Weather in Islip Terrace, NY
Islip Terrace, Thursday, 29 October, 01:22
Clear. Feels like 54°. High 67°, low 45°.
Monthly outlook for Islip Terrace, NY: average high 60.6°, average low 51.3°. That is 2.7° above the climate normal for October. Precipitation is expected on 5 days (about 2.7 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 30 October (70.5°), the coolest 1 November (42.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 29 October – 7 November | 63.4° | 56.8° | +3.6° |
| 8 November – 17 November | 55.9° | 52.8° | +1.7° |
| 18 November – 27 November | at normal | 49.9° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Islip (1 mi).
0.01
Islip Terrace, Friday, 30 October
Light rain. High 70°, low 51°.
0
Islip Terrace, Saturday, 31 October
Mostly clear. High 55°, low 46°.
0
Islip Terrace, Sunday, 1 November
Clear. High 58°, low 42°.
0
Islip Terrace, Monday, 2 November
Partly cloudy. High 65°, low 48°.
0Islip Terrace, Tuesday, 3 November
Partly cloudy. High 65°, low 52°.
0.09Islip Terrace, Wednesday, 4 November
Light rain. High 58°, low 54°.
0.01Islip Terrace, Thursday, 5 November
Light rain. High 64°, low 59°.
1.07Islip Terrace, Friday, 6 November
Heavy rain. High 64°, low 61°.
0.01Islip Terrace, Saturday, 7 November
Light rain. High 67°, low 56°.
0.11Islip Terrace, Sunday, 8 November
Light rain. High 55°, low 50°.
1.18Islip Terrace, Monday, 9 November
Rain. High 54°, low 49°.
0.02Islip Terrace, Tuesday, 10 November
Light rain. High 58°, low 52°.
0Islip Terrace, Wednesday, 11 November
Partly cloudy. High 56°, low 52°.
0.03Islip Terrace, Thursday, 12 November
Light rain. High 57°, low 52°.
0.2Islip Terrace, Friday, 13 November
Rain. High 55°, low 51°.
0.11Islip Terrace, Saturday, 14 November
Climate normal for this date — 60-year average.
0.12
Islip 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.
0.1Islip Terrace, Saturday, 21 November
Climate normal for this date — 60-year average.
0.16Islip Terrace, Sunday, 22 November
Climate normal for this date — 60-year average.
0.13Islip Terrace, Monday, 23 November
Climate normal for this date — 60-year average.
0.09Islip Terrace, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.14Islip Terrace, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.21Islip Terrace, Thursday, 26 November
Climate normal for this date — 60-year average.
0.13Islip Terrace, Friday, 27 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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