As of 05:40 EST

Weather in Islip Terrace, NY

54°

Islip Terrace, Wednesday, 4 November, 05:40

Clear. Feels like 54°. High 72°, low 53°.

Pressure30.18 inHg

Wind0 mph N

Humidity94%

Visibility6.2 mi

Dew point53°

See detailed hourly forecast

Monthly outlook for Islip Terrace, NY: average high 57.2°, average low 46.9°. That is 2.1° above the climate normal for November. Precipitation is expected on 4 days (about 0.5 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 5 November (72.7°), the coolest 18 November (37.2°).

57.2°/46.9°

Average high / low

+2.1°

Above normal

4 / 5

Wet days / normal

0.5 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
4 November – 13 November	61.7°	54.5°	+4°
14 November – 23 November	49.8°	50.6°	-0.5°
24 November – 3 December	at normal	48.8°	—

November records over 66 years

75.2°1 November 2024All-time high

19.8°23 November 2018All-time low

Climate normals and records are computed from the nearest reference point — Islip (1 mi).

Thu, 0573° / 58°

0.11

73 °

Islip Terrace, Thursday, 5 November

Rain. High 73°, low 58°.

Pressure29.91 inHg

Wind10.8 mph S

Humidity71%

Visibility6.2 mi

Dew point60°

Fri, 0671° / 62°

0.06

71 °

Islip Terrace, Friday, 6 November

Light rain. High 71°, low 62°.

Pressure29.88 inHg

Wind4.5 mph S

Humidity80%

Visibility6.2 mi

Dew point63°

Sat, 0767° / 53°

0.04

67 °

Islip Terrace, Saturday, 7 November

Light rain. High 67°, low 53°.

Pressure29.83 inHg

Wind5.7 mph NW

Humidity59%

Visibility6.2 mi

Dew point51°

Sun, 0856° / 47°

0.11

56 °

Islip Terrace, Sunday, 8 November

Light rain. High 56°, low 47°.

Pressure29.85 inHg

Wind13 mph NW

Humidity63%

Visibility—

Dew point39°

Mon, 0953° / 45°

0.01

53 °

Islip Terrace, Monday, 9 November

Light rain. High 53°, low 45°.

Pressure29.77 inHg

Wind16.3 mph W

Humidity51%

Visibility—

Dew point34°

Tue, 1064° / 52°

64 °

Islip Terrace, Tuesday, 10 November

Clear. High 64°, low 52°.

Pressure30.03 inHg

Wind12.5 mph W

Humidity43%

Visibility—

Dew point35°

Wed, 1159° / 50°

59 °

Islip Terrace, Wednesday, 11 November

Clear. High 59°, low 50°.

Pressure29.97 inHg

Wind12 mph NE

Humidity53%

Visibility—

Dew point40°

Thu, 1250° / 41°

50 °

Islip Terrace, Thursday, 12 November

Clear. High 50°, low 41°.

Pressure29.97 inHg

Wind13.2 mph N

Humidity38%

Visibility—

Dew point20°

Fri, 1353° / 45°

0.02

53 °

Islip Terrace, Friday, 13 November

Light rain. High 53°, low 45°.

Pressure29.68 inHg

Wind13.9 mph W

Humidity55%

Visibility—

Dew point33°

Sat, 1447° / 41°

47 °

Islip Terrace, Saturday, 14 November

Clear. High 47°, low 41°.

Pressure29.88 inHg

Wind13.4 mph NW

Humidity49%

Visibility—

Dew point25°

Sun, 1549° / 39°

49 °

Islip Terrace, Sunday, 15 November

Clear. High 49°, low 39°.

Pressure30.18 inHg

Wind10.3 mph N

Humidity46%

Visibility—

Dew point24°

Mon, 1652° / 43°

0.15

52 °

Islip Terrace, Monday, 16 November

Light rain. High 52°, low 43°.

Pressure29.94 inHg

Wind14.3 mph NW

Humidity40%

Visibility—

Dew point24°

Tue, 1744° / 39°

44 °

Islip Terrace, Tuesday, 17 November

Clear. High 44°, low 39°.

Pressure29.88 inHg

Wind13.4 mph NW

Humidity53%

Visibility—

Dew point26°

Wed, 1849° / 37°

49 °

Islip Terrace, Wednesday, 18 November

Clear. High 49°, low 37°.

Pressure30.00 inHg

Wind13.5 mph W

Humidity53%

Visibility—

Dew point25°

Thu, 1957° / 46°

57 °

Islip Terrace, Thursday, 19 November

Clear. High 57°, low 46°.

Pressure29.71 inHg

Wind17.1 mph SW

Humidity49%

Visibility—

Dew point33°

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

Fri, 2051° / 41°

0.12

51 °

Islip Terrace, Friday, 20 November

Climate normal for this date — 60-year average.

Average high51°

Average low41°

Average precipitation0.12 in

Chance of precipitation32%

Record high66° (1985)

Record low29° (1984)

Sat, 2150° / 40°

0.1

50 °

Islip Terrace, 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 low22° (1987)

Sun, 2249° / 40°

0.16

49 °

Islip Terrace, 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 low21° (2018)

Mon, 2348° / 39°

0.13

48 °

Islip Terrace, Monday, 23 November

Climate normal for this date — 60-year average.

Average high48°

Average low39°

Average precipitation0.13 in

Chance of precipitation23%

Record high64° (1992)

Record low20° (2018)

Tue, 2449° / 40°

0.09

49 °

Islip Terrace, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high49°

Average low40°

Average precipitation0.09 in

Chance of precipitation28%

Record high62° (1979)

Record low26° (2013)

Wed, 2549° / 40°

0.14

49 °

Islip Terrace, 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 low25° (2005)

Thu, 2651° / 41°

0.21

51 °

Islip Terrace, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high51°

Average low41°

Average precipitation0.21 in

Chance of precipitation43%

Record high63° (1979)

Record low29° (1978)

Fri, 2750° / 41°

0.13

50 °

Islip Terrace, Friday, 27 November

Climate normal for this date — 60-year average.

Average high50°

Average low41°

Average precipitation0.13 in

Chance of precipitation35%

Record high61° (1986)

Record low29° (1978)

Sat, 2851° / 41°

0.16

51 °

Islip Terrace, 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°

0.1

49 °

Islip Terrace, Sunday, 29 November

Climate normal for this date — 60-year average.

Average high49°

Average low40°

Average precipitation0.1 in

Chance of precipitation30%

Record high62° (2011)

Record low26° (2023)

Mon, 3047° / 38°

0.14

47 °

Islip Terrace, Monday, 30 November

Climate normal for this date — 60-year average.

Average high47°

Average low38°

Average precipitation0.14 in

Chance of precipitation35%

Record high63° (2020)

Record low26° (1976)

Tue, 0148° / 38°

0.14

48 °

Islip Terrace, 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 °

Islip Terrace, Wednesday, 2 December

Climate normal for this date — 60-year average.

Average high47°

Average low38°

Average precipitation0.14 in

Chance of precipitation33%

Record high58° (1982)

Record low22° (1971)

Thu, 0347° / 37°

0.15

47 °

Islip Terrace, 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)

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 Islip Terrace, 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 Islip Terrace, 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.