Weather in Stony Brook, NY
Stony Brook, Sunday, 25 October, 23:55
Clear. Feels like 48°. High 66°, low 34°.
Monthly outlook for Stony Brook, NY: average high 56.7°, average low 46.3°. That is 0.1° above the climate normal for October. Precipitation is expected on 5 days (about 1.4 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 26 October (67.9°), the coolest 25 October (33.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 25 October – 3 November | 61° | 57.6° | +1.8° |
| 4 November – 13 November | 49.6° | 54° | -2.4° |
| 14 November – 23 November | at normal | 49.8° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Stony Brook University (0 mi).
0
Stony Brook, Monday, 26 October
Clear. High 68°, low 39°.
0Stony Brook, Tuesday, 27 October
Clear. High 58°, low 43°.
0
Stony Brook, Wednesday, 28 October
Partly cloudy. High 56°, low 49°.
0
Stony Brook, Thursday, 29 October
Overcast. High 61°, low 54°.
0Stony Brook, Friday, 30 October
Clear. High 67°, low 57°.
0Stony Brook, Saturday, 31 October
Overcast. High 57°, low 53°.
0Stony Brook, Sunday, 1 November
Overcast. High 58°, low 53°.
0.72
Stony Brook, Monday, 2 November
Rain. High 59°, low 56°.
0.38Stony Brook, Tuesday, 3 November
Rain. High 59°, low 50°.
0.07Stony Brook, Wednesday, 4 November
Light rain. High 48°, low 43°.
0Stony Brook, Thursday, 5 November
Overcast. High 47°, low 41°.
0Stony Brook, Friday, 6 November
Overcast. High 47°, low 42°.
0Stony Brook, Saturday, 7 November
Clear. High 51°, low 42°.
0.06Stony Brook, Sunday, 8 November
Light rain. High 55°, low 48°.
0.21Stony Brook, Monday, 9 November
Light rain. High 51°, low 38°.
0.17
Stony Brook, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.15Stony Brook, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.16Stony Brook, Thursday, 12 November
Climate normal for this date — 60-year average.
0.22Stony Brook, Friday, 13 November
Climate normal for this date — 60-year average.
0.11Stony Brook, Saturday, 14 November
Climate normal for this date — 60-year average.
0.12Stony Brook, Sunday, 15 November
Climate normal for this date — 60-year average.
0.14Stony Brook, Monday, 16 November
Climate normal for this date — 60-year average.
0.15Stony Brook, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.08Stony Brook, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.07Stony Brook, Thursday, 19 November
Climate normal for this date — 60-year average.
0.13Stony Brook, Friday, 20 November
Climate normal for this date — 60-year average.
0.11Stony Brook, Saturday, 21 November
Climate normal for this date — 60-year average.
0.16Stony Brook, Sunday, 22 November
Climate normal for this date — 60-year average.
0.13Stony Brook, Monday, 23 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 Stony Brook, 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 Stony Brook, 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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