Weather in West Islip, NY
West Islip, Friday, 30 October, 10:57
Clear. Feels like 67°. High 67°, low 49°.
Monthly outlook for West Islip, NY: average high 57.7°, average low 46.9°. That is 1.4° above the climate normal for October. Precipitation is expected on 4 days (about 1.1 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 4 November (67.9°), the coolest 1 November (40.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 30 October – 8 November | 61.8° | 56.5° | +2.9° |
| 9 November – 18 November | 50.9° | 52.4° | -0.9° |
| 19 November – 28 November | at normal | 49.8° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Bay Shore (3 mi).
0West Islip, Saturday, 31 October
Clear. High 57°, low 45°.
0
West Islip, Sunday, 1 November
Overcast. High 58°, low 40°.
0West Islip, Monday, 2 November
Overcast. High 62°, low 46°.
0West Islip, Tuesday, 3 November
Overcast. High 67°, low 50°.
0West Islip, Wednesday, 4 November
Overcast. High 68°, low 53°.
0.29
West Islip, Thursday, 5 November
Rain. High 65°, low 60°.
0.29West Islip, Friday, 6 November
Rain. High 63°, low 59°.
0.09West Islip, Saturday, 7 November
Light rain. High 59°, low 48°.
0West Islip, Sunday, 8 November
Clear. High 50°, low 41°.
0West Islip, Monday, 9 November
Clear. High 52°, low 42°.
0West Islip, Tuesday, 10 November
Overcast. High 51°, low 44°.
0.45West Islip, Wednesday, 11 November
Light rain. High 46°, low 44°.
0.01West Islip, Thursday, 12 November
Light rain. High 50°, low 43°.
0West Islip, Friday, 13 November
Clear. High 52°, low 42°.
0
West Islip, Saturday, 14 November
Mostly clear. High 54°, low 43°.
0.12
West Islip, Sunday, 15 November
Climate normal for this date — 60-year average.
0.14West Islip, Monday, 16 November
Climate normal for this date — 60-year average.
0.14West Islip, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.08
West Islip, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.08West Islip, Thursday, 19 November
Climate normal for this date — 60-year average.
0.12West Islip, Friday, 20 November
Climate normal for this date — 60-year average.
0.11West Islip, Saturday, 21 November
Climate normal for this date — 60-year average.
0.16West Islip, Sunday, 22 November
Climate normal for this date — 60-year average.
0.12West Islip, Monday, 23 November
Climate normal for this date — 60-year average.
0.09West Islip, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.14West Islip, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.21West Islip, Thursday, 26 November
Climate normal for this date — 60-year average.
0.13West Islip, Friday, 27 November
Climate normal for this date — 60-year average.
0.16West Islip, Saturday, 28 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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