Monthly outlook for Peconic, NY: average high 59.4°, average low 52.1°. That is 0.4° above the climate normal for October. Precipitation is expected on 2 days (about 0.4 inches), against a normal of 5 days and 2.3 inches. The warmest day looks like 16 October (69.3°), the coolest 18 October (46.2°).
59.4°/52.1°
Average high / low
+0.4°
Above normal
2 / 5
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
16 October – 25 October
59.1°
59.7°
-0.4°
26 October – 4 November
60°
57.1°
+1.6°
5 November – 14 November
at normal
54°
—
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).
Sat, 1758° / 48°0.24
58 °
Peconic, Saturday, 17 October
Rain. High 58°, low 48°.
Pressure30.15 inHg
Wind21.9 mph N
Humidity62%
Visibility6.2 mi
Dew point40°
Sun, 1857° / 46°0
57 °
Peconic, Sunday, 18 October
Clear. High 57°, low 46°.
Pressure30.59 inHg
Wind12.4 mph NE
Humidity50%
Visibility6.2 mi
Dew point33°
Mon, 1958° / 51°0
58 °
Peconic, Monday, 19 October
Partly cloudy. High 58°, low 51°.
Pressure30.39 inHg
Wind22.1 mph NE
Humidity74%
Visibility6.2 mi
Dew point46°
Tue, 2063° / 53°0
63 °
Peconic, Tuesday, 20 October
Overcast. High 63°, low 53°.
Pressure30.12 inHg
Wind18.7 mph NE
Humidity56%
Visibility6.2 mi
Dew point43°
Wed, 2158° / 52°0
58 °
Peconic, Wednesday, 21 October
Mostly clear. High 58°, low 52°.
Pressure30.30 inHg
Wind27.3 mph NE
Humidity71%
Visibility—
Dew point45°
Thu, 2255° / 52°0.02
55 °
Peconic, Thursday, 22 October
Light rain. High 55°, low 52°.
Pressure30.36 inHg
Wind22.7 mph NE
Humidity71%
Visibility—
Dew point45°
Fri, 2361° / 50°0
61 °
Peconic, Friday, 23 October
Clear. High 61°, low 50°.
Pressure30.06 inHg
Wind19.6 mph N
Humidity65%
Visibility—
Dew point41°
Sat, 2455° / 48°0
55 °
Peconic, Saturday, 24 October
Overcast. High 55°, low 48°.
Pressure30.30 inHg
Wind21 mph N
Humidity70%
Visibility—
Dew point40°
Sun, 2556° / 50°0
56 °
Peconic, Sunday, 25 October
Overcast. High 56°, low 50°.
Pressure30.45 inHg
Wind18.5 mph NE
Humidity75%
Visibility—
Dew point45°
Mon, 2657° / 52°0
57 °
Peconic, Monday, 26 October
Clear. High 57°, low 52°.
Pressure30.36 inHg
Wind11.8 mph NE
Humidity78%
Visibility—
Dew point47°
Tue, 2759° / 54°0
59 °
Peconic, Tuesday, 27 October
Overcast. High 59°, low 54°.
Pressure30.30 inHg
Wind10.9 mph NE
Humidity68%
Visibility—
Dew point45°
Wed, 2857° / 52°0
57 °
Peconic, Wednesday, 28 October
Overcast. High 57°, low 52°.
Pressure30.33 inHg
Wind9.8 mph NE
Humidity77%
Visibility—
Dew point46°
Thu, 2962° / 57°0
62 °
Peconic, Thursday, 29 October
Overcast. High 62°, low 57°.
Pressure30.24 inHg
Wind11.9 mph NW
Humidity74%
Visibility—
Dew point50°
Fri, 3062° / 58°0
62 °
Peconic, Friday, 30 October
Mostly clear. High 62°, low 58°.
Pressure30.24 inHg
Wind14.6 mph SW
Humidity77%
Visibility—
Dew point54°
Sat, 3163° / 58°0.03
63 °
Peconic, Saturday, 31 October
Light rain. High 63°, low 58°.
Pressure30.03 inHg
Wind14.7 mph SW
Humidity77%
Visibility—
Dew point55°
From day 17 onward the outlook is built from 60-year climate statistics
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)
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)
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.