Weather in Locust Valley, NY
Locust Valley, Thursday, 29 October, 16:45
Clear. Feels like 65°. High 67°, low 44°.
Monthly outlook for Locust Valley, NY: average high 59.9°, average low 48.8°. That is 2.6° above the climate normal for October. Precipitation is expected on 5 days (about 3.6 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 30 October (70°), the coolest 1 November (42.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 29 October – 7 November | 62.5° | 56.6° | +3.3° |
| 8 November – 17 November | 55.6° | 52.2° | +1.9° |
| 18 November – 27 November | at normal | 49.1° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Greenvale (5 mi).
0Locust Valley, Friday, 30 October
Clear. High 70°, low 48°.
0Locust Valley, Saturday, 31 October
Clear. High 57°, low 43°.
0
Locust Valley, Sunday, 1 November
Overcast. High 58°, low 43°.
0Locust Valley, Monday, 2 November
Overcast. High 64°, low 48°.
0Locust Valley, Tuesday, 3 November
Overcast. High 68°, low 52°.
0Locust Valley, Wednesday, 4 November
Overcast. High 58°, low 55°.
0.16
Locust Valley, Thursday, 5 November
Light rain. High 65°, low 58°.
0.96Locust Valley, Friday, 6 November
Heavy rain. High 65°, low 48°.
0Locust Valley, Saturday, 7 November
Clear. High 52°, low 43°.
0
Locust Valley, Sunday, 8 November
Mostly clear. High 58°, low 46°.
0Locust Valley, Monday, 9 November
Overcast. High 59°, low 51°.
1.53Locust Valley, Tuesday, 10 November
Heavy rain. High 59°, low 54°.
0.72Locust Valley, Wednesday, 11 November
Rain. High 53°, low 49°.
0Locust Valley, Thursday, 12 November
Mostly clear. High 53°, low 47°.
0.24Locust Valley, Friday, 13 November
Light rain. High 51°, low 50°.
0.09
Locust Valley, Saturday, 14 November
Climate normal for this date — 60-year average.
0.1
Locust Valley, Sunday, 15 November
Climate normal for this date — 60-year average.
0.11Locust Valley, Monday, 16 November
Climate normal for this date — 60-year average.
0.11Locust Valley, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.07Locust Valley, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.08Locust Valley, Thursday, 19 November
Climate normal for this date — 60-year average.
0.12Locust Valley, Friday, 20 November
Climate normal for this date — 60-year average.
0.11Locust Valley, Saturday, 21 November
Climate normal for this date — 60-year average.
0.13Locust Valley, Sunday, 22 November
Climate normal for this date — 60-year average.
0.11Locust Valley, Monday, 23 November
Climate normal for this date — 60-year average.
0.09Locust Valley, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.13Locust Valley, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.19Locust Valley, Thursday, 26 November
Climate normal for this date — 60-year average.
0.13Locust Valley, Friday, 27 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 Locust Valley, 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 Locust Valley, 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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