Monthly outlook for Shirley, NY: average high 57.5°, average low 45.7°. That is 0.6° below the climate normal for October. 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 20 October (66.3°), the coolest 19 October (36.7°).
57.5°/45.7°
Average high / low
−0.6°
Below normal
2 / 5
Wet days / normal
1.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
19 October – 28 October
58.6°
59.4°
-0.5°
29 October – 7 November
55.8°
56.5°
-0.4°
8 November – 17 November
at normal
52.6°
—
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 (5 mi).
Tue, 2066° / 42°0
66 °
Shirley, Tuesday, 20 October
Clear. High 66°, low 42°.
Pressure30.24 inHg
Wind10.6 mph N
Humidity59%
Visibility6.2 mi
Dew point46°
Wed, 2156° / 39°0
56 °
Shirley, Wednesday, 21 October
Overcast. High 56°, low 39°.
Pressure30.21 inHg
Wind12.3 mph NE
Humidity62%
Visibility6.2 mi
Dew point41°
Thu, 2261° / 46°0
61 °
Shirley, Thursday, 22 October
Clear. High 61°, low 46°.
Pressure29.91 inHg
Wind8.3 mph NW
Humidity52%
Visibility6.2 mi
Dew point40°
Fri, 2352° / 42°0
52 °
Shirley, Friday, 23 October
Clear. High 52°, low 42°.
Pressure30.18 inHg
Wind13.4 mph N
Humidity51%
Visibility6.2 mi
Dew point31°
Sat, 2454° / 41°0
54 °
Shirley, Saturday, 24 October
Clear. High 54°, low 41°.
Pressure30.47 inHg
Wind7 mph N
Humidity56%
Visibility—
Dew point33°
Sun, 2558° / 42°0
58 °
Shirley, Sunday, 25 October
Clear. High 58°, low 42°.
Pressure30.53 inHg
Wind12.1 mph SW
Humidity53%
Visibility—
Dew point35°
Mon, 2660° / 53°0
60 °
Shirley, Monday, 26 October
Clear. High 60°, low 53°.
Pressure30.33 inHg
Wind16.8 mph SW
Humidity59%
Visibility—
Dew point43°
Tue, 2762° / 55°0
62 °
Shirley, Tuesday, 27 October
Clear. High 62°, low 55°.
Pressure30.21 inHg
Wind9.5 mph W
Humidity57%
Visibility—
Dew point44°
Wed, 2854° / 44°0.27
54 °
Shirley, Wednesday, 28 October
Light rain. High 54°, low 44°.
Pressure30.09 inHg
Wind17.6 mph N
Humidity86%
Visibility—
Dew point44°
Thu, 2948° / 41°0.02
48 °
Shirley, Thursday, 29 October
Light rain. High 48°, low 41°.
Pressure30.12 inHg
Wind16.5 mph N
Humidity52%
Visibility—
Dew point27°
Fri, 3054° / 44°0
54 °
Shirley, Friday, 30 October
Clear. High 54°, low 44°.
Pressure30.24 inHg
Wind13.2 mph NW
Humidity53%
Visibility—
Dew point33°
Sat, 3156° / 49°0
56 °
Shirley, Saturday, 31 October
Partly cloudy. High 56°, low 49°.
Pressure30.39 inHg
Wind13.4 mph SW
Humidity56%
Visibility—
Dew point38°
Sun, 0159° / 54°0
59 °
Shirley, Sunday, 1 November
Overcast. High 59°, low 54°.
Pressure30.33 inHg
Wind15.3 mph SW
Humidity60%
Visibility—
Dew point44°
Mon, 0261° / 54°0
61 °
Shirley, Monday, 2 November
Overcast. High 61°, low 54°.
Pressure30.24 inHg
Wind13.3 mph NE
Humidity68%
Visibility—
Dew point48°
Tue, 0357° / 48°1.04
57 °
Shirley, Tuesday, 3 November
Rain. High 57°, low 48°.
Pressure29.91 inHg
Wind34.2 mph N
Humidity90%
Visibility—
Dew point48°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 0456° / 47°0.05
56 °
Shirley, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high56°
Average low47°
Average precipitation0.05 in
Chance of precipitation27%
Record high68° (1975)
Record low37° (2013)
Thu, 0556° / 48°0.15
56 °
Shirley, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high56°
Average low48°
Average precipitation0.15 in
Chance of precipitation30%
Record high69° (2022)
Record low38° (1965)
Fri, 0655° / 47°0.11
55 °
Shirley, Friday, 6 November
Climate normal for this date — 60-year average.
Average high55°
Average low47°
Average precipitation0.11 in
Chance of precipitation32%
Record high70° (2024)
Record low36° (1962)
Sat, 0755° / 46°0.1
55 °
Shirley, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high55°
Average low46°
Average precipitation0.1 in
Chance of precipitation25%
Record high75° (2022)
Record low35° (1962)
Sun, 0854° / 45°0.17
54 °
Shirley, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high54°
Average low45°
Average precipitation0.17 in
Chance of precipitation30%
Record high72° (2020)
Record low32° (2019)
Mon, 0954° / 45°0.11
54 °
Shirley, Monday, 9 November
Climate normal for this date — 60-year average.
Average high54°
Average low45°
Average precipitation0.11 in
Chance of precipitation23%
Record high68° (2020)
Record low29° (2019)
Tue, 1055° / 45°0.17
55 °
Shirley, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high55°
Average low45°
Average precipitation0.17 in
Chance of precipitation42%
Record high65° (1999)
Record low28° (2017)
Wed, 1154° / 45°0.15
54 °
Shirley, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high54°
Average low45°
Average precipitation0.15 in
Chance of precipitation37%
Record high68° (2024)
Record low26° (2017)
Thu, 1252° / 44°0.16
52 °
Shirley, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high52°
Average low44°
Average precipitation0.16 in
Chance of precipitation38%
Record high70° (2022)
Record low30° (2019)
Fri, 1351° / 42°0.23
51 °
Shirley, Friday, 13 November
Climate normal for this date — 60-year average.
Average high51°
Average low42°
Average precipitation0.23 in
Chance of precipitation40%
Record high65° (1964)
Record low24° (2019)
Sat, 1451° / 42°0.11
51 °
Shirley, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high51°
Average low42°
Average precipitation0.11 in
Chance of precipitation22%
Record high63° (1989)
Record low27° (2019)
Sun, 1552° / 42°0.12
52 °
Shirley, 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 °
Shirley, 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 °
Shirley, 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)
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 Shirley, 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 Shirley, 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.