Monthly outlook for Water Mill, NY: average high 58°, average low 49.2°. That is 0.7° below the climate normal for October. Precipitation is expected on 4 days (about 0.4 inches), against a normal of 5 days and 2.3 inches. The warmest day looks like 16 October (70°), the coolest 29 October (44.7°).
58°/49.2°
Average high / low
−0.7°
Below normal
4 / 5
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
58.8°
60.1°
-0.7°
25 October – 3 November
56.8°
57.6°
-0.4°
4 November – 13 November
at normal
54.6°
—
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).
Fri, 1670° / 52°0.14
70 °
Water Mill, Friday, 16 October
Rain. High 70°, low 52°.
Pressure29.80 inHg
Wind18.9 mph S
Humidity89%
Visibility4.0 mi
Dew point63°
Sat, 1764° / 49°0.11
64 °
Water Mill, Saturday, 17 October
Rain. High 64°, low 49°.
Pressure30.06 inHg
Wind21.5 mph NW
Humidity61%
Visibility6.2 mi
Dew point39°
Sun, 1852° / 47°0
52 °
Water Mill, Sunday, 18 October
Clear. High 52°, low 47°.
Pressure30.59 inHg
Wind4.5 mph N
Humidity53%
Visibility6.2 mi
Dew point31°
Mon, 1959° / 52°0
59 °
Water Mill, Monday, 19 October
Clear. High 59°, low 52°.
Pressure30.56 inHg
Wind7.8 mph SW
Humidity66%
Visibility6.2 mi
Dew point47°
Tue, 2059° / 52°0
59 °
Water Mill, Tuesday, 20 October
Partly cloudy. High 59°, low 52°.
Pressure30.36 inHg
Wind5.9 mph SW
Humidity87%
Visibility—
Dew point51°
Wed, 2160° / 55°0
60 °
Water Mill, Wednesday, 21 October
Mostly clear. High 60°, low 55°.
Pressure30.33 inHg
Wind13.7 mph N
Humidity69%
Visibility—
Dew point47°
Thu, 2255° / 52°0
55 °
Water Mill, Thursday, 22 October
Mostly clear. High 55°, low 52°.
Pressure30.39 inHg
Wind10 mph NE
Humidity67%
Visibility—
Dew point44°
Fri, 2356° / 46°0.05
56 °
Water Mill, Friday, 23 October
Light rain. High 56°, low 46°.
Pressure30.30 inHg
Wind28.1 mph NE
Humidity68%
Visibility—
Dew point44°
Sat, 2451° / 46°0
51 °
Water Mill, Saturday, 24 October
Partly cloudy. High 51°, low 46°.
Pressure30.59 inHg
Wind24.5 mph NE
Humidity67%
Visibility—
Dew point36°
Sun, 2554° / 46°0
54 °
Water Mill, Sunday, 25 October
Partly cloudy. High 54°, low 46°.
Pressure30.47 inHg
Wind22.7 mph NE
Humidity69%
Visibility—
Dew point39°
Mon, 2660° / 47°0
60 °
Water Mill, Monday, 26 October
Clear. High 60°, low 47°.
Pressure30.30 inHg
Wind19 mph N
Humidity46%
Visibility—
Dew point31°
Tue, 2758° / 48°0
58 °
Water Mill, Tuesday, 27 October
Overcast. High 58°, low 48°.
Pressure30.39 inHg
Wind18.3 mph SW
Humidity62%
Visibility—
Dew point38°
Wed, 2860° / 48°0
60 °
Water Mill, Wednesday, 28 October
Overcast. High 60°, low 48°.
Pressure30.03 inHg
Wind21.5 mph W
Humidity71%
Visibility—
Dew point50°
Thu, 2951° / 45°0
51 °
Water Mill, Thursday, 29 October
Overcast. High 51°, low 45°.
Pressure30.36 inHg
Wind16.5 mph N
Humidity56%
Visibility—
Dew point33°
Fri, 3059° / 52°0.14
59 °
Water Mill, Friday, 30 October
Light rain. High 59°, low 52°.
Pressure30.18 inHg
Wind10.2 mph SW
Humidity83%
Visibility—
Dew point50°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3157° / 50°0.07
57 °
Water Mill, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high57°
Average low50°
Average precipitation0.07 in
Chance of precipitation22%
Record high73° (2024)
Record low38° (1988)
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)
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.