Monthly outlook for Middle Island, NY: average high 58.8°, average low 47.9°. That is 2.1° above the climate normal for October. Precipitation is expected on 4 days (about 1.4 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 4 November (68.1°), the coolest 31 October (40°).
58.8°/47.9°
Average high / low
+2.1°
Above normal
4 / 5
Wet days / normal
1.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
30 October – 8 November
61.5°
56.2°
+2.9°
9 November – 18 November
54.3°
52.2°
+1.1°
19 November – 28 November
at normal
49.6°
—
October records over 66 years
83.8°2 October 2019All-time high
33.8°27 October 1976All-time low
Climate normals and records are computed from the nearest reference point — Brookhaven (4 mi).
Sat, 3155° / 40°0
55 °
Middle Island, Saturday, 31 October
Clear. High 55°, low 40°.
Pressure30.45 inHg
Wind8.2 mph NW
Humidity49%
Visibility6.2 mi
Dew point33°
Sun, 0159° / 44°0
59 °
Middle Island, Sunday, 1 November
Partly cloudy. High 59°, low 44°.
Pressure30.53 inHg
Wind4.1 mph W
Humidity49%
Visibility6.2 mi
Dew point35°
Mon, 0266° / 49°0
66 °
Middle Island, Monday, 2 November
Mostly clear. High 66°, low 49°.
Pressure30.36 inHg
Wind8.5 mph SW
Humidity43%
Visibility6.2 mi
Dew point40°
Tue, 0368° / 52°0
68 °
Middle Island, Tuesday, 3 November
Partly cloudy. High 68°, low 52°.
Pressure30.30 inHg
Wind7.4 mph S
Humidity52%
Visibility—
Dew point43°
Wed, 0468° / 54°0
68 °
Middle Island, Wednesday, 4 November
Mostly clear. High 68°, low 54°.
Pressure30.18 inHg
Wind6.2 mph S
Humidity68%
Visibility—
Dew point53°
Thu, 0566° / 59°0.34
66 °
Middle Island, Thursday, 5 November
Rain. High 66°, low 59°.
Pressure29.94 inHg
Wind17.6 mph S
Humidity90%
Visibility—
Dew point60°
Fri, 0665° / 52°0.87
65 °
Middle Island, Friday, 6 November
Heavy rain. High 65°, low 52°.
Pressure29.47 inHg
Wind22.6 mph W
Humidity86%
Visibility—
Dew point59°
Sat, 0750° / 45°0.07
50 °
Middle Island, Saturday, 7 November
Light rain. High 50°, low 45°.
Pressure29.97 inHg
Wind24.3 mph NW
Humidity65%
Visibility—
Dew point35°
Sun, 0850° / 42°0
50 °
Middle Island, Sunday, 8 November
Partly cloudy. High 50°, low 42°.
Pressure30.18 inHg
Wind13.5 mph N
Humidity44%
Visibility—
Dew point24°
Mon, 0949° / 44°0.04
49 °
Middle Island, Monday, 9 November
Light rain. High 49°, low 44°.
Pressure29.91 inHg
Wind11.7 mph NW
Humidity73%
Visibility—
Dew point37°
Tue, 1049° / 45°0.02
49 °
Middle Island, Tuesday, 10 November
Light rain. High 49°, low 45°.
Pressure29.88 inHg
Wind18.1 mph N
Humidity66%
Visibility—
Dew point37°
Wed, 1152° / 42°0
52 °
Middle Island, Wednesday, 11 November
Clear. High 52°, low 42°.
Pressure29.91 inHg
Wind14.6 mph NW
Humidity59%
Visibility—
Dew point32°
Thu, 1255° / 46°0.03
55 °
Middle Island, Thursday, 12 November
Light rain. High 55°, low 46°.
Pressure29.80 inHg
Wind11.9 mph SW
Humidity43%
Visibility—
Dew point27°
Fri, 1363° / 53°0
63 °
Middle Island, Friday, 13 November
Clear. High 63°, low 53°.
Pressure29.94 inHg
Wind11.5 mph NW
Humidity76%
Visibility—
Dew point50°
Sat, 1458° / 53°0
58 °
Middle Island, Saturday, 14 November
Clear. High 58°, low 53°.
Pressure30.18 inHg
Wind11.8 mph NW
Humidity66%
Visibility—
Dew point46°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 1552° / 42°0.12
52 °
Middle Island, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high52°
Average low42°
Average precipitation0.12 in
Chance of precipitation42%
Record high69° (1993)
Record low26° (1967)
Mon, 1651° / 42°0.15
51 °
Middle Island, Monday, 16 November
Climate normal for this date — 60-year average.
Average high51°
Average low42°
Average precipitation0.15 in
Chance of precipitation38%
Record high65° (2006)
Record low25° (1967)
Tue, 1751° / 42°0.15
51 °
Middle Island, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high51°
Average low42°
Average precipitation0.15 in
Chance of precipitation33%
Record high65° (2006)
Record low31° (2019)
Wed, 1851° / 42°0.07
51 °
Middle Island, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high51°
Average low42°
Average precipitation0.07 in
Chance of precipitation25%
Record high63° (2024)
Record low30° (2014)
Thu, 1951° / 42°0.07
51 °
Middle Island, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high51°
Average low42°
Average precipitation0.07 in
Chance of precipitation25%
Record high62° (2021)
Record low26° (2014)
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)
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.