Weather in Locust Valley, NY
Locust Valley, Wednesday, 21 October, 00:12
Clear. Feels like 52°. High 63°, low 46°.
Monthly outlook for Locust Valley, NY: average high 57.9°, average low 45.5°. That is 0.2° below the climate normal for October. Precipitation is expected on 2 days (about 1.5 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 27 October (68.4°), the coolest 4 November (39.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 21 October – 30 October | 59.8° | 58.9° | +0.5° |
| 31 October – 9 November | 54.7° | 56° | -0.8° |
| 10 November – 19 November | at normal | 51.4° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Greenvale (5 mi).
0
Locust Valley, Thursday, 22 October
Clear. High 66°, low 44°.
0Locust Valley, Friday, 23 October
Clear. High 54°, low 44°.
0Locust Valley, Saturday, 24 October
Clear. High 57°, low 40°.
0Locust Valley, Sunday, 25 October
Clear. High 61°, low 43°.
0Locust Valley, Monday, 26 October
Clear. High 67°, low 43°.
0
Locust Valley, Tuesday, 27 October
Overcast. High 68°, low 57°.
0Locust Valley, Wednesday, 28 October
Clear. High 52°, low 44°.
0.13
Locust Valley, Thursday, 29 October
Light rain. High 52°, low 46°.
0.02Locust Valley, Friday, 30 October
Light rain. High 58°, low 47°.
0Locust Valley, Saturday, 31 October
Clear. High 52°, low 43°.
0
Locust Valley, Sunday, 1 November
Mostly clear. High 61°, low 49°.
1.32Locust Valley, Monday, 2 November
Rain. High 64°, low 59°.
0Locust Valley, Tuesday, 3 November
Clear. High 54°, low 43°.
0Locust Valley, Wednesday, 4 November
Clear. High 50°, low 40°.
0Locust Valley, Thursday, 5 November
Clear. High 48°, low 41°.
0.08
Locust Valley, Friday, 6 November
Climate normal for this date — 60-year average.
0.09Locust Valley, Saturday, 7 November
Climate normal for this date — 60-year average.
0.15Locust Valley, Sunday, 8 November
Climate normal for this date — 60-year average.
0.08Locust Valley, Monday, 9 November
Climate normal for this date — 60-year average.
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.
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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