Monthly outlook for Seaford, NY: average high 85°, average low 73.4°. That is 3.8° above the climate normal for August. Precipitation is expected on 5 days (about 0.7 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 22 August (91.5°), the coolest 15 August (64.9°).
85°/73.4°
Average high / low
+3.8°
Above normal
5 / 5
Wet days / normal
0.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
83.8°
78.7°
+2.8°
19 August – 28 August
86.9°
77.3°
+5.3°
29 August – 7 September
at normal
76.1°
—
August records over 66 years
92.7°2 August 1975All-time high
52.7°29 August 1982All-time low
Mon, 1086° / 73°0
86 °
Seaford, Monday, 10 August
Light rain. High 86°, low 73°.
Pressure30.00 inHg
Wind8.7 mph S
Humidity40%
Visibility6.2 mi
Dew point58°
Tue, 1190° / 77°0.02
90 °
Seaford, Tuesday, 11 August
Light rain. High 90°, low 77°.
Pressure29.83 inHg
Wind10.2 mph NW
Humidity51%
Visibility6.2 mi
Dew point64°
Wed, 1284° / 77°0
84 °
Seaford, Wednesday, 12 August
Overcast. High 84°, low 77°.
Pressure29.74 inHg
Wind10.4 mph SE
Humidity58%
Visibility6.2 mi
Dew point64°
Thu, 1385° / 73°0.13
85 °
Seaford, Thursday, 13 August
Light rain. High 85°, low 73°.
Pressure29.71 inHg
Wind17.9 mph NW
Humidity53%
Visibility—
Dew point62°
Fri, 1479° / 66°0
79 °
Seaford, Friday, 14 August
Clear. High 79°, low 66°.
Pressure29.97 inHg
Wind16.6 mph NW
Humidity38%
Visibility—
Dew point44°
Sat, 1581° / 65°0
81 °
Seaford, Saturday, 15 August
Clear. High 81°, low 65°.
Pressure30.09 inHg
Wind16.7 mph NW
Humidity40%
Visibility—
Dew point44°
Sun, 1680° / 69°0
80 °
Seaford, Sunday, 16 August
Partly cloudy. High 80°, low 69°.
Pressure30.12 inHg
Wind10.2 mph N
Humidity33%
Visibility—
Dew point44°
Mon, 1781° / 73°0.08
81 °
Seaford, Monday, 17 August
Light rain. High 81°, low 73°.
Pressure30.03 inHg
Wind13 mph SW
Humidity41%
Visibility—
Dew point53°
Tue, 1882° / 71°0
82 °
Seaford, Tuesday, 18 August
Clear. High 82°, low 71°.
Pressure30.03 inHg
Wind12.5 mph S
Humidity48%
Visibility—
Dew point56°
Wed, 1983° / 75°0
83 °
Seaford, Wednesday, 19 August
Partly cloudy. High 83°, low 75°.
Pressure30.12 inHg
Wind11.2 mph SE
Humidity50%
Visibility—
Dew point60°
Thu, 2084° / 74°0
84 °
Seaford, Thursday, 20 August
Clear. High 84°, low 74°.
Pressure30.06 inHg
Wind10.7 mph S
Humidity56%
Visibility—
Dew point64°
Fri, 2184° / 75°0.1
84 °
Seaford, Friday, 21 August
Light rain. High 84°, low 75°.
Pressure29.91 inHg
Wind20.2 mph S
Humidity59%
Visibility—
Dew point65°
Sat, 2292° / 76°0.07
92 °
Seaford, Saturday, 22 August
Light rain. High 92°, low 76°.
Pressure29.88 inHg
Wind9.8 mph SW
Humidity56%
Visibility—
Dew point67°
Sun, 2390° / 79°0
90 °
Seaford, Sunday, 23 August
Clear. High 90°, low 79°.
Pressure29.94 inHg
Wind9.6 mph S
Humidity42%
Visibility—
Dew point59°
Mon, 2489° / 79°0.28
89 °
Seaford, Monday, 24 August
Rain. High 89°, low 79°.
Pressure29.97 inHg
Wind10.1 mph SE
Humidity61%
Visibility—
Dew point69°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2578° / 67°0.08
78 °
Seaford, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high78°
Average low67°
Average precipitation0.08 in
Chance of precipitation23%
Record high91° (2020)
Record low59° (1963)
Wed, 2678° / 68°0.07
78 °
Seaford, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high78°
Average low68°
Average precipitation0.07 in
Chance of precipitation22%
Record high86° (2016)
Record low61° (1963)
Thu, 2778° / 68°0.13
78 °
Seaford, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high78°
Average low68°
Average precipitation0.13 in
Chance of precipitation32%
Record high90° (2020)
Record low59° (1969)
Fri, 2878° / 69°0.19
78 °
Seaford, Friday, 28 August
Climate normal for this date — 60-year average.
Average high78°
Average low69°
Average precipitation0.19 in
Chance of precipitation38%
Record high89° (1973)
Record low58° (1986)
Sat, 2977° / 68°0.14
77 °
Seaford, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high77°
Average low68°
Average precipitation0.14 in
Chance of precipitation32%
Record high86° (2018)
Record low53° (1982)
Sun, 3077° / 68°0.07
77 °
Seaford, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high77°
Average low68°
Average precipitation0.07 in
Chance of precipitation27%
Record high89° (1973)
Record low55° (1965)
Mon, 3177° / 67°0.05
77 °
Seaford, Monday, 31 August
Climate normal for this date — 60-year average.
Average high77°
Average low67°
Average precipitation0.05 in
Chance of precipitation20%
Record high89° (2010)
Record low56° (1976)
Tue, 0176° / 67°0.07
76 °
Seaford, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high76°
Average low67°
Average precipitation0.07 in
Chance of precipitation30%
Record high87° (1973)
Record low55° (2017)
Wed, 0275° / 66°0.16
75 °
Seaford, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high75°
Average low66°
Average precipitation0.16 in
Chance of precipitation30%
Record high87° (1966)
Record low54° (2017)
Thu, 0376° / 67°0.12
76 °
Seaford, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high76°
Average low67°
Average precipitation0.12 in
Chance of precipitation30%
Record high85° (2023)
Record low56° (1967)
Fri, 0476° / 67°0.12
76 °
Seaford, Friday, 4 September
Climate normal for this date — 60-year average.
Average high76°
Average low67°
Average precipitation0.12 in
Chance of precipitation25%
Record high87° (2018)
Record low56° (1997)
Sat, 0575° / 66°0.05
75 °
Seaford, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high75°
Average low66°
Average precipitation0.05 in
Chance of precipitation18%
Record high89° (2023)
Record low57° (2000)
Sun, 0675° / 66°0.17
75 °
Seaford, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high75°
Average low66°
Average precipitation0.17 in
Chance of precipitation37%
Record high89° (2023)
Record low56° (1984)
Mon, 0775° / 66°0.09
75 °
Seaford, Monday, 7 September
Climate normal for this date — 60-year average.
Average high75°
Average low66°
Average precipitation0.09 in
Chance of precipitation33%
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 Seaford, 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 Seaford, 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.