Weather in Mount Sinai, NY
Mount Sinai, Wednesday, 28 October, 03:09
Clear. Feels like 35°. High 61°, low 38°.
Monthly outlook for Mount Sinai, NY: average high 57.5°, average low 49°. That is 1.1° above the climate normal for October. Precipitation is expected on 6 days (about 2.2 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 29 October (67.8°), the coolest 28 October (38.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 28 October – 6 November | 59.3° | 56.7° | +1.4° |
| 7 November – 16 November | 54.5° | 52.6° | +1.1° |
| 17 November – 26 November | at normal | 49.2° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Stony Brook University (6 mi).
0
Mount Sinai, Thursday, 29 October
Clear. High 68°, low 45°.
0Mount Sinai, Friday, 30 October
Clear. High 66°, low 53°.
0
Mount Sinai, Saturday, 31 October
Mostly clear. High 56°, low 50°.
0Mount Sinai, Sunday, 1 November
Clear. High 61°, low 47°.
0Mount Sinai, Monday, 2 November
Clear. High 61°, low 54°.
0.02
Mount Sinai, Tuesday, 3 November
Light rain. High 59°, low 48°.
0
Mount Sinai, Wednesday, 4 November
Overcast. High 51°, low 47°.
1.06Mount Sinai, Thursday, 5 November
Heavy rain. High 55°, low 51°.
0.34Mount Sinai, Friday, 6 November
Rain. High 54°, low 50°.
0.37Mount Sinai, Saturday, 7 November
Light rain. High 51°, low 48°.
0.05Mount Sinai, Sunday, 8 November
Light rain. High 52°, low 49°.
0.15Mount Sinai, Monday, 9 November
Rain. High 53°, low 49°.
0Mount Sinai, Tuesday, 10 November
Overcast. High 56°, low 51°.
0
Mount Sinai, Wednesday, 11 November
Partly cloudy. High 59°, low 53°.
0.17Mount Sinai, Thursday, 12 November
Light rain. High 57°, low 51°.
0.22
Mount Sinai, Friday, 13 November
Climate normal for this date — 60-year average.
0.11Mount Sinai, Saturday, 14 November
Climate normal for this date — 60-year average.
0.12Mount Sinai, Sunday, 15 November
Climate normal for this date — 60-year average.
0.14Mount Sinai, Monday, 16 November
Climate normal for this date — 60-year average.
0.15Mount Sinai, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.08Mount Sinai, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.07Mount Sinai, Thursday, 19 November
Climate normal for this date — 60-year average.
0.13Mount Sinai, Friday, 20 November
Climate normal for this date — 60-year average.
0.11Mount Sinai, Saturday, 21 November
Climate normal for this date — 60-year average.
0.16Mount Sinai, Sunday, 22 November
Climate normal for this date — 60-year average.
0.13Mount Sinai, Monday, 23 November
Climate normal for this date — 60-year average.
0.1Mount Sinai, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.15Mount Sinai, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.22Mount Sinai, Thursday, 26 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 Mount Sinai, 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 Mount Sinai, 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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