Monthly outlook for Mamaroneck, NY: average high 64.6°, average low 49.3°. That is 2.4° above the climate normal for October. Precipitation is expected on 1 day (about 0.3 inches), against a normal of 4 days and 2.1 inches. The warmest day looks like 16 October (80.7°), the coolest 18 October (38.3°).
64.6°/49.3°
Average high / low
+2.4°
Above normal
1 / 4
Wet days / normal
0.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
63.7°
61.5°
+1.2°
25 October – 3 November
66.2°
58.2°
+4.5°
4 November – 13 November
at normal
54°
—
October records over 66 years
89.8°2 October 2019All-time high
31.3°20 October 1972All-time low
Climate normals and records are computed from the nearest reference point — Larchmont (1 mi).
Fri, 1681° / 57°0.33
81 °
Mamaroneck, Friday, 16 October
Rain. High 81°, low 57°.
Pressure29.77 inHg
Wind8.3 mph SW
Humidity93%
Visibility6.2 mi
Dew point65°
Sat, 1763° / 43°0
63 °
Mamaroneck, Saturday, 17 October
Partly cloudy. High 63°, low 43°.
Pressure30.15 inHg
Wind12.2 mph NW
Humidity46%
Visibility6.2 mi
Dew point32°
Sun, 1855° / 38°0
55 °
Mamaroneck, Sunday, 18 October
Clear. High 55°, low 38°.
Pressure30.62 inHg
Wind1.9 mph NE
Humidity51%
Visibility6.2 mi
Dew point34°
Mon, 1960° / 42°0
60 °
Mamaroneck, Monday, 19 October
Clear. High 60°, low 42°.
Pressure30.50 inHg
Wind5.8 mph NE
Humidity49%
Visibility6.2 mi
Dew point38°
Tue, 2065° / 48°0
65 °
Mamaroneck, Tuesday, 20 October
Overcast. High 65°, low 48°.
Pressure30.24 inHg
Wind10 mph N
Humidity50%
Visibility—
Dew point38°
Wed, 2162° / 49°0
62 °
Mamaroneck, Wednesday, 21 October
Clear. High 62°, low 49°.
Pressure30.30 inHg
Wind10 mph NE
Humidity47%
Visibility—
Dew point37°
Thu, 2257° / 47°0
57 °
Mamaroneck, Thursday, 22 October
Clear. High 57°, low 47°.
Pressure30.47 inHg
Wind6.9 mph NE
Humidity51%
Visibility—
Dew point36°
Fri, 2368° / 50°0
68 °
Mamaroneck, Friday, 23 October
Clear. High 68°, low 50°.
Pressure30.30 inHg
Wind6.8 mph N
Humidity52%
Visibility—
Dew point40°
Sat, 2460° / 50°0
60 °
Mamaroneck, Saturday, 24 October
Clear. High 60°, low 50°.
Pressure30.39 inHg
Wind8.4 mph N
Humidity56%
Visibility—
Dew point39°
Sun, 2557° / 46°0
57 °
Mamaroneck, Sunday, 25 October
Clear. High 57°, low 46°.
Pressure30.50 inHg
Wind9 mph NE
Humidity49%
Visibility—
Dew point33°
Mon, 2669° / 50°0
69 °
Mamaroneck, Monday, 26 October
Clear. High 69°, low 50°.
Pressure30.39 inHg
Wind9.1 mph NW
Humidity49%
Visibility—
Dew point39°
Tue, 2762° / 49°0
62 °
Mamaroneck, Tuesday, 27 October
Partly cloudy. High 62°, low 49°.
Pressure30.45 inHg
Wind9.4 mph N
Humidity50%
Visibility—
Dew point37°
Wed, 2866° / 52°0
66 °
Mamaroneck, Wednesday, 28 October
Overcast. High 66°, low 52°.
Pressure30.45 inHg
Wind6.2 mph SW
Humidity43%
Visibility—
Dew point36°
Thu, 2971° / 56°0
71 °
Mamaroneck, Thursday, 29 October
Partly cloudy. High 71°, low 56°.
Pressure30.30 inHg
Wind8.8 mph SW
Humidity55%
Visibility—
Dew point47°
Fri, 3072° / 58°0
72 °
Mamaroneck, Friday, 30 October
Partly cloudy. High 72°, low 58°.
Pressure30.15 inHg
Wind8.1 mph SW
Humidity49%
Visibility—
Dew point45°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3157° / 45°0.06
57 °
Mamaroneck, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high57°
Average low45°
Average precipitation0.06 in
Chance of precipitation23%
Record high80° (2024)
Record low33° (1988)
Sun, 0158° / 46°0.1
58 °
Mamaroneck, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high58°
Average low46°
Average precipitation0.1 in
Chance of precipitation27%
Record high78° (2024)
Record low36° (1976)
Mon, 0258° / 46°0.09
58 °
Mamaroneck, Monday, 2 November
Climate normal for this date — 60-year average.
Average high58°
Average low46°
Average precipitation0.09 in
Chance of precipitation35%
Record high74° (1982)
Record low31° (1965)
Tue, 0358° / 45°0.1
58 °
Mamaroneck, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high58°
Average low45°
Average precipitation0.1 in
Chance of precipitation23%
Record high75° (2003)
Record low35° (1996)
Wed, 0457° / 44°0.05
57 °
Mamaroneck, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high57°
Average low44°
Average precipitation0.05 in
Chance of precipitation20%
Record high72° (1975)
Record low34° (2013)
Thu, 0556° / 44°0.12
56 °
Mamaroneck, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high56°
Average low44°
Average precipitation0.12 in
Chance of precipitation33%
Record high72° (2022)
Record low35° (1965)
Fri, 0655° / 44°0.08
55 °
Mamaroneck, Friday, 6 November
Climate normal for this date — 60-year average.
Average high55°
Average low44°
Average precipitation0.08 in
Chance of precipitation30%
Record high79° (2024)
Record low33° (1962)
Sat, 0755° / 43°0.09
55 °
Mamaroneck, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high55°
Average low43°
Average precipitation0.09 in
Chance of precipitation27%
Record high75° (2022)
Record low31° (1962)
Sun, 0854° / 42°0.15
54 °
Mamaroneck, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high54°
Average low42°
Average precipitation0.15 in
Chance of precipitation28%
Record high71° (1975)
Record low31° (1976)
Mon, 0954° / 42°0.08
54 °
Mamaroneck, Monday, 9 November
Climate normal for this date — 60-year average.
Average high54°
Average low42°
Average precipitation0.08 in
Chance of precipitation23%
Record high72° (1975)
Record low28° (1976)
Tue, 1055° / 42°0.15
55 °
Mamaroneck, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high55°
Average low42°
Average precipitation0.15 in
Chance of precipitation37%
Record high69° (2020)
Record low27° (2017)
Wed, 1153° / 42°0.14
53 °
Mamaroneck, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high53°
Average low42°
Average precipitation0.14 in
Chance of precipitation35%
Record high69° (2020)
Record low26° (2017)
Thu, 1252° / 40°0.13
52 °
Mamaroneck, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high52°
Average low40°
Average precipitation0.13 in
Chance of precipitation40%
Record high68° (2022)
Record low28° (2019)
Fri, 1350° / 39°0.19
50 °
Mamaroneck, Friday, 13 November
Climate normal for this date — 60-year average.
Average high50°
Average low39°
Average precipitation0.19 in
Chance of precipitation37%
Record high69° (1964)
Record low23° (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 Mamaroneck, 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 Mamaroneck, 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.