Monthly outlook for Middle Island, NY: average high 54.8°, average low 46.2°. That is 0.9° above the climate normal for November. Precipitation is expected on 2 days (about 1.3 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 4 November (73.1°), the coolest 16 November (38.1°).
54.8°/46.2°
Average high / low
+0.9°
Above normal
2 / 5
Wet days / normal
1.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
4 November – 13 November
59.4°
54.3°
+2.9°
14 November – 23 November
47°
50.3°
-1.8°
24 November – 3 December
at normal
48.6°
—
November records over 66 years
75.4°1 November 2024All-time high
19°23 November 2018All-time low
Climate normals and records are computed from the nearest reference point — Brookhaven (4 mi).
Thu, 0571° / 58°0.02
71 °
Middle Island, Thursday, 5 November
Light rain. High 71°, low 58°.
Pressure29.91 inHg
Wind12.9 mph S
Humidity75%
Visibility6.2 mi
Dew point61°
Fri, 0668° / 60°0.82
68 °
Middle Island, Friday, 6 November
Rain. High 68°, low 60°.
Pressure29.88 inHg
Wind5.1 mph SW
Humidity86%
Visibility1.8 mi
Dew point64°
Sat, 0761° / 53°0.44
61 °
Middle Island, Saturday, 7 November
Heavy rain. High 61°, low 53°.
Pressure29.80 inHg
Wind3.9 mph N
Humidity83%
Visibility6.2 mi
Dew point56°
Sun, 0859° / 50°0
59 °
Middle Island, Sunday, 8 November
Clear. High 59°, low 50°.
Pressure29.80 inHg
Wind15.8 mph W
Humidity60%
Visibility6.2 mi
Dew point44°
Mon, 0953° / 48°0
53 °
Middle Island, Monday, 9 November
Overcast. High 53°, low 48°.
Pressure29.77 inHg
Wind20.9 mph NW
Humidity59%
Visibility—
Dew point37°
Tue, 1056° / 46°0
56 °
Middle Island, Tuesday, 10 November
Overcast. High 56°, low 46°.
Pressure30.00 inHg
Wind12.7 mph NW
Humidity61%
Visibility—
Dew point37°
Wed, 1157° / 51°0
57 °
Middle Island, Wednesday, 11 November
Mostly clear. High 57°, low 51°.
Pressure29.80 inHg
Wind11.7 mph N
Humidity48%
Visibility—
Dew point35°
Thu, 1251° / 42°0
51 °
Middle Island, Thursday, 12 November
Partly cloudy. High 51°, low 42°.
Pressure29.68 inHg
Wind18.7 mph NW
Humidity54%
Visibility—
Dew point34°
Fri, 1344° / 39°0
44 °
Middle Island, Friday, 13 November
Mostly clear. High 44°, low 39°.
Pressure29.80 inHg
Wind13.8 mph W
Humidity57%
Visibility—
Dew point26°
Sat, 1445° / 39°0
45 °
Middle Island, Saturday, 14 November
Clear. High 45°, low 39°.
Pressure29.85 inHg
Wind7.5 mph W
Humidity46%
Visibility—
Dew point23°
Sun, 1546° / 41°0
46 °
Middle Island, Sunday, 15 November
Overcast. High 46°, low 41°.
Pressure29.83 inHg
Wind17 mph NW
Humidity56%
Visibility—
Dew point29°
Mon, 1645° / 38°0
45 °
Middle Island, Monday, 16 November
Overcast. High 45°, low 38°.
Pressure29.97 inHg
Wind15.1 mph NW
Humidity66%
Visibility—
Dew point30°
Tue, 1747° / 40°0
47 °
Middle Island, Tuesday, 17 November
Partly cloudy. High 47°, low 40°.
Pressure30.27 inHg
Wind12.1 mph N
Humidity64%
Visibility—
Dew point31°
Wed, 1847° / 41°0
47 °
Middle Island, Wednesday, 18 November
Clear. High 47°, low 41°.
Pressure30.42 inHg
Wind10.2 mph N
Humidity59%
Visibility—
Dew point29°
Thu, 1951° / 43°0
51 °
Middle Island, Thursday, 19 November
Clear. High 51°, low 43°.
Pressure30.30 inHg
Wind7.6 mph W
Humidity56%
Visibility—
Dew point31°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2050° / 41°0.13
50 °
Middle Island, Friday, 20 November
Climate normal for this date — 60-year average.
Average high50°
Average low41°
Average precipitation0.13 in
Chance of precipitation28%
Record high65° (1985)
Record low29° (1984)
Sat, 2150° / 40°0.11
50 °
Middle Island, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.11 in
Chance of precipitation32%
Record high62° (2020)
Record low22° (1987)
Sun, 2249° / 40°0.16
49 °
Middle Island, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high49°
Average low40°
Average precipitation0.16 in
Chance of precipitation40%
Record high60° (1991)
Record low20° (2018)
Mon, 2348° / 39°0.13
48 °
Middle Island, Monday, 23 November
Climate normal for this date — 60-year average.
Average high48°
Average low39°
Average precipitation0.13 in
Chance of precipitation22%
Record high63° (1992)
Record low19° (2018)
Tue, 2449° / 40°0.1
49 °
Middle Island, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high49°
Average low40°
Average precipitation0.1 in
Chance of precipitation33%
Record high62° (1979)
Record low26° (2013)
Wed, 2549° / 39°0.15
49 °
Middle Island, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high49°
Average low39°
Average precipitation0.15 in
Chance of precipitation33%
Record high62° (1979)
Record low25° (2013)
Thu, 2650° / 41°0.22
50 °
Middle Island, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high50°
Average low41°
Average precipitation0.22 in
Chance of precipitation43%
Record high63° (1979)
Record low29° (2023)
Fri, 2750° / 41°0.13
50 °
Middle Island, Friday, 27 November
Climate normal for this date — 60-year average.
Average high50°
Average low41°
Average precipitation0.13 in
Chance of precipitation35%
Record high61° (1986)
Record low28° (1978)
Sat, 2850° / 41°0.17
50 °
Middle Island, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high50°
Average low41°
Average precipitation0.17 in
Chance of precipitation37%
Record high61° (1990)
Record low25° (2002)
Sun, 2949° / 39°0.11
49 °
Middle Island, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high49°
Average low39°
Average precipitation0.11 in
Chance of precipitation32%
Record high62° (2011)
Record low26° (2023)
Mon, 3047° / 38°0.15
47 °
Middle Island, Monday, 30 November
Climate normal for this date — 60-year average.
Average high47°
Average low38°
Average precipitation0.15 in
Chance of precipitation33%
Record high64° (2020)
Record low26° (1976)
Tue, 0147° / 38°0.13
47 °
Middle Island, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high47°
Average low38°
Average precipitation0.13 in
Chance of precipitation38%
Record high63° (2001)
Record low24° (1964)
Wed, 0247° / 37°0.15
47 °
Middle Island, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high47°
Average low37°
Average precipitation0.15 in
Chance of precipitation32%
Record high59° (2023)
Record low22° (1989)
Thu, 0347° / 37°0.15
47 °
Middle Island, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high47°
Average low37°
Average precipitation0.15 in
Chance of precipitation33%
Record high61° (2009)
Record low17° (1976)
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 Middle Island, 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 Middle Island, 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.