Monthly outlook for Holtsville, NY: average high 60.2°, average low 49.2°. That is 3° above the climate normal for November. Precipitation is expected on 2 days (about 0.5 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 6 November (72.4°), the coolest 1 November (34.4°).
60.2°/49.2°
Average high / low
+3°
Above normal
2 / 5
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
1 November – 10 November
63.7°
56.2°
+4.1°
11 November – 20 November
54.5°
51.8°
+1.5°
21 November – 30 November
at normal
49.5°
—
November records over 66 years
75.6°1 November 2024All-time high
19.2°23 November 2018All-time low
Climate normals and records are computed from the nearest reference point — Patchogue (4 mi).
Mon, 0265° / 42°0
65 °
Holtsville, Monday, 2 November
Overcast. High 65°, low 42°.
Pressure30.39 inHg
Wind6.7 mph SW
Humidity38%
Visibility6.2 mi
Dew point37°
Tue, 0368° / 44°0
68 °
Holtsville, Tuesday, 3 November
Overcast. High 68°, low 44°.
Pressure30.30 inHg
Wind4.3 mph SW
Humidity41%
Visibility6.2 mi
Dew point43°
Wed, 0469° / 54°0
69 °
Holtsville, Wednesday, 4 November
Clear. High 69°, low 54°.
Pressure30.18 inHg
Wind7.7 mph SW
Humidity58%
Visibility6.2 mi
Dew point53°
Thu, 0569° / 60°0.03
69 °
Holtsville, Thursday, 5 November
Light rain. High 69°, low 60°.
Pressure29.94 inHg
Wind8.1 mph S
Humidity85%
Visibility6.2 mi
Dew point64°
Fri, 0672° / 60°0.06
72 °
Holtsville, Friday, 6 November
Light rain. High 72°, low 60°.
Pressure29.85 inHg
Wind7.1 mph SW
Humidity83%
Visibility—
Dew point62°
Sat, 0761° / 54°0.03
61 °
Holtsville, Saturday, 7 November
Light rain. High 61°, low 54°.
Pressure29.83 inHg
Wind12.8 mph N
Humidity87%
Visibility—
Dew point54°
Sun, 0861° / 54°0
61 °
Holtsville, Sunday, 8 November
Partly cloudy. High 61°, low 54°.
Pressure29.80 inHg
Wind13 mph N
Humidity52%
Visibility—
Dew point40°
Mon, 0959° / 51°0
59 °
Holtsville, Monday, 9 November
Overcast. High 59°, low 51°.
Pressure29.97 inHg
Wind7.6 mph NW
Humidity59%
Visibility—
Dew point41°
Tue, 1057° / 52°0
57 °
Holtsville, Tuesday, 10 November
Overcast. High 57°, low 52°.
Pressure30.03 inHg
Wind7.5 mph NE
Humidity70%
Visibility—
Dew point45°
Wed, 1160° / 49°0
60 °
Holtsville, Wednesday, 11 November
Clear. High 60°, low 49°.
Pressure29.85 inHg
Wind19.8 mph NW
Humidity55%
Visibility—
Dew point39°
Thu, 1251° / 45°0
51 °
Holtsville, Thursday, 12 November
Clear. High 51°, low 45°.
Pressure30.06 inHg
Wind18.2 mph NW
Humidity53%
Visibility—
Dew point31°
Fri, 1348° / 42°0
48 °
Holtsville, Friday, 13 November
Mostly clear. High 48°, low 42°.
Pressure30.39 inHg
Wind10.8 mph N
Humidity56%
Visibility—
Dew point30°
Sat, 1453° / 44°0
53 °
Holtsville, Saturday, 14 November
Clear. High 53°, low 44°.
Pressure30.45 inHg
Wind11.2 mph SW
Humidity41%
Visibility—
Dew point26°
Sun, 1560° / 52°0.35
60 °
Holtsville, Sunday, 15 November
Rain. High 60°, low 52°.
Pressure30.09 inHg
Wind18.2 mph S
Humidity77%
Visibility—
Dew point51°
Mon, 1655° / 51°0.01
55 °
Holtsville, Monday, 16 November
Light rain. High 55°, low 51°.
Pressure29.65 inHg
Wind16.5 mph NW
Humidity71%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 1751° / 42°0.14
51 °
Holtsville, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high51°
Average low42°
Average precipitation0.14 in
Chance of precipitation37%
Record high65° (2006)
Record low31° (2019)
Wed, 1851° / 42°0.08
51 °
Holtsville, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high51°
Average low42°
Average precipitation0.08 in
Chance of precipitation23%
Record high63° (2024)
Record low30° (2020)
Thu, 1951° / 42°0.07
51 °
Holtsville, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high51°
Average low42°
Average precipitation0.07 in
Chance of precipitation28%
Record high62° (2021)
Record low27° (2014)
Fri, 2051° / 42°0.12
51 °
Holtsville, Friday, 20 November
Climate normal for this date — 60-year average.
Average high51°
Average low42°
Average precipitation0.12 in
Chance of precipitation30%
Record high66° (1985)
Record low29° (1984)
Sat, 2150° / 40°0.1
50 °
Holtsville, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.1 in
Chance of precipitation30%
Record high62° (2020)
Record low23° (1987)
Sun, 2249° / 41°0.16
49 °
Holtsville, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high49°
Average low41°
Average precipitation0.16 in
Chance of precipitation37%
Record high61° (1994)
Record low20° (2018)
Mon, 2348° / 39°0.12
48 °
Holtsville, Monday, 23 November
Climate normal for this date — 60-year average.
Average high48°
Average low39°
Average precipitation0.12 in
Chance of precipitation22%
Record high63° (1992)
Record low19° (2018)
Tue, 2449° / 40°0.1
49 °
Holtsville, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high49°
Average low40°
Average precipitation0.1 in
Chance of precipitation28%
Record high62° (1979)
Record low26° (2013)
Wed, 2549° / 40°0.14
49 °
Holtsville, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high49°
Average low40°
Average precipitation0.14 in
Chance of precipitation33%
Record high63° (1979)
Record low26° (2013)
Thu, 2651° / 41°0.21
51 °
Holtsville, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high51°
Average low41°
Average precipitation0.21 in
Chance of precipitation43%
Record high64° (1979)
Record low29° (2023)
Fri, 2751° / 41°0.12
51 °
Holtsville, Friday, 27 November
Climate normal for this date — 60-year average.
Average high51°
Average low41°
Average precipitation0.12 in
Chance of precipitation35%
Record high62° (1986)
Record low29° (1978)
Sat, 2851° / 41°0.16
51 °
Holtsville, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high51°
Average low41°
Average precipitation0.16 in
Chance of precipitation40%
Record high62° (1990)
Record low26° (2002)
Sun, 2949° / 40°0.11
49 °
Holtsville, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high49°
Average low40°
Average precipitation0.11 in
Chance of precipitation30%
Record high63° (2011)
Record low27° (2023)
Mon, 3048° / 39°0.14
48 °
Holtsville, Monday, 30 November
Climate normal for this date — 60-year average.
Average high48°
Average low39°
Average precipitation0.14 in
Chance of precipitation35%
Record high65° (2020)
Record low26° (1976)
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 Holtsville, 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 Holtsville, 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.