351° / 42°0.23
51 °
Half Hollow, Friday, 13 November
Climate normal for this date — 60-year average.
Average high51°
Average low42°
Average precipitation0.23 in
Chance of precipitation40%
Record high66° (1964)
Record low23° (2019)
Sat, 1451° / 42°0.11
51 °
Half Hollow, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high51°
Average low42°
Average precipitation0.11 in
Chance of precipitation23%
Record high64° (1989)
Record low27° (2019)
Sun, 1552° / 42°0.12
52 °
Half Hollow, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high52°
Average low42°
Average precipitation0.12 in
Chance of precipitation43%
Record high70° (1993)
Record low26° (1967)
Mon, 1651° / 42°0.14
51 °
Half Hollow, Monday, 16 November
Climate normal for this date — 60-year average.
Average high51°
Average low42°
Average precipitation0.14 in
Chance of precipitation37%
Record high65° (2001)
Record low25° (1967)
Tue, 1751° / 41°0.14
51 °
Half Hollow, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high51°
Average low41°
Average precipitation0.14 in
Chance of precipitation37%
Record high64° (2006)
Record low31° (1967)
Wed, 1851° / 42°0.08
51 °
Half Hollow, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high51°
Average low42°
Average precipitation0.08 in
Chance of precipitation25%
Record high64° (2024)
Record low30° (2014)
Thu, 1951° / 41°0.08
51 °
Half Hollow, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high51°
Average low41°
Average precipitation0.08 in
Chance of precipitation28%
Record high61° (1985)
Record low26° (2014)
Fri, 2050° / 41°0.12
50 °
Half Hollow, Friday, 20 November
Climate normal for this date — 60-year average.
Average high50°
Average low41°
Average precipitation0.12 in
Chance of precipitation30%
Record high67° (1985)
Record low29° (1984)
Sat, 2150° / 40°0.11
50 °
Half Hollow, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.11 in
Chance of precipitation32%
Record high62° (2020)
Record low22° (1987)
Sun, 2249° / 40°0.16
49 °
Half Hollow, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high49°
Average low40°
Average precipitation0.16 in
Chance of precipitation37%
Record high61° (2007)
Record low20° (2018)
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 Half Hollow, 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 Half Hollow, 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.