Weather in Setauket, NY
Setauket, Sunday, 11 October, 00:08
Partly cloudy. Feels like 54°. High 67°, low 50°.
Monthly outlook for Setauket, NY: average high 59.9°, average low 50.3°. That is 0.5° below the climate normal for October. Precipitation is expected on 5 days (about 1.5 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 14 October (71°), the coolest 18 October (40.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 11 October – 20 October | 62.6° | 61.7° | +0.5° |
| 21 October – 30 October | 55.6° | 58.7° | -1.7° |
| 31 October – 9 November | at normal | 55.9° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Stony Brook University (3 mi).
0.56
Setauket, Monday, 12 October
Heavy rain. High 70°, low 50°.
0
Setauket, Tuesday, 13 October
Clear. High 67°, low 62°.
0Setauket, Wednesday, 14 October
Clear. High 71°, low 66°.
0Setauket, Thursday, 15 October
Clear. High 64°, low 57°.
0.07Setauket, Friday, 16 October
Light rain. High 66°, low 53°.
0.07Setauket, Saturday, 17 October
Light rain. High 66°, low 49°.
0Setauket, Sunday, 18 October
Clear. High 48°, low 40°.
0Setauket, Monday, 19 October
Clear. High 52°, low 43°.
0Setauket, Tuesday, 20 October
Clear. High 55°, low 46°.
0Setauket, Wednesday, 21 October
Clear. High 57°, low 49°.
0
Setauket, Thursday, 22 October
Overcast. High 62°, low 55°.
0
Setauket, Friday, 23 October
Partly cloudy. High 63°, low 51°.
0Setauket, Saturday, 24 October
Clear. High 50°, low 45°.
0.04Setauket, Sunday, 25 October
Light rain. High 52°, low 43°.
0.04Setauket, Monday, 26 October
Light rain. High 49°, low 45°.
0.16Setauket, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.17
Setauket, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.19Setauket, Thursday, 29 October
Climate normal for this date — 60-year average.
0.12Setauket, Friday, 30 October
Climate normal for this date — 60-year average.
0.06Setauket, Saturday, 31 October
Climate normal for this date — 60-year average.
0.14Setauket, Sunday, 1 November
Climate normal for this date — 60-year average.
0.08Setauket, Monday, 2 November
Climate normal for this date — 60-year average.
0.12Setauket, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.05Setauket, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.15Setauket, Thursday, 5 November
Climate normal for this date — 60-year average.
0.11Setauket, Friday, 6 November
Climate normal for this date — 60-year average.
0.1Setauket, Saturday, 7 November
Climate normal for this date — 60-year average.
0.17Setauket, Sunday, 8 November
Climate normal for this date — 60-year average.
0.1Setauket, Monday, 9 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 Setauket, 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 Setauket, 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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