Weather in Islip Terrace, NY
Islip Terrace, Thursday, 22 October, 04:04
Clear. Feels like 49°. High 66°, low 49°.
Monthly outlook for Islip Terrace, NY: average high 59.8°, average low 48.5°. That is 1° above the climate normal for October. Precipitation is expected on 3 days (about 0.5 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 22 October (66.2°), the coolest 24 October (41.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 22 October – 31 October | 61.2° | 58.6° | +1.5° |
| 1 November – 10 November | 57.3° | 56.1° | +0.7° |
| 11 November – 20 November | at normal | 51.7° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Islip (1 mi).
0
Islip Terrace, Friday, 23 October
Clear. High 59°, low 46°.
0
Islip Terrace, Saturday, 24 October
Partly cloudy. High 58°, low 42°.
0Islip Terrace, Sunday, 25 October
Clear. High 61°, low 43°.
0Islip Terrace, Monday, 26 October
Clear. High 63°, low 42°.
0
Islip Terrace, Tuesday, 27 October
Mostly clear. High 62°, low 51°.
0
Islip Terrace, Wednesday, 28 October
Overcast. High 62°, low 54°.
0Islip Terrace, Thursday, 29 October
Mostly clear. High 59°, low 53°.
0Islip Terrace, Friday, 30 October
Clear. High 60°, low 49°.
0Islip Terrace, Saturday, 31 October
Clear. High 61°, low 50°.
0Islip Terrace, Sunday, 1 November
Clear. High 61°, low 50°.
0.05
Islip Terrace, Monday, 2 November
Light rain. High 59°, low 54°.
0.02Islip Terrace, Tuesday, 3 November
Light rain. High 55°, low 46°.
0Islip Terrace, Wednesday, 4 November
Clear. High 52°, low 43°.
0.36Islip Terrace, Thursday, 5 November
Rain. High 59°, low 52°.
0.05Islip Terrace, Friday, 6 November
Light rain. High 58°, low 52°.
0.1Islip Terrace, Saturday, 7 November
Climate normal for this date — 60-year average.
0.16Islip Terrace, Sunday, 8 November
Climate normal for this date — 60-year average.
0.1Islip Terrace, Monday, 9 November
Climate normal for this date — 60-year average.
0.17
Islip Terrace, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.15Islip Terrace, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.17Islip Terrace, Thursday, 12 November
Climate normal for this date — 60-year average.
0.23Islip Terrace, Friday, 13 November
Climate normal for this date — 60-year average.
0.11Islip Terrace, Saturday, 14 November
Climate normal for this date — 60-year average.
0.12Islip Terrace, Sunday, 15 November
Climate normal for this date — 60-year average.
0.15Islip Terrace, Monday, 16 November
Climate normal for this date — 60-year average.
0.14Islip Terrace, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.08Islip Terrace, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.07Islip Terrace, Thursday, 19 November
Climate normal for this date — 60-year average.
0.12Islip Terrace, Friday, 20 November
Climate normal for this date — 60-year average.
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.
Sun and moon today
Weather history
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