Monthly outlook for Peconic, NY: average high 61.5°, average low 54.2°. That is 0.9° above the climate normal for October. Precipitation is expected on 1 day (about 0.8 inches), against a normal of 5 days and 2.4 inches. The warmest day looks like 14 October (72.7°), the coolest 28 October (43.1°).
61.5°/54.2°
Average high / low
+0.9°
Above normal
1 / 5
Wet days / normal
0.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 October – 22 October
62.8°
60.6°
+1.2°
23 October – 1 November
59.3°
57.8°
+0.8°
2 November – 11 November
at normal
55.4°
—
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).
Wed, 1473° / 62°0
73 °
Peconic, Wednesday, 14 October
Overcast. High 73°, low 62°.
Pressure29.85 inHg
Wind20 mph W
Humidity88%
Visibility6.2 mi
Dew point64°
Thu, 1561° / 58°0
61 °
Peconic, Thursday, 15 October
Overcast. High 61°, low 58°.
Pressure30.24 inHg
Wind8.5 mph N
Humidity62%
Visibility6.2 mi
Dew point46°
Fri, 1670° / 59°0.78
70 °
Peconic, Friday, 16 October
Heavy rain. High 70°, low 59°.
Pressure29.65 inHg
Wind24.5 mph SW
Humidity92%
Visibility6.2 mi
Dew point65°
Sat, 1758° / 48°0.02
58 °
Peconic, Saturday, 17 October
Light rain. High 58°, low 48°.
Pressure29.97 inHg
Wind31.1 mph NW
Humidity58%
Visibility6.2 mi
Dew point36°
Sun, 1856° / 47°0
56 °
Peconic, Sunday, 18 October
Clear. High 56°, low 47°.
Pressure30.47 inHg
Wind21.3 mph NW
Humidity60%
Visibility—
Dew point36°
Mon, 1962° / 55°0
62 °
Peconic, Monday, 19 October
Overcast. High 62°, low 55°.
Pressure30.45 inHg
Wind21.1 mph SW
Humidity66%
Visibility—
Dew point48°
Tue, 2064° / 61°0
64 °
Peconic, Tuesday, 20 October
Overcast. High 64°, low 61°.
Pressure30.36 inHg
Wind15.3 mph SW
Humidity67%
Visibility—
Dew point51°
Wed, 2160° / 55°0
60 °
Peconic, Wednesday, 21 October
Clear. High 60°, low 55°.
Pressure30.45 inHg
Wind12.8 mph NE
Humidity47%
Visibility—
Dew point37°
Thu, 2259° / 54°0
59 °
Peconic, Thursday, 22 October
Clear. High 59°, low 54°.
Pressure30.50 inHg
Wind10.7 mph S
Humidity66%
Visibility—
Dew point46°
Fri, 2363° / 57°0
63 °
Peconic, Friday, 23 October
Partly cloudy. High 63°, low 57°.
Pressure30.36 inHg
Wind16.7 mph SW
Humidity70%
Visibility—
Dew point51°
Sat, 2467° / 61°0
67 °
Peconic, Saturday, 24 October
Mostly clear. High 67°, low 61°.
Pressure30.09 inHg
Wind15.1 mph W
Humidity71%
Visibility—
Dew point55°
Sun, 2564° / 55°0
64 °
Peconic, Sunday, 25 October
Clear. High 64°, low 55°.
Pressure30.00 inHg
Wind17.7 mph W
Humidity60%
Visibility—
Dew point45°
Mon, 2659° / 50°0
59 °
Peconic, Monday, 26 October
Clear. High 59°, low 50°.
Pressure29.91 inHg
Wind19.5 mph W
Humidity58%
Visibility—
Dew point38°
Tue, 2752° / 47°0
52 °
Peconic, Tuesday, 27 October
Clear. High 52°, low 47°.
Pressure30.12 inHg
Wind24.2 mph NW
Humidity55%
Visibility—
Dew point34°
Wed, 2851° / 43°0
51 °
Peconic, Wednesday, 28 October
Partly cloudy. High 51°, low 43°.
Pressure30.45 inHg
Wind13.8 mph N
Humidity52%
Visibility—
Dew point28°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2957° / 49°0.17
57 °
Peconic, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high57°
Average low49°
Average precipitation0.17 in
Chance of precipitation23%
Record high68° (1984)
Record low36° (1965)
Fri, 3056° / 49°0.14
56 °
Peconic, Friday, 30 October
Climate normal for this date — 60-year average.
Average high56°
Average low49°
Average precipitation0.14 in
Chance of precipitation30%
Record high68° (2023)
Record low37° (1966)
Sat, 3156° / 50°0.07
56 °
Peconic, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high56°
Average low50°
Average precipitation0.07 in
Chance of precipitation22%
Record high73° (2024)
Record low38° (2020)
Sun, 0158° / 51°0.15
58 °
Peconic, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high58°
Average low51°
Average precipitation0.15 in
Chance of precipitation33%
Record high73° (2024)
Record low39° (2010)
Mon, 0257° / 51°0.1
57 °
Peconic, Monday, 2 November
Climate normal for this date — 60-year average.
Average high57°
Average low51°
Average precipitation0.1 in
Chance of precipitation35%
Record high67° (1971)
Record low33° (1965)
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)
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.