Weather in Locust Valley, PA
Locust Valley, Sunday, 9 August, 00:27
Overcast. Feels like 73°. High 87°, low 71°.
Monthly outlook for Locust Valley, PA: average high 80°, average low 62.9°. That is 0.7° below the climate normal for August. Precipitation is expected on 3 days (about 1.4 inches), against a normal of 6 days and 2.1 inches. The warmest day looks like 11 August (89.6°), the coolest 22 August (53.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 80.7° | 81.9° | -0.6° |
| 19 August – 28 August | 78.7° | 80.5° | -1° |
| 29 August – 7 September | at normal | 79° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Stiles (13 mi).
0
Locust Valley, Monday, 10 August
Light rain. High 88°, low 71°.
0.01Locust Valley, Tuesday, 11 August
Light rain. High 90°, low 70°.
0.03Locust Valley, Wednesday, 12 August
Light rain. High 83°, low 69°.
0.02Locust Valley, Thursday, 13 August
Light rain. High 81°, low 63°.
0
Locust Valley, Friday, 14 August
Clear. High 77°, low 57°.
0Locust Valley, Saturday, 15 August
Clear. High 79°, low 57°.
0Locust Valley, Sunday, 16 August
Overcast. High 80°, low 56°.
0.02Locust Valley, Monday, 17 August
Light rain. High 75°, low 59°.
0.14Locust Valley, Tuesday, 18 August
Light rain. High 68°, low 64°.
0.04Locust Valley, Wednesday, 19 August
Light rain. High 75°, low 64°.
1.08Locust Valley, Thursday, 20 August
Heavy rain. High 77°, low 65°.
0Locust Valley, Friday, 21 August
Clear. High 77°, low 58°.
0Locust Valley, Saturday, 22 August
Clear. High 77°, low 54°.
0.04Locust Valley, Sunday, 23 August
Light rain. High 82°, low 61°.
0.02Locust Valley, Monday, 24 August
Light rain. High 84°, low 68°.
0.07
Locust Valley, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.06Locust Valley, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.19
Locust Valley, Thursday, 27 August
Climate normal for this date — 60-year average.
0.19Locust Valley, Friday, 28 August
Climate normal for this date — 60-year average.
0.14Locust Valley, Saturday, 29 August
Climate normal for this date — 60-year average.
0.05Locust Valley, Sunday, 30 August
Climate normal for this date — 60-year average.
0.06Locust Valley, Monday, 31 August
Climate normal for this date — 60-year average.
0.15Locust Valley, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.12Locust Valley, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.14Locust Valley, Thursday, 3 September
Climate normal for this date — 60-year average.
0.13Locust Valley, Friday, 4 September
Climate normal for this date — 60-year average.
0.07Locust Valley, Saturday, 5 September
Climate normal for this date — 60-year average.
0.23Locust Valley, Sunday, 6 September
Climate normal for this date — 60-year average.
0.13Locust Valley, Monday, 7 September
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, PA 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, PA 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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