Monthly outlook for Mount Sinai, NY: average high 55.7°, average low 48.4°. That is 1.9° above the climate normal for November. Precipitation is expected on 6 days (about 2.5 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 6 November (70.6°), the coolest 14 November (39.2°).
55.7°/48.4°
Average high / low
+1.9°
Above normal
6 / 5
Wet days / normal
2.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
5 November – 14 November
56.9°
53.4°
+1.9°
15 November – 24 November
53.9°
49.6°
+2.4°
25 November – 4 December
at normal
47.6°
—
November records over 66 years
79.9°1 November 2024All-time high
18.9°23 November 2018All-time low
Climate normals and records are computed from the nearest reference point — Stony Brook University (6 mi).
Fri, 0671° / 57°1.05
71 °
Mount Sinai, Friday, 6 November
Heavy rain. High 71°, low 57°.
Pressure29.85 inHg
Wind3.2 mph N
Humidity98%
Visibility1.6 mi
Dew point62°
Sat, 0760° / 50°0.19
60 °
Mount Sinai, Saturday, 7 November
Light rain. High 60°, low 50°.
Pressure29.80 inHg
Wind2.7 mph NE
Humidity82%
Visibility6.2 mi
Dew point54°
Sun, 0858° / 50°0.06
58 °
Mount Sinai, Sunday, 8 November
Light rain. High 58°, low 50°.
Pressure29.85 inHg
Wind17.8 mph W
Humidity61%
Visibility6.2 mi
Dew point45°
Mon, 0954° / 51°0.01
54 °
Mount Sinai, Monday, 9 November
Light rain. High 54°, low 51°.
Pressure29.85 inHg
Wind25.4 mph NW
Humidity62%
Visibility—
Dew point40°
Tue, 1059° / 48°0
59 °
Mount Sinai, Tuesday, 10 November
Partly cloudy. High 59°, low 48°.
Pressure29.94 inHg
Wind18.5 mph SW
Humidity73%
Visibility—
Dew point42°
Wed, 1156° / 52°0
56 °
Mount Sinai, Wednesday, 11 November
Overcast. High 56°, low 52°.
Pressure29.83 inHg
Wind16.2 mph W
Humidity61%
Visibility—
Dew point40°
Thu, 1250° / 44°0
50 °
Mount Sinai, Thursday, 12 November
Clear. High 50°, low 44°.
Pressure29.77 inHg
Wind14.6 mph N
Humidity61%
Visibility—
Dew point33°
Fri, 1345° / 39°0
45 °
Mount Sinai, Friday, 13 November
Overcast. High 45°, low 39°.
Pressure29.68 inHg
Wind18.1 mph NW
Humidity63%
Visibility—
Dew point29°
Sat, 1447° / 39°0
47 °
Mount Sinai, Saturday, 14 November
Overcast. High 47°, low 39°.
Pressure29.83 inHg
Wind18 mph NW
Humidity61%
Visibility—
Dew point29°
Sun, 1550° / 42°0.02
50 °
Mount Sinai, Sunday, 15 November
Light rain. High 50°, low 42°.
Pressure29.97 inHg
Wind15.2 mph NW
Humidity69%
Visibility—
Dew point36°
Mon, 1652° / 45°0
52 °
Mount Sinai, Monday, 16 November
Clear. High 52°, low 45°.
Pressure30.18 inHg
Wind10.3 mph NW
Humidity65%
Visibility—
Dew point35°
Tue, 1754° / 48°0.27
54 °
Mount Sinai, Tuesday, 17 November
Light rain. High 54°, low 48°.
Pressure30.09 inHg
Wind10 mph NE
Humidity91%
Visibility—
Dew point47°
Wed, 1856° / 50°0.02
56 °
Mount Sinai, Wednesday, 18 November
Light rain. High 56°, low 50°.
Pressure30.12 inHg
Wind10.2 mph E
Humidity89%
Visibility—
Dew point50°
Thu, 1960° / 55°0.76
60 °
Mount Sinai, Thursday, 19 November
Rain. High 60°, low 55°.
Pressure29.88 inHg
Wind21.3 mph W
Humidity90%
Visibility—
Dew point55°
Fri, 2051° / 45°0
51 °
Mount Sinai, Friday, 20 November
Clear. High 51°, low 45°.
Pressure29.91 inHg
Wind24.9 mph NW
Humidity63%
Visibility—
Dew point35°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2149° / 39°0.11
49 °
Mount Sinai, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high49°
Average low39°
Average precipitation0.11 in
Chance of precipitation33%
Record high61° (1991)
Record low21° (1987)
Sun, 2248° / 39°0.16
48 °
Mount Sinai, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high48°
Average low39°
Average precipitation0.16 in
Chance of precipitation40%
Record high61° (2007)
Record low20° (2018)
Mon, 2347° / 38°0.13
47 °
Mount Sinai, Monday, 23 November
Climate normal for this date — 60-year average.
Average high47°
Average low38°
Average precipitation0.13 in
Chance of precipitation22%
Record high64° (1992)
Record low19° (2018)
Tue, 2449° / 39°0.1
49 °
Mount Sinai, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high49°
Average low39°
Average precipitation0.1 in
Chance of precipitation33%
Record high62° (1979)
Record low25° (2013)
Wed, 2549° / 38°0.15
49 °
Mount Sinai, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high49°
Average low38°
Average precipitation0.15 in
Chance of precipitation33%
Record high64° (1979)
Record low24° (2005)
Thu, 2650° / 39°0.22
50 °
Mount Sinai, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high50°
Average low39°
Average precipitation0.22 in
Chance of precipitation43%
Record high64° (1979)
Record low26° (2023)
Fri, 2750° / 39°0.13
50 °
Mount Sinai, Friday, 27 November
Climate normal for this date — 60-year average.
Average high50°
Average low39°
Average precipitation0.13 in
Chance of precipitation37%
Record high61° (1986)
Record low27° (1978)
Sat, 2850° / 40°0.17
50 °
Mount Sinai, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.17 in
Chance of precipitation35%
Record high62° (1990)
Record low24° (2002)
Sun, 2948° / 38°0.11
48 °
Mount Sinai, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high48°
Average low38°
Average precipitation0.11 in
Chance of precipitation32%
Record high63° (2011)
Record low26° (2023)
Mon, 3047° / 37°0.15
47 °
Mount Sinai, Monday, 30 November
Climate normal for this date — 60-year average.
Average high47°
Average low37°
Average precipitation0.15 in
Chance of precipitation33%
Record high64° (2020)
Record low25° (1976)
Tue, 0147° / 37°0.14
47 °
Mount Sinai, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high47°
Average low37°
Average precipitation0.14 in
Chance of precipitation37%
Record high64° (2001)
Record low23° (1964)
Wed, 0246° / 36°0.14
46 °
Mount Sinai, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high46°
Average low36°
Average precipitation0.14 in
Chance of precipitation32%
Record high61° (2023)
Record low21° (1989)
Thu, 0346° / 36°0.15
46 °
Mount Sinai, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high46°
Average low36°
Average precipitation0.15 in
Chance of precipitation33%
Record high60° (2009)
Record low16° (1976)
Fri, 0445° / 35°0.12
45 °
Mount Sinai, Friday, 4 December
Climate normal for this date — 60-year average.
Average high45°
Average low35°
Average precipitation0.12 in
Chance of precipitation23%
Record high65° (1998)
Record low17° (1989)
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 Mount Sinai, 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 Mount Sinai, 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.