Monthly outlook for East Moriches, NY: average high 79.3°, average low 70.4°. That is 1° above the climate normal for August. Precipitation is expected on 5 days (about 1.1 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 9 August (87.7°), the coolest 17 August (65.7°).
79.3°/70.4°
Average high / low
+1°
Above normal
5 / 5
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
80°
78°
+1.1°
19 August – 28 August
78°
76.5°
+0.8°
29 August – 7 September
at normal
75.1°
—
August records over 66 years
92.7°2 August 1975All-time high
52.5°29 August 1982All-time low
Climate normals and records are computed from the nearest reference point — Quogue (8 mi).
Mon, 1086° / 71°0.18
86 °
East Moriches, Monday, 10 August
Rain. High 86°, low 71°.
Pressure29.97 inHg
Wind6.8 mph S
Humidity54%
Visibility6.2 mi
Dew point61°
Tue, 1184° / 72°0.03
84 °
East Moriches, Tuesday, 11 August
Light rain. High 84°, low 72°.
Pressure29.85 inHg
Wind3.7 mph NW
Humidity65%
Visibility6.2 mi
Dew point68°
Wed, 1279° / 71°0.02
79 °
East Moriches, Wednesday, 12 August
Light rain. High 79°, low 71°.
Pressure29.74 inHg
Wind10.4 mph NE
Humidity81%
Visibility6.2 mi
Dew point67°
Thu, 1383° / 69°0
83 °
East Moriches, Thursday, 13 August
Clear. High 83°, low 69°.
Pressure29.83 inHg
Wind4.6 mph W
Humidity55%
Visibility6.2 mi
Dew point61°
Fri, 1472° / 68°0
72 °
East Moriches, Friday, 14 August
Light rain. High 72°, low 68°.
Pressure30.09 inHg
Wind8.7 mph W
Humidity51%
Visibility—
Dew point53°
Sat, 1574° / 69°0
74 °
East Moriches, Saturday, 15 August
Clear. High 74°, low 69°.
Pressure30.18 inHg
Wind11.3 mph S
Humidity59%
Visibility—
Dew point56°
Sun, 1678° / 72°0.37
78 °
East Moriches, Sunday, 16 August
Light rain. High 78°, low 72°.
Pressure30.00 inHg
Wind32.7 mph S
Humidity78%
Visibility—
Dew point67°
Mon, 1779° / 66°0
79 °
East Moriches, Monday, 17 August
Light rain. High 79°, low 66°.
Pressure29.85 inHg
Wind19.8 mph NW
Humidity61%
Visibility—
Dew point57°
Tue, 1878° / 69°0
78 °
East Moriches, Tuesday, 18 August
Overcast. High 78°, low 69°.
Pressure30.12 inHg
Wind19.8 mph SW
Humidity54%
Visibility—
Dew point56°
Wed, 1981° / 74°0.31
81 °
East Moriches, Wednesday, 19 August
Rain. High 81°, low 74°.
Pressure29.88 inHg
Wind24.7 mph SW
Humidity89%
Visibility—
Dew point72°
Thu, 2079° / 69°0
79 °
East Moriches, Thursday, 20 August
Mostly clear. High 79°, low 69°.
Pressure29.97 inHg
Wind12.5 mph S
Humidity52%
Visibility—
Dew point56°
Fri, 2181° / 72°0.04
81 °
East Moriches, Friday, 21 August
Light rain. High 81°, low 72°.
Pressure29.80 inHg
Wind13.9 mph S
Humidity76%
Visibility—
Dew point68°
Sat, 2274° / 71°0.07
74 °
East Moriches, Saturday, 22 August
Light rain. High 74°, low 71°.
Pressure29.91 inHg
Wind9.5 mph E
Humidity82%
Visibility—
Dew point66°
Sun, 2374° / 70°0
74 °
East Moriches, Sunday, 23 August
Clear. High 74°, low 70°.
Pressure30.09 inHg
Wind10.8 mph SE
Humidity71%
Visibility—
Dew point63°
Mon, 2479° / 72°0.03
79 °
East Moriches, Monday, 24 August
Light rain. High 79°, low 72°.
Pressure30.00 inHg
Wind13.4 mph S
Humidity80%
Visibility—
Dew point70°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2577° / 67°0.1
77 °
East Moriches, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high77°
Average low67°
Average precipitation0.1 in
Chance of precipitation23%
Record high88° (2020)
Record low58° (1963)
Wed, 2677° / 68°0.07
77 °
East Moriches, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high77°
Average low68°
Average precipitation0.07 in
Chance of precipitation23%
Record high86° (2021)
Record low60° (1981)
Thu, 2777° / 69°0.09
77 °
East Moriches, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high77°
Average low69°
Average precipitation0.09 in
Chance of precipitation23%
Record high87° (2020)
Record low59° (1969)
Fri, 2876° / 68°0.17
76 °
East Moriches, Friday, 28 August
Climate normal for this date — 60-year average.
Average high76°
Average low68°
Average precipitation0.17 in
Chance of precipitation27%
Record high89° (2024)
Record low57° (1986)
Sat, 2976° / 68°0.16
76 °
East Moriches, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high76°
Average low68°
Average precipitation0.16 in
Chance of precipitation30%
Record high86° (2010)
Record low53° (1982)
Sun, 3076° / 67°0.11
76 °
East Moriches, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high76°
Average low67°
Average precipitation0.11 in
Chance of precipitation27%
Record high89° (2018)
Record low55° (1965)
Mon, 3176° / 67°0.05
76 °
East Moriches, Monday, 31 August
Climate normal for this date — 60-year average.
Average high76°
Average low67°
Average precipitation0.05 in
Chance of precipitation17%
Record high88° (2010)
Record low56° (1976)
Tue, 0175° / 67°0.07
75 °
East Moriches, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high75°
Average low67°
Average precipitation0.07 in
Chance of precipitation28%
Record high87° (2010)
Record low56° (2017)
Wed, 0274° / 66°0.21
74 °
East Moriches, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high74°
Average low66°
Average precipitation0.21 in
Chance of precipitation25%
Record high87° (1966)
Record low57° (2023)
Thu, 0375° / 66°0.1
75 °
East Moriches, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high75°
Average low66°
Average precipitation0.1 in
Chance of precipitation27%
Record high87° (2023)
Record low56° (2025)
Fri, 0475° / 66°0.14
75 °
East Moriches, Friday, 4 September
Climate normal for this date — 60-year average.
Average high75°
Average low66°
Average precipitation0.14 in
Chance of precipitation25%
Record high89° (2023)
Record low56° (1997)
Sat, 0574° / 66°0.04
74 °
East Moriches, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high74°
Average low66°
Average precipitation0.04 in
Chance of precipitation17%
Record high93° (2023)
Record low56° (2000)
Sun, 0674° / 66°0.11
74 °
East Moriches, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high74°
Average low66°
Average precipitation0.11 in
Chance of precipitation28%
Record high93° (2023)
Record low56° (1962)
Mon, 0774° / 65°0.09
74 °
East Moriches, Monday, 7 September
Climate normal for this date — 60-year average.
Average high74°
Average low65°
Average precipitation0.09 in
Chance of precipitation23%
Record high95° (2023)
Record low57° (1963)
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 East Moriches, 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 East Moriches, 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.