Monthly outlook for Peconic, NY: average high 58.3°, average low 47.9°. That is 0.1° above the climate normal for October. Precipitation is expected on 2 days (about 1.2 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 20 October (67°), the coolest 4 November (39.8°).
58.3°/47.9°
Average high / low
+0.1°
Above normal
2 / 5
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
20 October – 29 October
60.1°
58.7°
+0.8°
30 October – 8 November
55.2°
56.1°
-0.5°
9 November – 18 November
at normal
52.7°
—
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).
Wed, 2161° / 42°0
61 °
Peconic, Wednesday, 21 October
Partly cloudy. High 61°, low 42°.
Pressure30.18 inHg
Wind21.4 mph NE
Humidity71%
Visibility6.2 mi
Dew point44°
Thu, 2262° / 40°0
62 °
Peconic, Thursday, 22 October
Clear. High 62°, low 40°.
Pressure29.94 inHg
Wind17.1 mph NW
Humidity51%
Visibility6.2 mi
Dew point39°
Fri, 2354° / 46°0
54 °
Peconic, Friday, 23 October
Clear. High 54°, low 46°.
Pressure30.36 inHg
Wind16.8 mph N
Humidity58%
Visibility6.2 mi
Dew point34°
Sat, 2454° / 46°0
54 °
Peconic, Saturday, 24 October
Mostly clear. High 54°, low 46°.
Pressure30.59 inHg
Wind2.4 mph N
Humidity63%
Visibility6.2 mi
Dew point36°
Sun, 2558° / 52°0
58 °
Peconic, Sunday, 25 October
Clear. High 58°, low 52°.
Pressure30.56 inHg
Wind11.8 mph SW
Humidity85%
Visibility—
Dew point48°
Mon, 2663° / 54°0
63 °
Peconic, Monday, 26 October
Overcast. High 63°, low 54°.
Pressure30.30 inHg
Wind12.1 mph W
Humidity66%
Visibility—
Dew point46°
Tue, 2762° / 56°0
62 °
Peconic, Tuesday, 27 October
Overcast. High 62°, low 56°.
Pressure30.18 inHg
Wind18.2 mph E
Humidity70%
Visibility—
Dew point50°
Wed, 2857° / 52°0.02
57 °
Peconic, Wednesday, 28 October
Light rain. High 57°, low 52°.
Pressure30.39 inHg
Wind20.5 mph E
Humidity82%
Visibility—
Dew point47°
Thu, 2963° / 50°0.37
63 °
Peconic, Thursday, 29 October
Rain. High 63°, low 50°.
Pressure29.77 inHg
Wind29.5 mph W
Humidity74%
Visibility—
Dew point55°
Fri, 3049° / 43°0
49 °
Peconic, Friday, 30 October
Clear. High 49°, low 43°.
Pressure29.97 inHg
Wind28.5 mph NW
Humidity59%
Visibility—
Dew point33°
Sat, 3150° / 42°0
50 °
Peconic, Saturday, 31 October
Clear. High 50°, low 42°.
Pressure30.42 inHg
Wind20.3 mph NW
Humidity51%
Visibility—
Dew point27°
Sun, 0161° / 52°0
61 °
Peconic, Sunday, 1 November
Overcast. High 61°, low 52°.
Pressure30.47 inHg
Wind17.4 mph SW
Humidity67%
Visibility—
Dew point46°
Mon, 0262° / 61°0.81
62 °
Peconic, Monday, 2 November
Rain. High 62°, low 61°.
Pressure30.15 inHg
Wind29.8 mph S
Humidity90%
Visibility—
Dew point59°
Tue, 0361° / 46°0
61 °
Peconic, Tuesday, 3 November
Clear. High 61°, low 46°.
Pressure30.03 inHg
Wind28.6 mph NW
Humidity60%
Visibility—
Dew point40°
Wed, 0447° / 40°0
47 °
Peconic, Wednesday, 4 November
Clear. High 47°, low 40°.
Pressure30.27 inHg
Wind23.7 mph NW
Humidity52%
Visibility—
Dew point25°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Tue, 1751° / 44°0.17
51 °
Peconic, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high51°
Average low44°
Average precipitation0.17 in
Chance of precipitation32%
Record high64° (2006)
Record low32° (1980)
Wed, 1851° / 44°0.08
51 °
Peconic, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high51°
Average low44°
Average precipitation0.08 in
Chance of precipitation22%
Record high62° (2021)
Record low32° (2020)
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.