Monthly outlook for Middle Island, NY: average high 52.4°, average low 43.5°. That is 1.2° above the climate normal for November. Precipitation is expected on 3 days (about 1.4 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 25 November (63.7°), the coolest 27 November (31.2°).
52.4°/43.5°
Average high / low
+1.2°
Above normal
3 / 5
Wet days / normal
1.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 November – 22 November
51.9°
50.6°
+0.7°
23 November – 2 December
53.2°
48.7°
+2.5°
3 December – 12 December
at normal
44.8°
—
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).
Sat, 1448° / 37°0
48 °
Middle Island, Saturday, 14 November
Overcast. High 48°, low 37°.
Pressure29.74 inHg
Wind12.2 mph NW
Humidity60%
Visibility6.2 mi
Dew point28°
Sun, 1548° / 40°0
48 °
Middle Island, Sunday, 15 November
Partly cloudy. High 48°, low 40°.
Pressure30.09 inHg
Wind14.3 mph NW
Humidity56%
Visibility6.2 mi
Dew point30°
Mon, 1649° / 39°0
49 °
Middle Island, Monday, 16 November
Overcast. High 49°, low 39°.
Pressure30.39 inHg
Wind12.1 mph NW
Humidity58%
Visibility6.2 mi
Dew point34°
Tue, 1751° / 39°0
51 °
Middle Island, Tuesday, 17 November
Clear. High 51°, low 39°.
Pressure30.50 inHg
Wind7.1 mph NW
Humidity74%
Visibility—
Dew point37°
Wed, 1854° / 41°0
54 °
Middle Island, Wednesday, 18 November
Clear. High 54°, low 41°.
Pressure30.42 inHg
Wind6.5 mph W
Humidity72%
Visibility—
Dew point39°
Thu, 1956° / 48°0
56 °
Middle Island, Thursday, 19 November
Clear. High 56°, low 48°.
Pressure30.39 inHg
Wind8.6 mph SW
Humidity53%
Visibility—
Dew point35°
Fri, 2059° / 51°0
59 °
Middle Island, Friday, 20 November
Overcast. High 59°, low 51°.
Pressure30.27 inHg
Wind12 mph W
Humidity63%
Visibility—
Dew point42°
Sat, 2152° / 49°0
52 °
Middle Island, Saturday, 21 November
Clear. High 52°, low 49°.
Pressure30.33 inHg
Wind10.6 mph N
Humidity71%
Visibility—
Dew point41°
Sun, 2257° / 50°0
57 °
Middle Island, Sunday, 22 November
Overcast. High 57°, low 50°.
Pressure30.24 inHg
Wind11.8 mph W
Humidity67%
Visibility—
Dew point43°
Mon, 2360° / 53°0
60 °
Middle Island, Monday, 23 November
Partly cloudy. High 60°, low 53°.
Pressure30.30 inHg
Wind11.2 mph SW
Humidity75%
Visibility—
Dew point49°
Tue, 2463° / 56°0
63 °
Middle Island, Tuesday, 24 November
Overcast. High 63°, low 56°.
Pressure30.27 inHg
Wind15.6 mph S
Humidity79%
Visibility—
Dew point55°
Wed, 2564° / 49°0.43
64 °
Middle Island, Wednesday, 25 November
Rain. High 64°, low 49°.
Pressure30.03 inHg
Wind19.5 mph S
Humidity85%
Visibility—
Dew point58°
Thu, 2649° / 35°0.76
49 °
Middle Island, Thursday, 26 November
Rain. High 49°, low 35°.
Pressure29.85 inHg
Wind25.7 mph N
Humidity88%
Visibility—
Dew point39°
Fri, 2739° / 31°0
39 °
Middle Island, Friday, 27 November
Light rain. High 39°, low 31°.
Pressure30.15 inHg
Wind20.6 mph N
Humidity52%
Visibility—
Dew point18°
Sat, 2845° / 36°0
45 °
Middle Island, Saturday, 28 November
Overcast. High 45°, low 36°.
Pressure30.45 inHg
Wind12.8 mph NE
Humidity74%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Fri, 0446° / 36°0.12
46 °
Middle Island, Friday, 4 December
Climate normal for this date — 60-year average.
Average high46°
Average low36°
Average precipitation0.12 in
Chance of precipitation23%
Record high64° (1998)
Record low18° (1989)
Sat, 0544° / 36°0.17
44 °
Middle Island, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high44°
Average low36°
Average precipitation0.17 in
Chance of precipitation30%
Record high62° (2001)
Record low20° (2025)
Sun, 0646° / 37°0.18
46 °
Middle Island, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high46°
Average low37°
Average precipitation0.18 in
Chance of precipitation48%
Record high62° (2001)
Record low25° (2007)
Mon, 0745° / 36°0.15
45 °
Middle Island, Monday, 7 December
Climate normal for this date — 60-year average.
Average high45°
Average low36°
Average precipitation0.15 in
Chance of precipitation33%
Record high67° (1998)
Record low23° (1964)
Tue, 0843° / 35°0.12
43 °
Middle Island, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high43°
Average low35°
Average precipitation0.12 in
Chance of precipitation33%
Record high56° (1978)
Record low21° (2006)
Wed, 0945° / 35°0.23
45 °
Middle Island, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high45°
Average low35°
Average precipitation0.23 in
Chance of precipitation40%
Record high61° (1978)
Record low17° (1968)
Thu, 1045° / 36°0.15
45 °
Middle Island, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high45°
Average low36°
Average precipitation0.15 in
Chance of precipitation42%
Record high59° (2023)
Record low12° (1968)
Fri, 1144° / 35°0.27
44 °
Middle Island, Friday, 11 December
Climate normal for this date — 60-year average.
Average high44°
Average low35°
Average precipitation0.27 in
Chance of precipitation43%
Record high61° (2021)
Record low16° (1977)
Sat, 1244° / 34°0.16
44 °
Middle Island, Saturday, 12 December
Climate normal for this date — 60-year average.
Average high44°
Average low34°
Average precipitation0.16 in
Chance of precipitation43%
Record high61° (2021)
Record low11° (1988)
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.