Monthly outlook for Tappan, NY: average high 64.8°, average low 50.9°. That is 2° above the climate normal for October. Precipitation is expected on 1 day (about 0.7 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 24 October (77.2°), the coolest 18 October (38.1°).
64.8°/50.9°
Average high / low
+2°
Above normal
1 / 5
Wet days / normal
0.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 October – 22 October
65.3°
62.4°
+1.6°
23 October – 1 November
64°
58.7°
+3°
2 November – 11 November
at normal
55.5°
—
October records over 66 years
87.8°2 October 2019All-time high
29.7°28 October 1976All-time low
Climate normals and records are computed from the nearest reference point — South Nyack (4 mi).
Wed, 1474° / 62°0.01
74 °
Tappan, Wednesday, 14 October
Light rain. High 74°, low 62°.
Pressure29.88 inHg
Wind7.7 mph W
Humidity68%
Visibility6.2 mi
Dew point63°
Thu, 1562° / 53°0
62 °
Tappan, Thursday, 15 October
Mostly clear. High 62°, low 53°.
Pressure30.24 inHg
Wind5.8 mph N
Humidity58%
Visibility6.2 mi
Dew point44°
Fri, 1673° / 53°0.72
73 °
Tappan, Friday, 16 October
Heavy rain. High 73°, low 53°.
Pressure29.56 inHg
Wind13 mph SW
Humidity92%
Visibility6.1 mi
Dew point65°
Sat, 1751° / 39°0
51 °
Tappan, Saturday, 17 October
Mostly clear. High 51°, low 39°.
Pressure30.06 inHg
Wind16.8 mph NW
Humidity51%
Visibility—
Dew point31°
Sun, 1857° / 38°0
57 °
Tappan, Sunday, 18 October
Clear. High 57°, low 38°.
Pressure30.45 inHg
Wind9.9 mph SW
Humidity58%
Visibility—
Dew point35°
Mon, 1962° / 45°0
62 °
Tappan, Monday, 19 October
Overcast. High 62°, low 45°.
Pressure30.53 inHg
Wind7.9 mph SW
Humidity44%
Visibility—
Dew point32°
Tue, 2068° / 54°0
68 °
Tappan, Tuesday, 20 October
Overcast. High 68°, low 54°.
Pressure30.45 inHg
Wind5.4 mph SW
Humidity61%
Visibility—
Dew point47°
Wed, 2171° / 54°0
71 °
Tappan, Wednesday, 21 October
Clear. High 71°, low 54°.
Pressure30.39 inHg
Wind4.9 mph N
Humidity50%
Visibility—
Dew point44°
Thu, 2265° / 55°0
65 °
Tappan, Thursday, 22 October
Mostly clear. High 65°, low 55°.
Pressure30.36 inHg
Wind4.8 mph SE
Humidity58%
Visibility—
Dew point47°
Fri, 2372° / 58°0
72 °
Tappan, Friday, 23 October
Overcast. High 72°, low 58°.
Pressure30.33 inHg
Wind9.6 mph SW
Humidity58%
Visibility—
Dew point49°
Sat, 2477° / 61°0
77 °
Tappan, Saturday, 24 October
Overcast. High 77°, low 61°.
Pressure30.00 inHg
Wind12.7 mph W
Humidity57%
Visibility—
Dew point52°
Sun, 2565° / 52°0
65 °
Tappan, Sunday, 25 October
Overcast. High 65°, low 52°.
Pressure30.00 inHg
Wind10 mph NW
Humidity48%
Visibility—
Dew point39°
Mon, 2656° / 48°0
56 °
Tappan, Monday, 26 October
Overcast. High 56°, low 48°.
Pressure30.00 inHg
Wind13.4 mph NW
Humidity48%
Visibility—
Dew point34°
Tue, 2754° / 43°0
54 °
Tappan, Tuesday, 27 October
Clear. High 54°, low 43°.
Pressure30.18 inHg
Wind10.6 mph NW
Humidity38%
Visibility—
Dew point24°
Wed, 2860° / 44°0
60 °
Tappan, Wednesday, 28 October
Clear. High 60°, low 44°.
Pressure29.94 inHg
Wind11.7 mph SW
Humidity46%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2957° / 44°0.2
57 °
Tappan, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high57°
Average low44°
Average precipitation0.2 in
Chance of precipitation25%
Record high72° (1984)
Record low32° (1965)
Fri, 3057° / 43°0.1
57 °
Tappan, Friday, 30 October
Climate normal for this date — 60-year average.
Average high57°
Average low43°
Average precipitation0.1 in
Chance of precipitation22%
Record high77° (2024)
Record low33° (1962)
Sat, 3158° / 43°0.06
58 °
Tappan, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high58°
Average low43°
Average precipitation0.06 in
Chance of precipitation18%
Record high81° (2024)
Record low31° (1988)
Sun, 0158° / 45°0.1
58 °
Tappan, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high58°
Average low45°
Average precipitation0.1 in
Chance of precipitation25%
Record high78° (2024)
Record low34° (1983)
Mon, 0258° / 45°0.1
58 °
Tappan, Monday, 2 November
Climate normal for this date — 60-year average.
Average high58°
Average low45°
Average precipitation0.1 in
Chance of precipitation33%
Record high75° (1982)
Record low31° (1976)
Tue, 0358° / 44°0.09
58 °
Tappan, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high58°
Average low44°
Average precipitation0.09 in
Chance of precipitation23%
Record high76° (2003)
Record low34° (2023)
Wed, 0457° / 43°0.05
57 °
Tappan, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high57°
Average low43°
Average precipitation0.05 in
Chance of precipitation20%
Record high72° (1975)
Record low33° (2006)
Thu, 0556° / 43°0.13
56 °
Tappan, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high56°
Average low43°
Average precipitation0.13 in
Chance of precipitation32%
Record high73° (2022)
Record low33° (1962)
Fri, 0655° / 43°0.08
55 °
Tappan, Friday, 6 November
Climate normal for this date — 60-year average.
Average high55°
Average low43°
Average precipitation0.08 in
Chance of precipitation32%
Record high79° (2024)
Record low31° (2012)
Sat, 0755° / 41°0.09
55 °
Tappan, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.09 in
Chance of precipitation25%
Record high73° (2022)
Record low28° (1962)
Sun, 0854° / 41°0.15
54 °
Tappan, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high54°
Average low41°
Average precipitation0.15 in
Chance of precipitation27%
Record high71° (2020)
Record low29° (1960)
Mon, 0954° / 40°0.08
54 °
Tappan, Monday, 9 November
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.08 in
Chance of precipitation23%
Record high73° (1975)
Record low25° (2019)
Tue, 1055° / 41°0.15
55 °
Tappan, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.15 in
Chance of precipitation38%
Record high71° (2020)
Record low26° (2017)
Wed, 1153° / 41°0.14
53 °
Tappan, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high53°
Average low41°
Average precipitation0.14 in
Chance of precipitation37%
Record high68° (2020)
Record low25° (2017)
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 Tappan, 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 Tappan, 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.