Monthly outlook for Cold Spring Harbor, NY: average high 63.6°, average low 52.6°. That is 1.5° above the climate normal for October. Precipitation is expected on 4 days (about 1.4 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 14 October (75.8°), the coolest 18 October (36.8°).
63.6°/52.6°
Average high / low
+1.5°
Above normal
4 / 5
Wet days / normal
1.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
63.6°
61.7°
+1.1°
21 October – 30 October
63.5°
58.6°
+2.7°
31 October – 9 November
at normal
55.8°
—
October records over 66 years
90.3°2 October 2019All-time high
32.7°27 October 1976All-time low
Climate normals and records are computed from the nearest reference point — Huntington Station (3 mi).
Mon, 1271° / 52°0.06
71 °
Cold Spring Harbor, Monday, 12 October
Light rain. High 71°, low 52°.
Pressure29.80 inHg
Wind7.4 mph N
Humidity71%
Visibility6.2 mi
Dew point56°
Tue, 1370° / 54°0
70 °
Cold Spring Harbor, Tuesday, 13 October
Mostly clear. High 70°, low 54°.
Pressure29.94 inHg
Wind5.8 mph SE
Humidity77%
Visibility6.2 mi
Dew point62°
Wed, 1476° / 64°0
76 °
Cold Spring Harbor, Wednesday, 14 October
Mostly clear. High 76°, low 64°.
Pressure29.83 inHg
Wind6.6 mph W
Humidity77%
Visibility6.2 mi
Dew point67°
Thu, 1563° / 56°0
63 °
Cold Spring Harbor, Thursday, 15 October
Clear. High 63°, low 56°.
Pressure30.18 inHg
Wind6 mph N
Humidity59%
Visibility6.2 mi
Dew point46°
Fri, 1670° / 55°0.47
70 °
Cold Spring Harbor, Friday, 16 October
Rain. High 70°, low 55°.
Pressure29.65 inHg
Wind18.3 mph NW
Humidity92%
Visibility—
Dew point60°
Sat, 1752° / 40°0.11
52 °
Cold Spring Harbor, Saturday, 17 October
Light rain. High 52°, low 40°.
Pressure30.00 inHg
Wind22.7 mph NW
Humidity82%
Visibility—
Dew point38°
Sun, 1850° / 37°0
50 °
Cold Spring Harbor, Sunday, 18 October
Clear. High 50°, low 37°.
Pressure30.56 inHg
Wind18.3 mph NW
Humidity36%
Visibility—
Dew point17°
Mon, 1962° / 47°0
62 °
Cold Spring Harbor, Monday, 19 October
Overcast. High 62°, low 47°.
Pressure30.56 inHg
Wind15.3 mph SW
Humidity37%
Visibility—
Dew point26°
Tue, 2065° / 51°0
65 °
Cold Spring Harbor, Tuesday, 20 October
Clear. High 65°, low 51°.
Pressure30.42 inHg
Wind8.4 mph W
Humidity42%
Visibility—
Dew point34°
Wed, 2159° / 54°0.01
59 °
Cold Spring Harbor, Wednesday, 21 October
Light rain. High 59°, low 54°.
Pressure30.65 inHg
Wind13.5 mph E
Humidity74%
Visibility—
Dew point48°
Thu, 2259° / 55°0
59 °
Cold Spring Harbor, Thursday, 22 October
Overcast. High 59°, low 55°.
Pressure30.68 inHg
Wind9.4 mph E
Humidity63%
Visibility—
Dew point43°
Fri, 2364° / 53°0
64 °
Cold Spring Harbor, Friday, 23 October
Clear. High 64°, low 53°.
Pressure30.47 inHg
Wind5.7 mph SW
Humidity66%
Visibility—
Dew point47°
Sat, 2468° / 58°0
68 °
Cold Spring Harbor, Saturday, 24 October
Overcast. High 68°, low 58°.
