As of 22:15 EDT

Weather in Old Mastic, NY

64°Current weather

Old Mastic, Friday, 16 October, 22:15

Overcast. Feels like 63°. High 70°, low 54°.

Pressure29.74 inHg
Wind6.9 mph W
Humidity80%
Visibility6.0 mi
Dew point58°

Monthly outlook for Old Mastic, NY: average high 59.8°, average low 48.8°. That is 0.4° above the climate normal for October. Precipitation is expected on 6 days (about 1.1 inches), against a normal of 4 days and 2.1 inches. The warmest day looks like 16 October (69.6°), the coolest 18 October (37°).

59.8°/48.8°
Average high / low
+0.4°
Above normal
6 / 4
Wet days / normal
1.1 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
16 October – 25 October60.8°60.2°+0.4°
26 October – 4 November58.1°57.4°+0.4°
5 November – 14 Novemberat normal53.7°—

October records over 66 years

83.8°2 October 2019All-time high
33.8°27 October 1976All-time low

Climate normals and records are computed from the nearest reference point — Brookhaven (8 mi).

Sat, 1762° / 40°0.28Rain
62 °Rain

Old Mastic, Saturday, 17 October

Rain. High 62°, low 40°.

Pressure30.12 inHg
Wind13.2 mph N
Humidity54%
Visibility6.2 mi
Dew point34°
Sun, 1855° / 37°0Clear
55 °Clear

Old Mastic, Sunday, 18 October

Clear. High 55°, low 37°.

Pressure30.56 inHg
Wind8.2 mph N
Humidity44%
Visibility6.2 mi
Dew point31°
Mon, 1960° / 44°0Overcast
60 °Overcast

Old Mastic, Monday, 19 October

Overcast. High 60°, low 44°.

Pressure30.42 inHg
Wind9.6 mph NE
Humidity49%
Visibility6.2 mi
Dew point38°
Tue, 2064° / 51°0Overcast
64 °Overcast

Old Mastic, Tuesday, 20 October

Overcast. High 64°, low 51°.

Pressure30.18 inHg
Wind12 mph N
Humidity58%
Visibility6.2 mi
Dew point45°
Wed, 2157° / 48°0Clear
57 °Clear

Old Mastic, Wednesday, 21 October

Clear. High 57°, low 48°.

Pressure30.24 inHg
Wind14.5 mph NE
Humidity62%
Visibility—
Dew point41°
Thu, 2258° / 47°0Mostly clear
58 °Mostly clear

Old Mastic, Thursday, 22 October

Mostly clear. High 58°, low 47°.

Pressure30.09 inHg
Wind17.2 mph N
Humidity67%
Visibility—
Dew point41°
Fri, 2360° / 51°0Clear
60 °Clear

Old Mastic, Friday, 23 October

Clear. High 60°, low 51°.

Pressure30.18 inHg
Wind21.1 mph NE
Humidity52%
Visibility—
Dew point39°
Sat, 2458° / 49°0Clear
58 °Clear

Old Mastic, Saturday, 24 October

Clear. High 58°, low 49°.

Pressure30.33 inHg
Wind19.7 mph NE
Humidity66%
Visibility—
Dew point41°
Sun, 2565° / 50°0Partly cloudy
65 °Partly cloudy

Old Mastic, Sunday, 25 October

Partly cloudy. High 65°, low 50°.

Pressure30.06 inHg
Wind16.6 mph N
Humidity49%
Visibility—
Dew point37°
Mon, 2656° / 45°0Clear
56 °Clear

Old Mastic, Monday, 26 October

Clear. High 56°, low 45°.

Pressure30.18 inHg
Wind22.4 mph NW
Humidity47%
Visibility—
Dew point30°
Tue, 2757° / 47°0Overcast
57 °Overcast

Old Mastic, Tuesday, 27 October

Overcast. High 57°, low 47°.

Pressure30.30 inHg
Wind10.4 mph NW
Humidity37%
Visibility—
Dew point26°
Wed, 2858° / 52°0.17Light rain
58 °Light rain

Old Mastic, Wednesday, 28 October

Light rain. High 58°, low 52°.

Pressure30.06 inHg
Wind15.4 mph W
Humidity92%
Visibility—
Dew point52°
Thu, 2960° / 55°0.06Light rain
60 °Light rain

Old Mastic, Thursday, 29 October

Light rain. High 60°, low 55°.

