Weather in West Islip, NY
West Islip, Wednesday, 14 October, 08:33
Clear. Feels like 67°. High 76°, low 62°.
Monthly outlook for West Islip, NY: average high 59.7°, average low 48.2°. That is 0.4° below the climate normal for October. Precipitation is expected on 4 days (about 0.7 inches), against a normal of 5 days and 2.3 inches. The warmest day looks like 14 October (76.2°), the coolest 19 October (38.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 14 October – 23 October | 63.3° | 61.3° | +1.1° |
| 24 October – 2 November | 53.7° | 58.2° | -2.5° |
| 3 November – 12 November | at normal | 55.2° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Bay Shore (3 mi).
0
West Islip, Thursday, 15 October
Partly cloudy. High 62°, low 52°.
0.46
West Islip, Friday, 16 October
Heavy rain. High 72°, low 53°.
0.06West Islip, Saturday, 17 October
Light rain. High 65°, low 43°.
0West Islip, Sunday, 18 October
Clear. High 51°, low 40°.
0West Islip, Monday, 19 October
Clear. High 60°, low 39°.
0
West Islip, Tuesday, 20 October
Overcast. High 66°, low 56°.
0West Islip, Wednesday, 21 October
Clear. High 68°, low 57°.
0.08West Islip, Thursday, 22 October
Light rain. High 62°, low 50°.
0West Islip, Friday, 23 October
Clear. High 51°, low 44°.
0West Islip, Saturday, 24 October
Overcast. High 51°, low 42°.
0West Islip, Sunday, 25 October
Clear. High 60°, low 48°.
0.03West Islip, Monday, 26 October
Light rain. High 56°, low 50°.
0West Islip, Tuesday, 27 October
Clear. High 55°, low 45°.
0West Islip, Wednesday, 28 October
Overcast. High 50°, low 46°.
0
West Islip, Thursday, 29 October
Mostly clear. High 50°, low 44°.
0.11West Islip, Friday, 30 October
Climate normal for this date — 60-year average.
0.05West Islip, Saturday, 31 October
Climate normal for this date — 60-year average.
0.13West Islip, Sunday, 1 November
Climate normal for this date — 60-year average.
0.08West Islip, Monday, 2 November
Climate normal for this date — 60-year average.
0.11West Islip, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.06West Islip, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.14
West Islip, Thursday, 5 November
Climate normal for this date — 60-year average.
0.11West Islip, Friday, 6 November
Climate normal for this date — 60-year average.
0.1West Islip, Saturday, 7 November
Climate normal for this date — 60-year average.
0.16West Islip, Sunday, 8 November
Climate normal for this date — 60-year average.
0.1West Islip, Monday, 9 November
Climate normal for this date — 60-year average.
0.18West Islip, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.15West Islip, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.17West Islip, Thursday, 12 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 West Islip, 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 West Islip, 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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