Weather in Islip Terrace, NY
Islip Terrace, Sunday, 25 October, 18:51
Clear. Feels like 54°. High 66°, low 34°.
Monthly outlook for Islip Terrace, NY: average high 59.6°, average low 46.8°. That is 1.4° above the climate normal for October. Precipitation is expected on 2 days (about 1.4 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 30 October (71.4°), the coolest 25 October (34.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 25 October – 3 November | 61.4° | 58° | +1.9° |
| 4 November – 13 November | 56.5° | 54.5° | +1.1° |
| 14 November – 23 November | at normal | 50.6° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Islip (1 mi).
0
Islip Terrace, Monday, 26 October
Clear. High 68°, low 38°.
0Islip Terrace, Tuesday, 27 October
Clear. High 54°, low 44°.
0Islip Terrace, Wednesday, 28 October
Clear. High 58°, low 42°.
0
Islip Terrace, Thursday, 29 October
Overcast. High 63°, low 48°.
0Islip Terrace, Friday, 30 October
Clear. High 71°, low 52°.
0Islip Terrace, Saturday, 31 October
Clear. High 56°, low 49°.
0Islip Terrace, Sunday, 1 November
Overcast. High 58°, low 51°.
0Islip Terrace, Monday, 2 November
Overcast. High 63°, low 52°.
0.02
Islip Terrace, Tuesday, 3 November
Light rain. High 56°, low 48°.
1.02Islip Terrace, Wednesday, 4 November
Rain. High 50°, low 46°.
0.03Islip Terrace, Thursday, 5 November
Light rain. High 54°, low 48°.
0
Islip Terrace, Friday, 6 November
Mostly clear. High 59°, low 48°.
0Islip Terrace, Saturday, 7 November
Overcast. High 58°, low 49°.
0Islip Terrace, Sunday, 8 November
Overcast. High 59°, low 50°.
0.36Islip Terrace, Monday, 9 November
Rain. High 59°, low 50°.
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.
0.11
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.
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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