Weather in Stony Brook, NY
Stony Brook, Sunday, 25 October, 02:55
Clear. Feels like 39°. High 65°, low 38°.
Monthly outlook for Stony Brook, NY: average high 60.3°, average low 50.4°. That is 2° above the climate normal for October. Precipitation is expected on 4 days (about 1.3 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 30 October (67°), the coolest 25 October (38.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 25 October – 3 November | 61.9° | 57.6° | +2.4° |
| 4 November – 13 November | 57.6° | 54° | +2° |
| 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 66°, low 40°.
0Stony Brook, Tuesday, 27 October
Clear. High 60°, low 51°.
0Stony Brook, Wednesday, 28 October
Clear. High 55°, low 47°.
0Stony Brook, Thursday, 29 October
Clear. High 62°, low 52°.
0
Stony Brook, Friday, 30 October
Partly cloudy. High 67°, low 58°.
0Stony Brook, Saturday, 31 October
Clear. High 59°, low 54°.
0Stony Brook, Sunday, 1 November
Partly cloudy. High 63°, low 55°.
0.52
Stony Brook, Monday, 2 November
Rain. High 61°, low 60°.
0Stony Brook, Tuesday, 3 November
Clear. High 62°, low 53°.
0.1Stony Brook, Wednesday, 4 November
Light rain. High 56°, low 49°.
0.6Stony Brook, Thursday, 5 November
Rain. High 63°, low 58°.
0
Stony Brook, Friday, 6 November
Overcast. High 54°, low 47°.
0Stony Brook, Saturday, 7 November
Overcast. High 57°, low 46°.
0.04Stony Brook, Sunday, 8 November
Light rain. High 64°, low 53°.
0Stony Brook, Monday, 9 November
Partly cloudy. High 51°, low 46°.
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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