As of 17:05 EST

Weather in Islip Terrace, NY

63°

Islip Terrace, Wednesday, 4 November, 17:05

Mostly clear. Feels like 63°. High 73°, low 50°.

Pressure30.09 inHg

Wind10.4 mph S

Humidity82%

Visibility6.2 mi

Dew point58°

See detailed hourly forecast

Monthly outlook for Islip Terrace, NY: average high 55.4°, average low 45.5°. That is 1.2° above the climate normal for November. Precipitation is expected on 3 days (about 1.4 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 4 November (72.7°), the coolest 16 November (37.7°).

55.4°/45.5°

Average high / low

+1.2°

Above normal

3 / 5

Wet days / normal

1.4 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
4 November – 13 November	60°	54.5°	+3°
14 November – 23 November	47.8°	50.6°	-1.5°
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, 0572° / 58°

0.07

72 °

Islip Terrace, Thursday, 5 November

Light rain. High 72°, low 58°.

Pressure29.91 inHg

Wind10.6 mph S

Humidity74%

Visibility6.2 mi

Dew point61°

Fri, 0667° / 60°

0.88

67 °

Islip Terrace, Friday, 6 November

Heavy rain. High 67°, low 60°.

Pressure29.88 inHg

Wind4.6 mph S

Humidity95%

Visibility1.6 mi

Dew point65°

Sat, 0763° / 52°

0.46

63 °

Islip Terrace, Saturday, 7 November

Heavy rain. High 63°, low 52°.

Pressure29.80 inHg

Wind3.7 mph N

Humidity85%

Visibility6.2 mi

Dew point56°

Sun, 0858° / 48°

58 °

Islip Terrace, Sunday, 8 November

Clear. High 58°, low 48°.

Pressure29.80 inHg

Wind11.9 mph W

Humidity59%

Visibility6.2 mi

Dew point43°

Mon, 0952° / 46°

52 °

Islip Terrace, Monday, 9 November

Partly cloudy. High 52°, low 46°.

Pressure29.77 inHg

Wind15.6 mph NW

Humidity58%

Visibility—

Dew point35°

Tue, 1057° / 43°

57 °

Islip Terrace, Tuesday, 10 November

Overcast. High 57°, low 43°.

Pressure30.00 inHg

Wind10 mph SW

Humidity57%

Visibility—

Dew point34°

Wed, 1161° / 51°

61 °

Islip Terrace, Wednesday, 11 November

Clear. High 61°, low 51°.

Pressure29.80 inHg

Wind8.6 mph NW

Humidity39%

Visibility—

Dew point32°

Thu, 1252° / 42°

52 °

Islip Terrace, Thursday, 12 November

Overcast. High 52°, low 42°.

Pressure29.68 inHg

Wind14.1 mph NW

Humidity51%

Visibility—

Dew point33°

Fri, 1344° / 39°

44 °

Islip Terrace, Friday, 13 November

Clear. High 44°, low 39°.

Pressure29.80 inHg

Wind11.5 mph W

Humidity46%

Visibility—

Dew point22°

Sat, 1446° / 40°

46 °

Islip Terrace, Saturday, 14 November

Clear. High 46°, low 40°.

Pressure29.85 inHg

Wind6.5 mph W

Humidity41%

Visibility—

Dew point21°

Sun, 1547° / 41°

47 °

Islip Terrace, Sunday, 15 November

Overcast. High 47°, low 41°.

Pressure29.80 inHg

Wind11.4 mph NW

Humidity50%

Visibility—

Dew point27°

Mon, 1646° / 38°

46 °

Islip Terrace, Monday, 16 November

Overcast. High 46°, low 38°.

Pressure29.97 inHg

Wind10.8 mph N

Humidity60%

Visibility—

Dew point28°

Tue, 1748° / 40°

48 °

Islip Terrace, Tuesday, 17 November

Partly cloudy. High 48°, low 40°.

Pressure30.27 inHg

Wind9.1 mph N

Humidity58%

Visibility—

Dew point29°

Wed, 1848° / 40°

48 °

Islip Terrace, Wednesday, 18 November

Clear. High 48°, low 40°.

Pressure30.42 inHg

Wind7.4 mph N

Humidity52%

Visibility—

Dew point27°

Thu, 1952° / 42°

52 °

Islip Terrace, Thursday, 19 November

Clear. High 52°, low 42°.

Pressure30.30 inHg

Wind4.7 mph W

Humidity49%

Visibility—

Dew point29°

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.