Monthly outlook for Half Hollow, NY: average high 59.8°, average low 49.3°. That is 1° above the climate normal for October. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 4 days and 1.9 inches. The warmest day looks like 31 October (66.5°), the coolest 24 October (41.7°).
59.8°/49.3°
Average high / low
+1°
Above normal
0 / 4
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
22 October – 31 October
61.2°
58.5°
+1.5°
1 November – 10 November
57.3°
56°
+0.7°
11 November – 20 November
at normal
51.4°
—
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).
Fri, 2358° / 46°0
58 °
Half Hollow, Friday, 23 October
Clear. High 58°, low 46°.
Pressure30.36 inHg
Wind6 mph N
Humidity52%
Visibility6.2 mi
Dew point35°
Sat, 2458° / 42°0
58 °
Half Hollow, Saturday, 24 October
Partly cloudy. High 58°, low 42°.
Pressure30.53 inHg
Wind2.9 mph NW
Humidity51%
Visibility6.2 mi
Dew point37°
Sun, 2562° / 43°0
62 °
Half Hollow, Sunday, 25 October
Clear. High 62°, low 43°.
Pressure30.56 inHg
Wind2.3 mph N
Humidity50%
Visibility6.2 mi
Dew point40°
Mon, 2663° / 44°0
63 °
Half Hollow, Monday, 26 October
Clear. High 63°, low 44°.
Pressure30.33 inHg
Wind6.5 mph NW
Humidity55%
Visibility—
Dew point39°
Tue, 2754° / 49°0
54 °
Half Hollow, Tuesday, 27 October
Clear. High 54°, low 49°.
Pressure30.39 inHg
Wind10.2 mph N
Humidity54%
Visibility—
Dew point35°
Wed, 2856° / 50°0
56 °
Half Hollow, Wednesday, 28 October
Overcast. High 56°, low 50°.
Pressure30.36 inHg
Wind6.5 mph NE
Humidity51%
Visibility—
Dew point36°
Thu, 2964° / 55°0
64 °
Half Hollow, Thursday, 29 October
Overcast. High 64°, low 55°.
Pressure30.15 inHg
Wind8.8 mph SW
Humidity72%
Visibility—
Dew point50°
Fri, 3066° / 58°0
66 °
Half Hollow, Friday, 30 October
Overcast. High 66°, low 58°.
Pressure30.18 inHg
Wind4.6 mph E
Humidity62%
Visibility—
Dew point49°
Sat, 3167° / 55°0
67 °
Half Hollow, Saturday, 31 October
Overcast. High 67°, low 55°.
Pressure30.24 inHg
Wind8.6 mph E
Humidity79%
Visibility—
Dew point55°
Sun, 0166° / 60°0
66 °
Half Hollow, Sunday, 1 November
Overcast. High 66°, low 60°.
Pressure29.94 inHg
Wind12.4 mph SW
Humidity78%
Visibility—
Dew point56°
Mon, 0261° / 55°0
61 °
Half Hollow, Monday, 2 November
Overcast. High 61°, low 55°.
Pressure30.00 inHg
Wind10.5 mph N
Humidity49%
Visibility—
Dew point40°
Tue, 0357° / 49°0
57 °
Half Hollow, Tuesday, 3 November
Overcast. High 57°, low 49°.
Pressure30.30 inHg
Wind10.3 mph N
Humidity35%
Visibility—
Dew point26°
Wed, 0455° / 47°0
55 °
Half Hollow, Wednesday, 4 November
Overcast. High 55°, low 47°.
Pressure30.39 inHg
Wind11.8 mph N
Humidity36%
Visibility—
Dew point25°
Thu, 0550° / 42°0
50 °
Half Hollow, Thursday, 5 November
Overcast. High 50°, low 42°.
Pressure30.62 inHg
Wind12.1 mph NE
Humidity42%
Visibility—
Dew point23°
Fri, 0656° / 46°0
56 °
Half Hollow, Friday, 6 November
Overcast. High 56°, low 46°.
Pressure30.53 inHg
Wind9.5 mph E
Humidity58%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 0755° / 46°0.1
55 °
Half Hollow, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high55°
Average low46°
Average precipitation0.1 in
Chance of precipitation27%
Record high76° (2022)
Record low35° (1962)
Sun, 0854° / 45°0.16
54 °
Half Hollow, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high54°
Average low45°
Average precipitation0.16 in
Chance of precipitation28%
Record high72° (2020)
Record low32° (2019)
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)
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.