Weather in Mastic Beach, NY
Mastic Beach, Sunday, 11 October, 03:08
Overcast. Feels like 47°. High 61°, low 47°.
Monthly outlook for Mastic Beach, NY: average high 59.8°, average low 49°. That is 0.6° below the climate normal for October. Precipitation is expected on 3 days (about 1.7 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 14 October (76.7°), the coolest 18 October (40.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 11 October – 20 October | 62.2° | 61.7° | +0.3° |
| 21 October – 30 October | 55.9° | 58.7° | -1.5° |
| 31 October – 9 November | at normal | 56° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Brookhaven (7 mi).
1.01
Mastic Beach, Monday, 12 October
Heavy rain. High 69°, low 51°.
0
Mastic Beach, Tuesday, 13 October
Clear. High 68°, low 57°.
0
Mastic Beach, Wednesday, 14 October
Mostly clear. High 77°, low 65°.
0Mastic Beach, Thursday, 15 October
Clear. High 62°, low 52°.
0.06Mastic Beach, Friday, 16 October
Light rain. High 66°, low 46°.
0.02Mastic Beach, Saturday, 17 October
Light rain. High 66°, low 51°.
0
Mastic Beach, Sunday, 18 October
Partly cloudy. High 49°, low 41°.
0Mastic Beach, Monday, 19 October
Clear. High 50°, low 43°.
0Mastic Beach, Tuesday, 20 October
Clear. High 54°, low 45°.
0Mastic Beach, Wednesday, 21 October
Clear. High 56°, low 49°.
0Mastic Beach, Thursday, 22 October
Overcast. High 60°, low 56°.
0Mastic Beach, Friday, 23 October
Overcast. High 64°, low 50°.
0Mastic Beach, Saturday, 24 October
Clear. High 51°, low 45°.
0.02Mastic Beach, Sunday, 25 October
Light rain. High 51°, low 42°.
0.04Mastic Beach, Monday, 26 October
Light rain. High 53°, low 45°.
0.16Mastic Beach, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.17Mastic Beach, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.19Mastic Beach, Thursday, 29 October
Climate normal for this date — 60-year average.
0.11Mastic Beach, Friday, 30 October
Climate normal for this date — 60-year average.
0.06Mastic Beach, Saturday, 31 October
Climate normal for this date — 60-year average.
0.14Mastic Beach, Sunday, 1 November
Climate normal for this date — 60-year average.
0.08Mastic Beach, Monday, 2 November
Climate normal for this date — 60-year average.
0.12Mastic Beach, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.05Mastic Beach, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.15Mastic Beach, Thursday, 5 November
Climate normal for this date — 60-year average.
0.11Mastic Beach, Friday, 6 November
Climate normal for this date — 60-year average.
0.1Mastic Beach, Saturday, 7 November
Climate normal for this date — 60-year average.
0.17Mastic Beach, Sunday, 8 November
Climate normal for this date — 60-year average.
0.11Mastic Beach, Monday, 9 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 Mastic Beach, 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 Mastic Beach, 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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