Weather in Port Chester, NY
Port Chester, Sunday, 9 August, 11:04
Overcast. Feels like 92°. High 87°, low 72°.
Monthly outlook for Port Chester, NY: average high 83.4°, average low 67.5°. That is 1.5° above the climate normal for August. Precipitation is expected on 4 days (about 0.3 inches), against a normal of 6 days and 2.2 inches. The warmest day looks like 11 August (89.5°), the coolest 18 August (61.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 82.8° | 81.5° | +0.7° |
| 19 August – 28 August | 84.5° | 79.8° | +2.6° |
| 29 August – 7 September | at normal | 78.2° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Byram (1 mi).
0.04
Port Chester, Monday, 10 August
Light rain. High 89°, low 70°.
0Port Chester, Tuesday, 11 August
Overcast. High 90°, low 74°.
0Port Chester, Wednesday, 12 August
Overcast. High 86°, low 70°.
0.01Port Chester, Thursday, 13 August
Light rain. High 86°, low 71°.
0
Port Chester, Friday, 14 August
Mostly clear. High 79°, low 65°.
0
Port Chester, Saturday, 15 August
Clear. High 78°, low 62°.
0Port Chester, Sunday, 16 August
Overcast. High 77°, low 62°.
0.16Port Chester, Monday, 17 August
Light rain. High 73°, low 65°.
0Port Chester, Tuesday, 18 August
Overcast. High 83°, low 62°.
0
Port Chester, Wednesday, 19 August
Partly cloudy. High 82°, low 72°.
0.05Port Chester, Thursday, 20 August
Light rain. High 86°, low 69°.
0Port Chester, Friday, 21 August
Partly cloudy. High 84°, low 63°.
0Port Chester, Saturday, 22 August
Clear. High 87°, low 68°.
0.05Port Chester, Sunday, 23 August
Light rain. High 88°, low 71°.
0Port Chester, Monday, 24 August
Clear. High 80°, low 64°.
0.08Port Chester, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.06Port Chester, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.16
Port Chester, Thursday, 27 August
Climate normal for this date — 60-year average.
0.21Port Chester, Friday, 28 August
Climate normal for this date — 60-year average.
0.14Port Chester, Saturday, 29 August
Climate normal for this date — 60-year average.
0.08Port Chester, Sunday, 30 August
Climate normal for this date — 60-year average.
0.05Port Chester, Monday, 31 August
Climate normal for this date — 60-year average.
0.09Port Chester, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.18Port Chester, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.11Port Chester, Thursday, 3 September
Climate normal for this date — 60-year average.
0.12Port Chester, Friday, 4 September
Climate normal for this date — 60-year average.
0.06Port Chester, Saturday, 5 September
Climate normal for this date — 60-year average.
0.2Port Chester, Sunday, 6 September
Climate normal for this date — 60-year average.
0.1Port Chester, 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 Port Chester, 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 Port Chester, 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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