Weather in Upper Brookville, NY
Upper Brookville, Saturday, 8 August, 15:07
Mostly clear. Feels like 99°. High 89°, low 71°.
Monthly outlook for Upper Brookville, NY: average high 82.9°, average low 70.4°. That is 1.8° above the climate normal for August. Precipitation is expected on 7 days (about 3.2 inches), against a normal of 6 days and 2.3 inches. The warmest day looks like 11 August (93.3°), the coolest 23 August (62.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 August – 17 August | 85.4° | 80.3° | +2.8° |
| 18 August – 27 August | 78.6° | 78.6° | +0° |
| 28 August – 6 September | at normal | 77.5° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Westbury (6 mi).
0Upper Brookville, Sunday, 9 August
Mostly clear. High 92°, low 73°.
0.01
Upper Brookville, Monday, 10 August
Light rain. High 91°, low 72°.
0.05Upper Brookville, Tuesday, 11 August
Light rain. High 93°, low 77°.
0.43Upper Brookville, Wednesday, 12 August
Rain. High 82°, low 73°.
0.06Upper Brookville, Thursday, 13 August
Light rain. High 90°, low 70°.
0
Upper Brookville, Friday, 14 August
Overcast. High 80°, low 68°.
0
Upper Brookville, Saturday, 15 August
Clear. High 79°, low 64°.
0Upper Brookville, Sunday, 16 August
Overcast. High 79°, low 67°.
0Upper Brookville, Monday, 17 August
Overcast. High 80°, low 70°.
0.2Upper Brookville, Tuesday, 18 August
Light rain. High 81°, low 74°.
0.07Upper Brookville, Wednesday, 19 August
Light rain. High 83°, low 72°.
0Upper Brookville, Thursday, 20 August
Overcast. High 79°, low 69°.
1.58Upper Brookville, Friday, 21 August
Heavy rain. High 76°, low 70°.
0.76Upper Brookville, Saturday, 22 August
Heavy rain. High 80°, low 70°.
0Upper Brookville, Sunday, 23 August
Clear. High 73°, low 62°.
0.08
Upper Brookville, Monday, 24 August
Climate normal for this date — 60-year average.
0.08Upper Brookville, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.07Upper Brookville, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.13
Upper Brookville, Thursday, 27 August
Climate normal for this date — 60-year average.
0.19Upper Brookville, Friday, 28 August
Climate normal for this date — 60-year average.
0.14Upper Brookville, Saturday, 29 August
Climate normal for this date — 60-year average.
0.07Upper Brookville, Sunday, 30 August
Climate normal for this date — 60-year average.
0.05Upper Brookville, Monday, 31 August
Climate normal for this date — 60-year average.
0.07Upper Brookville, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.16Upper Brookville, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.12Upper Brookville, Thursday, 3 September
Climate normal for this date — 60-year average.
0.12Upper Brookville, Friday, 4 September
Climate normal for this date — 60-year average.
0.05Upper Brookville, Saturday, 5 September
Climate normal for this date — 60-year average.
0.18Upper Brookville, Sunday, 6 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 Upper Brookville, 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 Upper Brookville, 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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