As of 19:45 EST

Weather in Holtsville, NY

51°

Holtsville, Saturday, 7 November, 19:45

Mostly clear. Feels like 48°. High 58°, low 49°.

Pressure29.80 inHg

Wind15 mph NW

Humidity60%

Visibility6.2 mi

Dew point37°

See detailed hourly forecast

Monthly outlook for Holtsville, NY: average high 52°, average low 44.4°. That is 0.2° below the climate normal for November. Precipitation is expected on 5 days (about 1.9 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 7 November (58.5°), the coolest 18 November (39.5°).

52°/44.4°

Average high / low

−0.2°

Below normal

5 / 5

Wet days / normal

1.9 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
7 November – 16 November	52.4°	53.4°	-0.5°
17 November – 26 November	51.3°	50.1°	+0.7°
27 November – 6 December	at normal	47.8°	—

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).

Sun, 0858° / 49°

58 °

Holtsville, Sunday, 8 November

Clear. High 58°, low 49°.

Pressure29.83 inHg

Wind11.7 mph W

Humidity59%

Visibility6.2 mi

Dew point44°

Mon, 0955° / 47°

55 °

Holtsville, Monday, 9 November

Overcast. High 55°, low 47°.

Pressure29.77 inHg

Wind13.3 mph NW

Humidity59%

Visibility6.2 mi

Dew point41°

Tue, 1055° / 43°

55 °

Holtsville, Tuesday, 10 November

Overcast. High 55°, low 43°.

Pressure29.94 inHg

Wind6.9 mph W

Humidity60%

Visibility6.2 mi

Dew point40°

Wed, 1156° / 47°

56 °

Holtsville, Wednesday, 11 November

Clear. High 56°, low 47°.

Pressure29.91 inHg

Wind6.4 mph NW

Humidity60%

Visibility6.2 mi

Dew point41°

Thu, 1257° / 46°

0.11

57 °

Holtsville, Thursday, 12 November

Light rain. High 57°, low 46°.

Pressure29.77 inHg

Wind16.5 mph NE

Humidity71%

Visibility—

Dew point45°

Fri, 1347° / 43°

1.06

47 °

Holtsville, Friday, 13 November

Rain. High 47°, low 43°.

Pressure29.38 inHg

Wind21.3 mph NE

Humidity92%

Visibility—

Dew point44°

Sat, 1443° / 40°

0.33

43 °

Holtsville, Saturday, 14 November

Rain. High 43°, low 40°.

Pressure29.38 inHg

Wind19.6 mph NE

Humidity88%

Visibility—

Dew point39°

Sun, 1547° / 40°

0.02

47 °

Holtsville, Sunday, 15 November

Light rain. High 47°, low 40°.

Pressure29.77 inHg

Wind18.7 mph NW

Humidity65%

Visibility—

Dew point34°

Mon, 1647° / 42°

47 °

Holtsville, Monday, 16 November

Clear. High 47°, low 42°.

Pressure30.12 inHg

Wind16 mph NW

Humidity59%

Visibility—

Dew point31°

Tue, 1750° / 41°

50 °

Holtsville, Tuesday, 17 November

Clear. High 50°, low 41°.

Pressure30.30 inHg

Wind10.2 mph N

Humidity54%

Visibility—

Dew point29°

Wed, 1846° / 40°

46 °

Holtsville, Wednesday, 18 November

Overcast. High 46°, low 40°.

Pressure30.47 inHg

Wind12.5 mph NE

Humidity55%

Visibility—

Dew point27°

Thu, 1953° / 43°

53 °

Holtsville, Thursday, 19 November

Overcast. High 53°, low 43°.

Pressure30.42 inHg

Wind8.6 mph SW

Humidity56%

Visibility—

Dew point32°

Fri, 2053° / 51°

0.15

53 °

Holtsville, Friday, 20 November

Light rain. High 53°, low 51°.

Pressure30.15 inHg

Wind8.4 mph SW

Humidity89%

Visibility—

Dew point49°

Sat, 2152° / 47°

0.02

52 °

Holtsville, Saturday, 21 November

Light rain. High 52°, low 47°.

Pressure30.21 inHg

Wind9.7 mph NE

Humidity78%

Visibility—

Dew point44°

Sun, 2253° / 44°

53 °

Holtsville, Sunday, 22 November

Clear. High 53°, low 44°.

Pressure30.24 inHg

Wind7.2 mph N

Humidity54%

Visibility—

Dew point32°

From day 17 onward the outlook is built from 60-year climate statistics

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)

Tue, 0148° / 38°

0.14

48 °

Holtsville, Tuesday, 1 December

Climate normal for this date — 60-year average.

Average high48°

Average low38°

Average precipitation0.14 in

Chance of precipitation37%

Record high64° (2001)

Record low24° (1964)

Wed, 0247° / 38°

0.14

47 °

Holtsville, Wednesday, 2 December

Climate normal for this date — 60-year average.

Average high47°

Average low38°

Average precipitation0.14 in

Chance of precipitation33%

Record high59° (2006)

Record low22° (1989)

Thu, 0347° / 37°

0.15

47 °

Holtsville, Thursday, 3 December

Climate normal for this date — 60-year average.

Average high47°

Average low37°

Average precipitation0.15 in

Chance of precipitation30%

Record high61° (2009)

Record low17° (1976)

Fri, 0446° / 37°

0.11

46 °

Holtsville, Friday, 4 December

Climate normal for this date — 60-year average.

Average high46°

Average low37°

Average precipitation0.11 in

Chance of precipitation23%

Record high64° (1998)

Record low18° (1989)

Sat, 0545° / 36°

0.19

45 °

Holtsville, Saturday, 5 December

Climate normal for this date — 60-year average.

Average high45°

Average low36°

Average precipitation0.19 in

Chance of precipitation30%

Record high62° (2001)

Record low20° (2025)

Sun, 0646° / 37°

0.18

46 °

Holtsville, Sunday, 6 December

Climate normal for this date — 60-year average.

Average high46°

Average low37°

Average precipitation0.18 in

Chance of precipitation47%

Record high63° (2001)

Record low25° (2007)

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.