Pressure30.00 inHg
Wind14.2 mph NE
Humidity80%
Visibility—
Dew point51°
Fri, 3058° / 53°0.08Light rain
58 °Light rain

Old Mastic, Friday, 30 October

Light rain. High 58°, low 53°.

Pressure30.06 inHg
Wind10.7 mph NE
Humidity84%
Visibility—
Dew point51°
Sat, 3160° / 58°0.25Light rain
60 °Light rain

Old Mastic, Saturday, 31 October

Light rain. High 60°, low 58°.

Pressure29.71 inHg
Wind17.1 mph SW
Humidity91%
Visibility—
Dew point57°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0158° / 49°0.14Climate normal
58 °Climate normal

Old Mastic, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high58°
Average low49°
Average precipitation0.14 in
Chance of precipitation30%
Record high75° (2024)
Record low38° (1976)
Mon, 0258° / 49°0.08Climate normal
58 °Climate normal

Old Mastic, Monday, 2 November

Climate normal for this date — 60-year average.

Average high58°
Average low49°
Average precipitation0.08 in
Chance of precipitation32%
Record high69° (1971)
Record low33° (1965)
Tue, 0357° / 48°0.12Climate normal
57 °Climate normal

Old Mastic, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high57°
Average low48°
Average precipitation0.12 in
Chance of precipitation30%
Record high69° (2017)
Record low37° (1996)
Wed, 0456° / 47°0.05Climate normal
56 °Climate normal

Old Mastic, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high56°
Average low47°
Average precipitation0.05 in
Chance of precipitation27%
Record high68° (1975)
Record low37° (2013)
Thu, 0556° / 48°0.15Climate normal
56 °Climate normal

Old Mastic, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high56°
Average low48°
Average precipitation0.15 in
Chance of precipitation30%
Record high69° (2022)
Record low38° (1965)
Fri, 0655° / 47°0.11Climate normal
55 °Climate normal

Old Mastic, Friday, 6 November

Climate normal for this date — 60-year average.

Average high55°
Average low47°
Average precipitation0.11 in
Chance of precipitation32%
Record high70° (2024)
Record low36° (1962)
Sat, 0755° / 46°0.1Climate normal
55 °Climate normal

Old Mastic, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high55°
Average low46°
Average precipitation0.1 in
Chance of precipitation25%
Record high75° (2022)
Record low35° (1962)
Sun, 0854° / 45°0.17Climate normal
54 °Climate normal

Old Mastic, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high54°
Average low45°
Average precipitation0.17 in
Chance of precipitation30%
Record high72° (2020)
Record low32° (2019)
Mon, 0954° / 45°0.11Climate normal
54 °Climate normal

Old Mastic, Monday, 9 November

Climate normal for this date — 60-year average.

Average high54°
Average low45°
Average precipitation0.11 in
Chance of precipitation23%
Record high68° (2020)
Record low29° (2019)
Tue, 1055° / 45°0.17Climate normal
55 °Climate normal

Old Mastic, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high55°
Average low45°
Average precipitation0.17 in
Chance of precipitation42%
Record high65° (1999)
Record low28° (2017)
Wed, 1154° / 45°0.15Climate normal
54 °Climate normal

Old Mastic, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high54°
Average low45°
Average precipitation0.15 in
Chance of precipitation37%
Record high68° (2024)
Record low26° (2017)
Thu, 1252° / 44°0.16Climate normal
52 °Climate normal

Old Mastic, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high52°
Average low44°
Average precipitation0.16 in
Chance of precipitation38%
Record high70° (2022)
Record low30° (2019)
Fri, 1351° / 42°0.23Climate normal
51 °Climate normal

Old Mastic, Friday, 13 November

Climate normal for this date — 60-year average.

Average high51°
Average low42°
Average precipitation0.23 in
Chance of precipitation40%
Record high65° (1964)
Record low24° (2019)
Sat, 1451° / 42°0.11Climate normal
51 °Climate normal

Old Mastic, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high51°
Average low42°
Average precipitation0.11 in
Chance of precipitation22%
Record high63° (1989)
Record low27° (2019)

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 Old Mastic, 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 Old Mastic, 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.