As of 12:00 EST

Weather in Holtsville, NY

42°

Holtsville, Saturday, 14 November, 12:00

Overcast. Feels like 35°. High 44°, low 36°.

Pressure29.74 inHg

Wind12.7 mph N

Humidity61%

Visibility6.2 mi

Dew point30°

See detailed hourly forecast

Monthly outlook for Holtsville, NY: average high 52.5°, average low 42.5°. That is 1.1° above the climate normal for November. Precipitation is expected on 1 day (about 0.4 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 29 November (61.4°), the coolest 14 November (36°).

52.5°/42.5°

Average high / low

+1.1°

Above normal

1 / 5

Wet days / normal

0.4 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
14 November – 23 November	52.8°	50.7°	+1.2°
24 November – 3 December	52°	49°	+1.6°
4 December – 13 December	at normal	44.9°	—

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, 1546° / 39°

46 °

Holtsville, Sunday, 15 November

Partly cloudy. High 46°, low 39°.

Pressure30.09 inHg

Wind11.1 mph NW

Humidity55%

Visibility6.2 mi

Dew point30°

Mon, 1648° / 37°

48 °

Holtsville, Monday, 16 November

Overcast. High 48°, low 37°.

Pressure30.39 inHg

Wind8.3 mph NW

Humidity59%

Visibility6.2 mi

Dew point33°

Tue, 1751° / 37°

51 °

Holtsville, Tuesday, 17 November

Clear. High 51°, low 37°.

Pressure30.47 inHg

Wind5.1 mph NW

Humidity67%

Visibility6.2 mi

Dew point39°

Wed, 1856° / 41°

56 °

Holtsville, Wednesday, 18 November

Mostly clear. High 56°, low 41°.

Pressure30.42 inHg

Wind4.3 mph NW

Humidity53%

Visibility6.2 mi

Dew point37°

Thu, 1960° / 41°

60 °

Holtsville, Thursday, 19 November

Partly cloudy. High 60°, low 41°.

Pressure30.42 inHg

Wind6 mph W

Humidity66%

Visibility—

Dew point40°

Fri, 2059° / 47°

59 °

Holtsville, Friday, 20 November

Clear. High 59°, low 47°.

Pressure30.21 inHg

Wind10.9 mph N

Humidity60%

Visibility—

Dew point40°

Sat, 2153° / 47°

53 °

Holtsville, Saturday, 21 November

Clear. High 53°, low 47°.

Pressure30.39 inHg

Wind9.6 mph N

Humidity66%

Visibility—

Dew point39°

Sun, 2257° / 51°

57 °

Holtsville, Sunday, 22 November

Light rain. High 57°, low 51°.

Pressure30.15 inHg

Wind14.6 mph SW

Humidity70%

Visibility—

Dew point46°

Mon, 2355° / 39°

55 °

Holtsville, Monday, 23 November

Clear. High 55°, low 39°.

Pressure29.80 inHg

Wind18.1 mph W

Humidity50%

Visibility—

Dew point29°

Tue, 2444° / 36°

44 °

Holtsville, Tuesday, 24 November

Clear. High 44°, low 36°.

Pressure30.15 inHg

Wind18 mph NW

Humidity51%

Visibility—

Dew point22°

Wed, 2544° / 36°

44 °

Holtsville, Wednesday, 25 November

Overcast. High 44°, low 36°.

Pressure30.47 inHg

Wind8.7 mph N

Humidity49%

Visibility—

Dew point22°

Thu, 2652° / 42°

52 °

Holtsville, Thursday, 26 November

Overcast. High 52°, low 42°.

Pressure30.45 inHg

Wind9.3 mph SW

Humidity57%

Visibility—

Dew point33°

Fri, 2753° / 47°

53 °

Holtsville, Friday, 27 November

Overcast. High 53°, low 47°.

Pressure30.45 inHg

Wind4.9 mph N

Humidity60%

Visibility—

Dew point37°

Sat, 2857° / 50°

57 °

Holtsville, Saturday, 28 November

Clear. High 57°, low 50°.

Pressure30.42 inHg

Wind10.8 mph S

Humidity81%

Visibility—

Dew point48°

Sun, 2961° / 54°

0.42

61 °

Holtsville, Sunday, 29 November

Rain. High 61°, low 54°.

Pressure30.03 inHg

Wind19.6 mph SW

Humidity82%

Visibility—

Dew point55°

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

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)

Mon, 0745° / 36°

0.15

45 °

Holtsville, Monday, 7 December

Climate normal for this date — 60-year average.

Average high45°

Average low36°

Average precipitation0.15 in

Chance of precipitation35%

Record high67° (1998)

Record low23° (1964)

Tue, 0843° / 35°

0.12

43 °

Holtsville, Tuesday, 8 December

Climate normal for this date — 60-year average.

Average high43°

Average low35°

Average precipitation0.12 in

Chance of precipitation38%

Record high57° (1978)

Record low22° (2006)

Wed, 0945° / 35°

0.24

45 °

Holtsville, Wednesday, 9 December

Climate normal for this date — 60-year average.

Average high45°

Average low35°

Average precipitation0.24 in

Chance of precipitation42%

Record high62° (1978)

Record low17° (1968)

Thu, 1045° / 36°

0.15

45 °

Holtsville, Thursday, 10 December

Climate normal for this date — 60-year average.

Average high45°

Average low36°

Average precipitation0.15 in

Chance of precipitation40%

Record high59° (2023)

Record low13° (1968)

Fri, 1145° / 36°

0.27

45 °

Holtsville, Friday, 11 December

Climate normal for this date — 60-year average.

Average high45°

Average low36°

Average precipitation0.27 in

Chance of precipitation47%

Record high61° (2021)

Record low17° (1977)

Sat, 1244° / 35°

0.15

44 °

Holtsville, Saturday, 12 December

Climate normal for this date — 60-year average.

Average high44°

Average low35°

Average precipitation0.15 in

Chance of precipitation43%

Record high61° (2021)

Record low12° (1988)

Sun, 1344° / 35°

0.1

44 °

Holtsville, Sunday, 13 December

Climate normal for this date — 60-year average.

Average high44°

Average low35°

Average precipitation0.1 in

Chance of precipitation35%

Record high58° (2020)

Record low12° (1960)

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.