Monthly outlook for Mastic Beach, NY: average high 62.3°, average low 52.8°. That is 1.1° above the climate normal for October. Precipitation is expected on 3 days (about 1.5 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 14 October (74.1°), the coolest 18 October (39.7°).
62.3°/52.8°
Average high / low
+1.1°
Above normal
3 / 5
Wet days / normal
1.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 October – 22 October
63.7°
61.3°
+1.4°
23 October – 1 November
59.8°
58.1°
+1°
2 November – 11 November
at normal
55.4°
—
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 (7 mi).
Wed, 1474° / 62°0.02
74 °
Mastic Beach, Wednesday, 14 October
Light rain. High 74°, low 62°.
Pressure29.85 inHg
Wind8.1 mph W
Humidity71%
Visibility6.2 mi
Dew point66°
Thu, 1561° / 51°0
61 °
Mastic Beach, Thursday, 15 October
Clear. High 61°, low 51°.
Pressure30.24 inHg
Wind7.7 mph N
Humidity58%
Visibility6.2 mi
Dew point44°
Fri, 1669° / 53°0.74
69 °
Mastic Beach, Friday, 16 October
Heavy rain. High 69°, low 53°.
Pressure29.71 inHg
Wind15.4 mph SW
Humidity92%
Visibility6.2 mi
Dew point64°
Sat, 1757° / 43°0.03
57 °
Mastic Beach, Saturday, 17 October
Light rain. High 57°, low 43°.
Pressure29.97 inHg
Wind15.6 mph NW
Humidity48%
Visibility6.2 mi
Dew point30°
Sun, 1854° / 40°0
54 °
Mastic Beach, Sunday, 18 October
Clear. High 54°, low 40°.
Pressure30.53 inHg
Wind9.4 mph SW
Humidity57%
Visibility—
Dew point34°
Mon, 1961° / 47°0
61 °
Mastic Beach, Monday, 19 October
Overcast. High 61°, low 47°.
Pressure30.53 inHg
Wind16.6 mph SW
Humidity69%
Visibility—
Dew point44°
Tue, 2063° / 60°0
63 °
Mastic Beach, Tuesday, 20 October
Overcast. High 63°, low 60°.
Pressure30.42 inHg
Wind12.1 mph SW
Humidity73%
Visibility—
Dew point54°
Wed, 2165° / 58°0
65 °
Mastic Beach, Wednesday, 21 October
Clear. High 65°, low 58°.
Pressure30.21 inHg
Wind11 mph SW
Humidity61%
Visibility—
Dew point49°
Thu, 2266° / 60°0
66 °
Mastic Beach, Thursday, 22 October
Overcast. High 66°, low 60°.
Pressure30.15 inHg
Wind6.2 mph N
Humidity65%
Visibility—
Dew point51°
Fri, 2359° / 54°0.05
59 °
Mastic Beach, Friday, 23 October
Light rain. High 59°, low 54°.
Pressure30.27 inHg
Wind13.9 mph SE
Humidity72%
Visibility—
Dew point48°
Sat, 2467° / 56°0.03
67 °
Mastic Beach, Saturday, 24 October
Light rain. High 67°, low 56°.
Pressure29.97 inHg
Wind17.9 mph SE
Humidity80%
Visibility—
Dew point56°
Sun, 2556° / 49°0
56 °
Mastic Beach, Sunday, 25 October
Clear. High 56°, low 49°.
Pressure30.15 inHg
Wind16.8 mph N
Humidity55%
Visibility—
Dew point35°
Mon, 2654° / 45°0
54 °
Mastic Beach, Monday, 26 October
Overcast. High 54°, low 45°.
Pressure30.30 inHg
Wind10.1 mph SW
Humidity47%
Visibility—
Dew point29°
Tue, 2761° / 55°0.02
61 °
Mastic Beach, Tuesday, 27 October
Light rain. High 61°, low 55°.
Pressure30.15 inHg
Wind16.6 mph SW
Humidity80%
Visibility—
Dew point53°
Wed, 2863° / 57°0.57
63 °
Mastic Beach, Wednesday, 28 October
Rain. High 63°, low 57°.
Pressure29.88 inHg
Wind22.5 mph SW
Humidity94%
Visibility—
Dew point60°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2957° / 48°0.19
57 °
Mastic Beach, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high57°
Average low48°
Average precipitation0.19 in
Chance of precipitation25%
Record high71° (1984)
Record low35° (1965)
Fri, 3056° / 47°0.11
56 °
Mastic Beach, Friday, 30 October
Climate normal for this date — 60-year average.
Average high56°
Average low47°
Average precipitation0.11 in
Chance of precipitation27%
Record high69° (2023)
Record low37° (1966)
Sat, 3157° / 48°0.06
57 °
Mastic Beach, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high57°
Average low48°
Average precipitation0.06 in
Chance of precipitation23%
Record high72° (2024)
Record low35° (2020)
Sun, 0158° / 49°0.14
58 °
Mastic Beach, 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°0.08
58 °
Mastic Beach, 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°0.12
57 °
Mastic Beach, 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°0.05
56 °
Mastic Beach, 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°0.15
56 °
Mastic Beach, 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°0.11
55 °
Mastic Beach, 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°0.1
55 °
Mastic Beach, 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°0.17
54 °
Mastic Beach, 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°0.11
54 °
Mastic Beach, 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°0.17
55 °
Mastic Beach, 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°0.15
54 °
Mastic Beach, 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)
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.