As of 05:40 EDT

Weather in Brookhaven, NY

50°

Brookhaven, Friday, 9 October, 05:40

Clear. Feels like 49°. High 70°, low 49°.

Pressure30.06 inHg

Wind0 mph N

Humidity84%

Visibility6.2 mi

Dew point46°

See detailed hourly forecast

Monthly outlook for Brookhaven, NY: average high 62.3°, average low 52.9°. That is 0.5° above the climate normal for October. Precipitation is expected on 5 days (about 2.0 inches), against a normal of 4 days and 2.2 inches. The warmest day looks like 9 October (70.2°), the coolest 9 October (48.9°).

62.3°/52.9°

Average high / low

+0.5°

Above normal

5 / 4

Wet days / normal

2.0 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
9 October – 18 October	64.4°	62.4°	+1.1°
19 October – 28 October	58.8°	59.4°	-0.4°
29 October – 7 November	at normal	56.5°	—

October records over 66 years

83.8°2 October 2019All-time high

33.8°27 October 1976All-time low

Sat, 1068° / 50°

68 °

Brookhaven, Saturday, 10 October

Overcast. High 68°, low 50°.

Pressure30.47 inHg

Wind4.9 mph N

Humidity45%

Visibility6.2 mi

Dew point43°

Sun, 1162° / 53°

0.41

62 °

Brookhaven, Sunday, 11 October

Rain. High 62°, low 53°.

Pressure30.36 inHg

Wind8 mph SE

Humidity81%

Visibility1.6 mi

Dew point55°

Mon, 1267° / 61°

0.96

67 °

Brookhaven, Monday, 12 October

Heavy rain. High 67°, low 61°.

Pressure29.62 inHg

Wind12.1 mph N

Humidity88%

Visibility5.1 mi

Dew point59°

Tue, 1370° / 56°

70 °

Brookhaven, Tuesday, 13 October

Clear. High 70°, low 56°.

Pressure29.83 inHg

Wind7.1 mph SW

Humidity75%

Visibility—

Dew point57°

Wed, 1464° / 56°

0.17

64 °

Brookhaven, Wednesday, 14 October

Rain. High 64°, low 56°.

Pressure29.91 inHg

Wind8.9 mph N

Humidity77%

Visibility—

Dew point54°

Thu, 1558° / 51°

58 °

Brookhaven, Thursday, 15 October

Clear. High 58°, low 51°.

Pressure30.27 inHg

Wind8.7 mph SE

Humidity47%

Visibility—

Dew point35°

Fri, 1665° / 57°

65 °

Brookhaven, Friday, 16 October

Overcast. High 65°, low 57°.

Pressure30.18 inHg

Wind17.4 mph S

Humidity73%

Visibility—

Dew point53°

Sat, 1766° / 58°

0.04

66 °

Brookhaven, Saturday, 17 October

Light rain. High 66°, low 58°.

Pressure30.03 inHg

Wind17.3 mph SW

Humidity68%

Visibility—

Dew point55°

Sun, 1854° / 50°

0.39

54 °

Brookhaven, Sunday, 18 October

Rain. High 54°, low 50°.

Pressure30.21 inHg

Wind13.1 mph NE

Humidity88%

Visibility—

Dew point48°

Mon, 1956° / 49°

56 °

Brookhaven, Monday, 19 October

Overcast. High 56°, low 49°.

Pressure30.42 inHg

Wind13.2 mph NE

Humidity63%

Visibility—

Dew point40°

Tue, 2058° / 49°

58 °

Brookhaven, Tuesday, 20 October

Overcast. High 58°, low 49°.

Pressure30.45 inHg

Wind16.2 mph NE

Humidity63%

Visibility—

Dew point40°

Wed, 2160° / 51°

60 °

Brookhaven, Wednesday, 21 October

Overcast. High 60°, low 51°.

Pressure30.50 inHg

Wind17.7 mph NE

Humidity70%

Visibility—

Dew point46°

Thu, 2259° / 51°

59 °

Brookhaven, Thursday, 22 October

Overcast. High 59°, low 51°.

Pressure30.36 inHg

Wind12.4 mph NE

Humidity70%

Visibility—

Dew point45°

Fri, 2360° / 53°

60 °

Brookhaven, Friday, 23 October

Overcast. High 60°, low 53°.

Pressure30.24 inHg

Wind13.2 mph NE

Humidity67%

Visibility—

Dew point45°

Sat, 2461° / 52°

61 °

Brookhaven, Saturday, 24 October

Clear. High 61°, low 52°.

Pressure30.18 inHg

Wind11.9 mph NE

Humidity70%

Visibility—

Dew point47°

From day 17 onward the outlook is built from 60-year climate statistics

Sun, 2560° / 51°

0.16

60 °

Brookhaven, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high60°

Average low51°

Average precipitation0.16 in

Chance of precipitation35%

Record high71° (2022)

Record low42° (1960)

Mon, 2658° / 50°

0.16

58 °

Brookhaven, Monday, 26 October

Climate normal for this date — 60-year average.

Average high58°

Average low50°

Average precipitation0.16 in

Chance of precipitation37%

Record high71° (2022)

Record low38° (1962)

Tue, 2758° / 50°

0.16

58 °

Brookhaven, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high58°

Average low50°

Average precipitation0.16 in

Chance of precipitation27%

Record high72° (2023)

Record low34° (1976)

Wed, 2858° / 49°

0.17

58 °

Brookhaven, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high58°

Average low49°

Average precipitation0.17 in

Chance of precipitation32%

Record high77° (2023)

Record low35° (1976)

Thu, 2957° / 48°

0.19

57 °

Brookhaven, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high57°

Average low48°

Average precipitation0.19 in

Chance of precipitation25%

Record high71° (1984)

Record low35° (1965)

Fri, 3056° / 47°

0.11

56 °

Brookhaven, Friday, 30 October

Climate normal for this date — 60-year average.

Average high56°

Average low47°

Average precipitation0.11 in

Chance of precipitation27%

Record high69° (2023)

Record low37° (1966)

Sat, 3157° / 48°

0.06

57 °

Brookhaven, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high57°

Average low48°

Average precipitation0.06 in

Chance of precipitation23%

Record high72° (2024)

Record low35° (2020)

Sun, 0158° / 49°

0.14

58 °

Brookhaven, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high58°

Average low49°

Average precipitation0.14 in

Chance of precipitation30%

Record high75° (2024)

Record low38° (1976)

Mon, 0258° / 49°

0.08

58 °

Brookhaven, Monday, 2 November

Climate normal for this date — 60-year average.

Average high58°

Average low49°

Average precipitation0.08 in

Chance of precipitation32%

Record high69° (1971)

Record low33° (1965)

Tue, 0357° / 48°

0.12

57 °

Brookhaven, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high57°

Average low48°

Average precipitation0.12 in

Chance of precipitation30%

Record high69° (2017)

Record low37° (1996)

Wed, 0456° / 47°

0.05

56 °

Brookhaven, 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 °

Brookhaven, 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 °

Brookhaven, 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 °

Brookhaven, 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)

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 Brookhaven, 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 Brookhaven, 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.