Pressure30.24 inHg
Wind12.2 mph S
Humidity69%
Visibility—
Dew point53°
Sun, 2569° / 61°0
69 °
Cold Spring Harbor, Sunday, 25 October
Overcast. High 69°, low 61°.
Pressure29.94 inHg
Wind13.9 mph NW
Humidity78%
Visibility—
Dew point58°
Mon, 2662° / 55°0.01
62 °
Cold Spring Harbor, Monday, 26 October
Light rain. High 62°, low 55°.
Pressure29.91 inHg
Wind10.9 mph NW
Humidity46%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2758° / 49°0.17
58 °
Cold Spring Harbor, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high58°
Average low49°
Average precipitation0.17 in
Chance of precipitation30%
Record high75° (2023)
Record low33° (1976)
Wed, 2858° / 48°0.18
58 °
Cold Spring Harbor, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high58°
Average low48°
Average precipitation0.18 in
Chance of precipitation28%
Record high79° (2023)
Record low33° (1976)
Thu, 2956° / 47°0.2
56 °
Cold Spring Harbor, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high56°
Average low47°
Average precipitation0.2 in
Chance of precipitation23%
Record high72° (1984)
Record low34° (1965)
Fri, 3056° / 46°0.11
56 °
Cold Spring Harbor, Friday, 30 October
Climate normal for this date — 60-year average.
Average high56°
Average low46°
Average precipitation0.11 in
Chance of precipitation25%
Record high71° (2024)
Record low36° (2011)
Sat, 3157° / 47°0.05
57 °
Cold Spring Harbor, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high57°
Average low47°
Average precipitation0.05 in
Chance of precipitation18%
Record high76° (2024)
Record low33° (2020)
Sun, 0158° / 49°0.13
58 °
Cold Spring Harbor, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high58°
Average low49°
Average precipitation0.13 in
Chance of precipitation28%
Record high78° (2024)
Record low38° (1976)
Mon, 0257° / 48°0.08
57 °
Cold Spring Harbor, Monday, 2 November
Climate normal for this date — 60-year average.
Average high57°
Average low48°
Average precipitation0.08 in
Chance of precipitation32%
Record high70° (1971)
Record low32° (1965)
Tue, 0357° / 47°0.11
57 °
Cold Spring Harbor, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high57°
Average low47°
Average precipitation0.11 in
Chance of precipitation28%
Record high71° (2017)
Record low36° (2023)
Wed, 0456° / 46°0.06
56 °
Cold Spring Harbor, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high56°
Average low46°
Average precipitation0.06 in
Chance of precipitation23%
Record high70° (2022)
Record low36° (2020)
Thu, 0556° / 46°0.13
56 °
Cold Spring Harbor, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high56°
Average low46°
Average precipitation0.13 in
Chance of precipitation32%
Record high72° (2022)
Record low37° (1965)
Fri, 0655° / 46°0.1
55 °
Cold Spring Harbor, Friday, 6 November
Climate normal for this date — 60-year average.
Average high55°
Average low46°
Average precipitation0.1 in
Chance of precipitation38%
Record high74° (2024)
Record low35° (1962)
Sat, 0755° / 45°0.1
55 °
Cold Spring Harbor, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high55°
Average low45°
Average precipitation0.1 in
Chance of precipitation27%
Record high75° (2022)
Record low32° (2025)
Sun, 0854° / 44°0.16
54 °
Cold Spring Harbor, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high54°
Average low44°
Average precipitation0.16 in
Chance of precipitation28%
Record high73° (2020)
Record low31° (2019)
Mon, 0954° / 44°0.09
54 °
Cold Spring Harbor, Monday, 9 November
Climate normal for this date — 60-year average.
Average high54°
Average low44°
Average precipitation0.09 in
Chance of precipitation23%
Record high73° (2020)
Record low26° (2019)
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 Cold Spring Harbor, 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 Cold Spring Harbor, 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.