Weather in Islip Terrace, NY
Islip Terrace, Wednesday, 28 October, 18:30
Overcast. Feels like 54°. High 60°, low 38°.
Monthly outlook for Islip Terrace, NY: average high 60°, average low 48.5°. That is 2.2° above the climate normal for October. Precipitation is expected on 4 days (about 1.8 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 30 October (69.4°), the coolest 28 October (38.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 28 October – 6 November | 62.5° | 57.1° | +3° |
| 7 November – 16 November | 55.7° | 53.3° | +1.4° |
| 17 November – 26 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
Islip Terrace, Thursday, 29 October
Clear. High 67°, low 45°.
0Islip Terrace, Friday, 30 October
Clear. High 69°, low 50°.
0Islip Terrace, Saturday, 31 October
Clear. High 56°, low 46°.
0Islip Terrace, Sunday, 1 November
Clear. High 60°, low 42°.
0Islip Terrace, Monday, 2 November
Clear. High 65°, low 47°.
0Islip Terrace, Tuesday, 3 November
Overcast. High 60°, low 52°.
0Islip Terrace, Wednesday, 4 November
Overcast. High 59°, low 55°.
0.85
Islip Terrace, Thursday, 5 November
Heavy rain. High 63°, low 56°.
0.58Islip Terrace, Friday, 6 November
Heavy rain. High 65°, low 58°.
0Islip Terrace, Saturday, 7 November
Clear. High 57°, low 51°.
0Islip Terrace, Sunday, 8 November
Overcast. High 56°, low 47°.
0Islip Terrace, Monday, 9 November
Overcast. High 54°, low 47°.
0.26Islip Terrace, Tuesday, 10 November
Light rain. High 55°, low 53°.
0.13Islip Terrace, Wednesday, 11 November
Light rain. High 62°, low 46°.
0Islip Terrace, Thursday, 12 November
Clear. High 50°, low 41°.
0.23
Islip Terrace, Friday, 13 November
Climate normal for this date — 60-year average.
0.11
Islip 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.
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.
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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