Monthly outlook for Peconic, NY: average high 59.4°, average low 51.7°. That is 0.6° above the climate normal for October. Precipitation is expected on 2 days (about 1.1 inches), against a normal of 5 days and 2.3 inches. The warmest day looks like 30 October (64.3°), the coolest 18 October (40.1°).
59.4°/51.7°
Average high / low
+0.6°
Above normal
2 / 5
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
18 October – 27 October
58.1°
59.1°
-0.6°
28 October – 6 November
61.5°
56.7°
+2.7°
7 November – 16 November
at normal
53.4°
—
October records over 66 years
78.4°2 October 2019All-time high
34.3°27 October 1976All-time low
Climate normals and records are computed from the nearest reference point — Sag Harbor (9 mi).
Mon, 1961° / 49°0
61 °
Peconic, Monday, 19 October
Overcast. High 61°, low 49°.
Pressure30.33 inHg
Wind17.5 mph NE
Humidity64%
Visibility6.2 mi
Dew point43°
Tue, 2063° / 55°0
63 °
Peconic, Tuesday, 20 October
Clear. High 63°, low 55°.
Pressure30.18 inHg
Wind18.1 mph NE
Humidity59%
Visibility6.2 mi
Dew point46°
Wed, 2157° / 49°0
57 °
Peconic, Wednesday, 21 October
Mostly clear. High 57°, low 49°.
Pressure30.30 inHg
Wind15.2 mph NE
Humidity68%
Visibility6.2 mi
Dew point41°
Thu, 2260° / 50°0
60 °
Peconic, Thursday, 22 October
Clear. High 60°, low 50°.
Pressure30.09 inHg
Wind21.7 mph N
Humidity77%
Visibility—
Dew point44°
Fri, 2355° / 47°0
55 °
Peconic, Friday, 23 October
Clear. High 55°, low 47°.
Pressure30.36 inHg
Wind25.9 mph N
Humidity65%
Visibility—
Dew point37°
Sat, 2452° / 47°0
52 °
Peconic, Saturday, 24 October
Clear. High 52°, low 47°.
Pressure30.62 inHg
Wind18.7 mph NE
Humidity62%
Visibility—
Dew point36°
Sun, 2558° / 50°0
58 °
Peconic, Sunday, 25 October
Clear. High 58°, low 50°.
Pressure30.53 inHg
Wind13.5 mph SW
Humidity63%
Visibility—
Dew point42°
Mon, 2661° / 52°0
61 °
Peconic, Monday, 26 October
Overcast. High 61°, low 52°.
Pressure30.18 inHg
Wind19 mph N
Humidity66%
Visibility—
Dew point48°
Tue, 2759° / 49°0
59 °
Peconic, Tuesday, 27 October
Clear. High 59°, low 49°.
Pressure30.27 inHg
Wind17.3 mph NW
Humidity60%
Visibility—
Dew point38°
Wed, 2858° / 53°0
58 °
Peconic, Wednesday, 28 October
Partly cloudy. High 58°, low 53°.
Pressure30.30 inHg
Wind10.9 mph NW
Humidity57%
Visibility—
Dew point39°
Thu, 2961° / 56°0
61 °
Peconic, Thursday, 29 October
Overcast. High 61°, low 56°.
Pressure30.30 inHg
Wind17.8 mph SW
Humidity55%
Visibility—
Dew point43°
Fri, 3064° / 60°0.01
64 °
Peconic, Friday, 30 October
Light rain. High 64°, low 60°.
Pressure30.03 inHg
Wind21.5 mph SW
Humidity81%
Visibility—
Dew point57°
Sat, 3163° / 57°0.09
63 °
Peconic, Saturday, 31 October
Light rain. High 63°, low 57°.
Pressure30.12 inHg
Wind18.9 mph NW
Humidity73%
Visibility—
Dew point52°
Sun, 0160° / 54°1.01
60 °
Peconic, Sunday, 1 November
Heavy rain. High 60°, low 54°.
Pressure30.27 inHg
Wind20.2 mph S
Humidity72%
Visibility—
Dew point49°
Mon, 0262° / 59°0.02
62 °
Peconic, Monday, 2 November
Light rain. High 62°, low 59°.
Pressure29.94 inHg
Wind22 mph W
Humidity75%
Visibility—
Dew point51°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0357° / 49°0.15
57 °
Peconic, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high57°
Average low49°
Average precipitation0.15 in
Chance of precipitation30%
Record high67° (1971)
Record low39° (1996)
Wed, 0456° / 49°0.06
56 °
Peconic, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high56°
Average low49°
Average precipitation0.06 in
Chance of precipitation23%
Record high65° (1975)
Record low38° (1989)
Thu, 0556° / 49°0.17
56 °
Peconic, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high56°
Average low49°
Average precipitation0.17 in
Chance of precipitation37%
Record high66° (2022)
Record low37° (1965)
Fri, 0655° / 49°0.14
55 °
Peconic, Friday, 6 November
Climate normal for this date — 60-year average.
Average high55°
Average low49°
Average precipitation0.14 in
Chance of precipitation38%
Record high69° (2024)
Record low37° (1962)
Sat, 0755° / 47°0.09
55 °
Peconic, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high55°
Average low47°
Average precipitation0.09 in
Chance of precipitation32%
Record high72° (2022)
Record low35° (1962)
Sun, 0854° / 46°0.16
54 °
Peconic, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high54°
Average low46°
Average precipitation0.16 in
Chance of precipitation37%
Record high66° (2020)
Record low34° (2019)
Mon, 0954° / 47°0.09
54 °
Peconic, Monday, 9 November
Climate normal for this date — 60-year average.
Average high54°
Average low47°
Average precipitation0.09 in
Chance of precipitation33%
Record high64° (1989)
Record low31° (1971)
Tue, 1055° / 47°0.2
55 °
Peconic, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high55°
Average low47°
Average precipitation0.2 in
Chance of precipitation42%
Record high64° (1977)
Record low30° (2017)
Wed, 1154° / 46°0.18
54 °
Peconic, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high54°
Average low46°
Average precipitation0.18 in
Chance of precipitation35%
Record high67° (2024)
Record low28° (2017)
Thu, 1253° / 45°0.19
53 °
Peconic, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high53°
Average low45°
Average precipitation0.19 in
Chance of precipitation42%
Record high69° (2022)
Record low32° (2019)
Fri, 1352° / 44°0.24
52 °
Peconic, Friday, 13 November
Climate normal for this date — 60-year average.
Average high52°
Average low44°
Average precipitation0.24 in
Chance of precipitation42%
Record high62° (1964)
Record low27° (2019)
Sat, 1451° / 44°0.13
51 °
Peconic, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high51°
Average low44°
Average precipitation0.13 in
Chance of precipitation23%
Record high61° (2009)
Record low28° (1986)
Sun, 1553° / 44°0.14
53 °
Peconic, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high53°
Average low44°
Average precipitation0.14 in
Chance of precipitation42%
Record high65° (1993)
Record low27° (1967)
Mon, 1652° / 44°0.17
52 °
Peconic, Monday, 16 November
Climate normal for this date — 60-year average.
Average high52°
Average low44°
Average precipitation0.17 in
Chance of precipitation37%
Record high64° (2006)
Record low26° (1967)
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 Peconic, 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 Peconic, 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.