Weather in Locust Valley, NY
Locust Valley, Sunday, 25 October, 12:14
Clear. Feels like 59°. High 63°, low 34°.
Monthly outlook for Locust Valley, NY: average high 63.5°, average low 52.6°. That is 3.7° above the climate normal for October. Precipitation is expected on 5 days (about 1.7 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 30 October (70.4°), the coolest 25 October (34.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 25 October – 3 November | 64.3° | 57.9° | +3.6° |
| 4 November – 13 November | 62.2° | 54° | +4.5° |
| 14 November – 23 November | at normal | 49.8° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Greenvale (5 mi).
0
Locust Valley, Monday, 26 October
Mostly clear. High 68°, low 41°.
0Locust Valley, Tuesday, 27 October
Clear. High 57°, low 47°.
0Locust Valley, Wednesday, 28 October
Clear. High 56°, low 42°.
0
Locust Valley, Thursday, 29 October
Overcast. High 64°, low 51°.
0
Locust Valley, Friday, 30 October
Partly cloudy. High 70°, low 55°.
0Locust Valley, Saturday, 31 October
Mostly clear. High 63°, low 55°.
0.09
Locust Valley, Sunday, 1 November
Light rain. High 67°, low 59°.
0Locust Valley, Monday, 2 November
Light rain. High 67°, low 60°.
0.02Locust Valley, Tuesday, 3 November
Light rain. High 68°, low 62°.
0.16Locust Valley, Wednesday, 4 November
Light rain. High 64°, low 62°.
0.64Locust Valley, Thursday, 5 November
Rain. High 67°, low 58°.
0Locust Valley, Friday, 6 November
Overcast. High 61°, low 55°.
0Locust Valley, Saturday, 7 November
Overcast. High 57°, low 53°.
0.12Locust Valley, Sunday, 8 November
Rain. High 60°, low 52°.
0.68Locust Valley, Monday, 9 November
Heavy rain. High 64°, low 57°.
0.16
Locust Valley, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.14Locust Valley, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.15Locust Valley, Thursday, 12 November
Climate normal for this date — 60-year average.
0.2Locust Valley, Friday, 13 November
Climate normal for this date — 60-year average.
0.09Locust Valley, Saturday, 14 November
Climate normal for this date — 60-year average.
0.1Locust 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.
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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