Weather in Islandia, NY
Islandia, Sunday, 1 November, 12:00
Overcast. Feels like 53°. High 57°, low 35°.
Monthly outlook for Islandia, NY: average high 59.7°, average low 48.1°. That is 2.9° above the climate normal for November. Precipitation is expected on 5 days (about 1.5 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 4 November (69.2°), the coolest 1 November (34.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 1 November – 10 November | 62.7° | 56° | +3.7° |
| 11 November – 20 November | 54.6° | 51.3° | +1.8° |
| 21 November – 30 November | at normal | 48.9° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Brentwood (5 mi).
0Islandia, Monday, 2 November
Overcast. High 66°, low 42°.
0Islandia, Tuesday, 3 November
Overcast. High 66°, low 44°.
0
Islandia, Wednesday, 4 November
Clear. High 69°, low 53°.
0.07
Islandia, Thursday, 5 November
Light rain. High 69°, low 59°.
0.68Islandia, Friday, 6 November
Rain. High 65°, low 61°.
0.52Islandia, Saturday, 7 November
Rain. High 63°, low 57°.
0.06Islandia, Sunday, 8 November
Light rain. High 61°, low 54°.
0.01Islandia, Monday, 9 November
Light rain. High 56°, low 51°.
0Islandia, Tuesday, 10 November
Clear. High 56°, low 47°.
0Islandia, Wednesday, 11 November
Clear. High 52°, low 43°.
0.15Islandia, Thursday, 12 November
Rain. High 52°, low 37°.
0
Islandia, Friday, 13 November
Partly cloudy. High 45°, low 35°.
0Islandia, Saturday, 14 November
Clear. High 58°, low 45°.
0.02Islandia, Sunday, 15 November
Light rain. High 59°, low 51°.
0Islandia, Monday, 16 November
Overcast. High 63°, low 55°.
0.14
Islandia, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.08Islandia, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.08Islandia, Thursday, 19 November
Climate normal for this date — 60-year average.
0.12Islandia, Friday, 20 November
Climate normal for this date — 60-year average.
0.1Islandia, Saturday, 21 November
Climate normal for this date — 60-year average.
0.17Islandia, Sunday, 22 November
Climate normal for this date — 60-year average.
0.12Islandia, Monday, 23 November
Climate normal for this date — 60-year average.
0.09Islandia, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.14Islandia, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.21Islandia, Thursday, 26 November
Climate normal for this date — 60-year average.
0.13Islandia, Friday, 27 November
Climate normal for this date — 60-year average.
0.16Islandia, Saturday, 28 November
Climate normal for this date — 60-year average.
0.11Islandia, Sunday, 29 November
Climate normal for this date — 60-year average.
0.14Islandia, Monday, 30 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 Islandia, 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 Islandia, 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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