Monthly outlook for Water Mill, NY: average high 59°, average low 50.4°. That is 0.1° above the climate normal for October. Precipitation is expected on 6 days (about 1.0 inches), against a normal of 5 days and 2.3 inches. The warmest day looks like 16 October (68.2°), the coolest 18 October (40.2°).
59°/50.4°
Average high / low
+0.1°
Above normal
6 / 5
Wet days / normal
1.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
16 October – 25 October
59.7°
59.8°
-0.1°
26 October – 4 November
57.9°
57.3°
+0.4°
5 November – 14 November
at normal
54.1°
—
October records over 66 years
78.6°2 October 2019All-time high
34.3°27 October 1976All-time low
Climate normals and records are computed from the nearest reference point — Sagaponack (4 mi).
Sat, 1762° / 42°0.21
62 °
Water Mill, Saturday, 17 October
Rain. High 62°, low 42°.
Pressure30.12 inHg
Wind21.6 mph N
Humidity62%
Visibility6.2 mi
Dew point39°
Sun, 1854° / 40°0
54 °
Water Mill, Sunday, 18 October
Clear. High 54°, low 40°.
Pressure30.56 inHg
Wind11.6 mph N
Humidity50%
Visibility6.2 mi
Dew point34°
Mon, 1959° / 53°0
59 °
Water Mill, Monday, 19 October
Overcast. High 59°, low 53°.
Pressure30.42 inHg
Wind15 mph NE
Humidity66%
Visibility6.2 mi
Dew point44°
Tue, 2062° / 55°0
62 °
Water Mill, Tuesday, 20 October
Overcast. High 62°, low 55°.
Pressure30.18 inHg
Wind18.9 mph NE
Humidity66%
Visibility6.2 mi
Dew point47°
Wed, 2156° / 52°0
56 °
Water Mill, Wednesday, 21 October
Overcast. High 56°, low 52°.
Pressure30.27 inHg
Wind24.3 mph NE
Humidity76%
Visibility—
Dew point46°
Thu, 2256° / 50°0.02
56 °
Water Mill, Thursday, 22 October
Light rain. High 56°, low 50°.
Pressure30.09 inHg
Wind22 mph NE
Humidity77%
Visibility—
Dew point45°
Fri, 2360° / 51°0
60 °
Water Mill, Friday, 23 October
Mostly clear. High 60°, low 51°.
Pressure30.18 inHg
Wind22.5 mph NE
Humidity55%
Visibility—
Dew point39°
Sat, 2457° / 49°0
57 °
Water Mill, Saturday, 24 October
Mostly clear. High 57°, low 49°.
Pressure30.30 inHg
Wind23.4 mph NE
Humidity65%
Visibility—
Dew point41°
Sun, 2561° / 50°0
61 °
Water Mill, Sunday, 25 October
Overcast. High 61°, low 50°.
Pressure30.06 inHg
Wind19.8 mph N
Humidity56%
Visibility—
Dew point39°
Mon, 2656° / 46°0
56 °
Water Mill, Monday, 26 October
Clear. High 56°, low 46°.
Pressure30.15 inHg
Wind29.8 mph NW
Humidity54%
Visibility—
Dew point33°
Tue, 2756° / 48°0
56 °
Water Mill, Tuesday, 27 October
Overcast. High 56°, low 48°.
Pressure30.27 inHg
Wind10.9 mph W
Humidity45%
Visibility—
Dew point30°
Wed, 2858° / 53°0.11
58 °
Water Mill, Wednesday, 28 October
Light rain. High 58°, low 53°.
Pressure30.03 inHg
Wind15.2 mph SW
Humidity93%
Visibility—
Dew point52°
Thu, 2959° / 55°0.16
59 °
Water Mill, Thursday, 29 October
Light rain. High 59°, low 55°.
Pressure30.00 inHg
Wind16.3 mph NE
Humidity86%
Visibility—
Dew point52°
Fri, 3058° / 54°0.28
58 °
Water Mill, Friday, 30 October
Rain. High 58°, low 54°.
Pressure30.06 inHg
Wind12.4 mph E
Humidity90%
Visibility—
Dew point52°
Sat, 3161° / 59°0.17
61 °
Water Mill, Saturday, 31 October
Light rain. High 61°, low 59°.
Pressure29.71 inHg
Wind17.1 mph S
Humidity85%
Visibility—
Dew point56°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0158° / 51°0.15
58 °
Water Mill, 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, 0258° / 51°0.1
58 °
Water Mill, Monday, 2 November
Climate normal for this date — 60-year average.
Average high58°
Average low51°
Average precipitation0.1 in
Chance of precipitation35%
Record high67° (1971)
Record low33° (1965)
Tue, 0357° / 49°0.15
57 °
Water Mill, 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 °
Water Mill, 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 °
Water Mill, 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 °
Water Mill, 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° / 48°0.09
55 °
Water Mill, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high55°
Average low48°
Average precipitation0.09 in
Chance of precipitation32%
Record high72° (2022)
Record low35° (1962)
Sun, 0854° / 46°0.16
54 °
Water Mill, 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 °
Water Mill, 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 low32° (1971)
Tue, 1055° / 47°0.2
55 °
Water Mill, 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° / 47°0.18
54 °
Water Mill, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high54°
Average low47°
Average precipitation0.18 in
Chance of precipitation35%
Record high67° (2024)
Record low28° (2017)
Thu, 1253° / 45°0.19
53 °
Water Mill, 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 °
Water Mill, Friday, 13 November
Climate normal for this date — 60-year average.
Average high52°
Average low44°
Average precipitation0.24 in
Chance of precipitation42%
Record high63° (1964)
Record low27° (2019)
Sat, 1451° / 44°0.13
51 °
Water Mill, 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 Water Mill, 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 Water Mill, 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.