Monthly outlook for Farmingville, NY: average high 81.2°, average low 70.6°. That is 2° above the climate normal for August. Precipitation is expected on 5 days (about 0.6 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 9 August (89.1°), the coolest 15 August (63.3°).
81.2°/70.6°
Average high / low
+2°
Above normal
5 / 5
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
80.9°
78.3°
+1.5°
19 August – 28 August
81.7°
76.8°
+2.7°
29 August – 7 September
at normal
75.5°
—
August records over 66 years
92.3°2 August 1975All-time high
52.2°29 August 1982All-time low
Climate normals and records are computed from the nearest reference point — Brookhaven (5 mi).
Mon, 1086° / 71°0
86 °
Farmingville, Monday, 10 August
Partly cloudy. High 86°, low 71°.
Pressure30.00 inHg
Wind5.3 mph S
Humidity43%
Visibility6.2 mi
Dew point57°
Tue, 1187° / 73°0.05
87 °
Farmingville, Tuesday, 11 August
Light rain. High 87°, low 73°.
Pressure29.80 inHg
Wind7.2 mph NW
Humidity57%
Visibility6.2 mi
Dew point65°
Wed, 1278° / 72°0
78 °
Farmingville, Wednesday, 12 August
Overcast. High 78°, low 72°.
Pressure29.77 inHg
Wind6.9 mph SE
Humidity55%
Visibility6.2 mi
Dew point61°
Thu, 1382° / 70°0.13
82 °
Farmingville, Thursday, 13 August
Light rain. High 82°, low 70°.
Pressure29.71 inHg
Wind14.9 mph NW
Humidity59%
Visibility—
Dew point63°
Fri, 1475° / 65°0
75 °
Farmingville, Friday, 14 August
Clear. High 75°, low 65°.
Pressure29.97 inHg
Wind16.7 mph NW
Humidity44%
Visibility—
Dew point46°
Sat, 1578° / 63°0
78 °
Farmingville, Saturday, 15 August
Clear. High 78°, low 63°.
Pressure30.06 inHg
Wind15.7 mph NW
Humidity43%
Visibility—
Dew point45°
Sun, 1679° / 66°0
79 °
Farmingville, Sunday, 16 August
Overcast. High 79°, low 66°.
Pressure30.12 inHg
Wind9 mph NW
Humidity37%
Visibility—
Dew point46°
Mon, 1777° / 69°0
77 °
Farmingville, Monday, 17 August
Light rain. High 77°, low 69°.
Pressure30.03 inHg
Wind10.9 mph SW
Humidity50%
Visibility—
Dew point55°
Tue, 1878° / 68°0.03
78 °
Farmingville, Tuesday, 18 August
Light rain. High 78°, low 68°.
Pressure30.03 inHg
Wind9.3 mph S
Humidity51%
Visibility—
Dew point56°
Wed, 1979° / 71°0.02
79 °
Farmingville, Wednesday, 19 August
Light rain. High 79°, low 71°.
Pressure30.12 inHg
Wind9.6 mph SE
Humidity58%
Visibility—
Dew point61°
Thu, 2080° / 71°0
80 °
Farmingville, Thursday, 20 August
Mostly clear. High 80°, low 71°.
Pressure30.09 inHg
Wind10.2 mph S
Humidity63%
Visibility—
Dew point64°
Fri, 2182° / 74°0.18
82 °
Farmingville, Friday, 21 August
Rain. High 82°, low 74°.
Pressure29.91 inHg
Wind15.3 mph S
Humidity59%
Visibility—
Dew point64°
Sat, 2285° / 74°0.07
85 °
Farmingville, Saturday, 22 August
Light rain. High 85°, low 74°.
Pressure29.88 inHg
Wind13.6 mph SW
Humidity68%
Visibility—
Dew point70°
Sun, 2383° / 74°0
83 °
Farmingville, Sunday, 23 August
Clear. High 83°, low 74°.
Pressure29.94 inHg
Wind7.2 mph SW
Humidity47%
Visibility—
Dew point58°
Mon, 2482° / 77°0.08
82 °
Farmingville, Monday, 24 August
Light rain. High 82°, low 77°.
Pressure30.00 inHg
Wind13 mph E
Humidity67%
Visibility—
Dew point69°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2577° / 67°0.09
77 °
Farmingville, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high77°
Average low67°
Average precipitation0.09 in
Chance of precipitation28%
Record high89° (2020)
Record low58° (1963)
Wed, 2677° / 67°0.09
77 °
Farmingville, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high77°
Average low67°
Average precipitation0.09 in
Chance of precipitation25%
Record high87° (2021)
Record low60° (1963)
Thu, 2778° / 68°0.12
78 °
Farmingville, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high78°
Average low68°
Average precipitation0.12 in
Chance of precipitation28%
Record high90° (2020)
Record low59° (1969)
Fri, 2877° / 68°0.18
77 °
Farmingville, Friday, 28 August
Climate normal for this date — 60-year average.
Average high77°
Average low68°
Average precipitation0.18 in
Chance of precipitation35%
Record high87° (2024)
Record low57° (1986)
Sat, 2976° / 68°0.15
76 °
Farmingville, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high76°
Average low68°
Average precipitation0.15 in
Chance of precipitation30%
Record high86° (2018)
Record low52° (1982)
Sun, 3077° / 67°0.07
77 °
Farmingville, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high77°
Average low67°
Average precipitation0.07 in
Chance of precipitation27%
Record high88° (2018)
Record low55° (1965)
Mon, 3177° / 67°0.04
77 °
Farmingville, Monday, 31 August
Climate normal for this date — 60-year average.
Average high77°
Average low67°
Average precipitation0.04 in
Chance of precipitation18%
Record high89° (2010)
Record low56° (1976)
Tue, 0175° / 67°0.06
75 °
Farmingville, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high75°
Average low67°
Average precipitation0.06 in
Chance of precipitation25%
Record high87° (2010)
Record low55° (2017)
Wed, 0275° / 66°0.2
75 °
Farmingville, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high75°
Average low66°
Average precipitation0.2 in
Chance of precipitation28%
Record high87° (1966)
Record low56° (2017)
Thu, 0375° / 66°0.11
75 °
Farmingville, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high75°
Average low66°
Average precipitation0.11 in
Chance of precipitation30%
Record high84° (1973)
Record low54° (2025)
Fri, 0476° / 66°0.13
76 °
Farmingville, Friday, 4 September
Climate normal for this date — 60-year average.
Average high76°
Average low66°
Average precipitation0.13 in
Chance of precipitation22%
Record high87° (2018)
Record low56° (1997)
Sat, 0575° / 66°0.05
75 °
Farmingville, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high75°
Average low66°
Average precipitation0.05 in
Chance of precipitation18%
Record high90° (2023)
Record low56° (2000)
Sun, 0674° / 66°0.14
74 °
Farmingville, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high74°
Average low66°
Average precipitation0.14 in
Chance of precipitation33%
Record high90° (2023)
Record low56° (1962)
Mon, 0775° / 65°0.1
75 °
Farmingville, Monday, 7 September
Climate normal for this date — 60-year average.
Average high75°
Average low65°
Average precipitation0.1 in
Chance of precipitation32%
Record high90° (2023)
Record low56° (1984)
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 Farmingville, 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 Farmingville, 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.