Weather in Mount Sinai, NY
Mount Sinai, Wednesday, 28 October, 12:36
Partly cloudy. Feels like 55°. High 57°, low 37°.
Monthly outlook for Mount Sinai, NY: average high 57.2°, average low 48.3°. That is 0.9° above the climate normal for October. Precipitation is expected on 2 days (about 2.0 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 29 October (65.7°), the coolest 28 October (37.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 28 October – 6 November | 60.6° | 56.7° | +2.2° |
| 7 November – 16 November | 51.4° | 52.6° | -0.7° |
| 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 66°, low 44°.
0Mount Sinai, Friday, 30 October
Clear. High 65°, low 49°.
0
Mount Sinai, Saturday, 31 October
Mostly clear. High 55°, low 50°.
0
Mount Sinai, Sunday, 1 November
Overcast. High 59°, low 48°.
0Mount Sinai, Monday, 2 November
Clear. High 63°, low 53°.
0.01
Mount Sinai, Tuesday, 3 November
Light rain. High 59°, low 53°.
0.01Mount Sinai, Wednesday, 4 November
Light rain. High 55°, low 50°.
0.01Mount Sinai, Thursday, 5 November
Light rain. High 63°, low 55°.
0.41Mount Sinai, Friday, 6 November
Rain. High 64°, low 55°.
0Mount Sinai, Saturday, 7 November
Mostly clear. High 53°, low 46°.
0Mount Sinai, Sunday, 8 November
Partly cloudy. High 47°, low 44°.
0Mount Sinai, Monday, 9 November
Clear. High 47°, low 43°.
0Mount Sinai, Tuesday, 10 November
Clear. High 49°, low 44°.
0Mount Sinai, Wednesday, 11 November
Overcast. High 56°, low 49°.
1.57Mount Sinai, Thursday, 12 November
Rain. High 56°, low 52°.
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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