Weather in West Islip, NY
West Islip, Thursday, 29 October, 03:04
Clear. Feels like 58°. High 67°, low 49°.
Monthly outlook for West Islip, NY: average high 60.6°, average low 51.5°. That is 2.8° 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 (70.7°), the coolest 1 November (41.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 29 October – 7 November | 63.5° | 56.8° | +3.7° |
| 8 November – 17 November | 55.9° | 52.8° | +1.7° |
| 18 November – 27 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).
0.01
West Islip, Friday, 30 October
Light rain. High 71°, low 51°.
0
West Islip, Saturday, 31 October
Mostly clear. High 56°, low 45°.
0
West Islip, Sunday, 1 November
Clear. High 59°, low 41°.
0
West Islip, Monday, 2 November
Partly cloudy. High 65°, low 48°.
0West Islip, Tuesday, 3 November
Light rain. High 65°, low 52°.
0.07West Islip, Wednesday, 4 November
Light rain. High 58°, low 55°.
0
West Islip, Thursday, 5 November
Overcast. High 64°, low 59°.
1.09West Islip, Friday, 6 November
Heavy rain. High 64°, low 61°.
0.01West Islip, Saturday, 7 November
Light rain. High 67°, low 57°.
0.09West Islip, Sunday, 8 November
Light rain. High 55°, low 50°.
1.21West Islip, Monday, 9 November
Rain. High 54°, low 50°.
0.02West Islip, Tuesday, 10 November
Light rain. High 59°, low 52°.
0West Islip, Wednesday, 11 November
Partly cloudy. High 56°, low 51°.
0.03West Islip, Thursday, 12 November
Light rain. High 58°, low 52°.
0.18West Islip, Friday, 13 November
Light rain. High 54°, low 51°.
0.11West Islip, Saturday, 14 November
Climate normal for this date — 60-year average.
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.
0.08West 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.
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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