Monthly outlook for East Boston, NY: average high 77.4°, average low 60.3°. That is 0.4° above the climate normal for August. Precipitation is expected on 6 days (about 1.1 inches), against a normal of 7 days and 2.4 inches. The warmest day looks like 21 August (87.8°), the coolest 15 August (49.3°).
77.4°/60.3°
Average high / low
+0.4°
Above normal
6 / 7
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
74.8°
77.4°
-1.4°
19 August – 28 August
81.7°
75.6°
+3.3°
29 August – 7 September
at normal
74.3°
—
August records over 66 years
95°9 August 2001All-time high
45°30 August 1965All-time low
Climate normals and records are computed from the nearest reference point — Sylvan Beach (10 mi).
Mon, 1083° / 66°0.15
83 °
East Boston, Monday, 10 August
Light rain. High 83°, low 66°.
Pressure29.97 inHg
Wind1.7 mph S
Humidity87%
Visibility6.2 mi
Dew point63°
Tue, 1179° / 65°0.03
79 °
East Boston, Tuesday, 11 August
Light rain. High 79°, low 65°.
Pressure29.85 inHg
Wind9.9 mph NW
Humidity58%
Visibility6.2 mi
Dew point60°
Wed, 1278° / 62°0.06
78 °
East Boston, Wednesday, 12 August
Light rain. High 78°, low 62°.
Pressure29.77 inHg
Wind4.4 mph E
Humidity84%
Visibility6.2 mi
Dew point61°
Thu, 1370° / 59°0.12
70 °
East Boston, Thursday, 13 August
Light rain. High 70°, low 59°.
Pressure29.77 inHg
Wind17.7 mph W
Humidity55%
Visibility—
Dew point52°
Fri, 1465° / 51°0.06
65 °
East Boston, Friday, 14 August
Light rain. High 65°, low 51°.
Pressure30.03 inHg
Wind14.5 mph NW
Humidity54%
Visibility—
Dew point47°
Sat, 1570° / 49°0
70 °
East Boston, Saturday, 15 August
Clear. High 70°, low 49°.
Pressure30.15 inHg
Wind14.9 mph NW
Humidity47%
Visibility—
Dew point47°
Sun, 1672° / 52°0
72 °
East Boston, Sunday, 16 August
Overcast. High 72°, low 52°.
Pressure30.15 inHg
Wind6.4 mph W
Humidity63%
Visibility—
Dew point56°
Mon, 1768° / 57°0
68 °
East Boston, Monday, 17 August
Overcast. High 68°, low 57°.
Pressure30.03 inHg
Wind3.3 mph NW
Humidity77%
Visibility—
Dew point58°
Tue, 1876° / 56°0.01
76 °
East Boston, Tuesday, 18 August
Light rain. High 76°, low 56°.
Pressure30.03 inHg
Wind8.3 mph NW
Humidity53%
Visibility—
Dew point56°
Wed, 1979° / 55°0
79 °
East Boston, Wednesday, 19 August
Overcast. High 79°, low 55°.
Pressure30.09 inHg
Wind4.9 mph SE
Humidity49%
Visibility—
Dew point56°
Thu, 2086° / 62°0
86 °
East Boston, Thursday, 20 August
Overcast. High 86°, low 62°.
Pressure29.94 inHg
Wind13.4 mph S
Humidity49%
Visibility—
Dew point62°
Fri, 2188° / 69°0.24
88 °
East Boston, Friday, 21 August
Rain. High 88°, low 69°.
Pressure29.80 inHg
Wind13.7 mph S
Humidity62%
Visibility—
Dew point71°
Sat, 2279° / 62°0
79 °
East Boston, Saturday, 22 August
Partly cloudy. High 79°, low 62°.
Pressure29.97 inHg
Wind8.4 mph NW
Humidity44%
Visibility—
Dew point54°
Sun, 2384° / 63°0.02
84 °
East Boston, Sunday, 23 August
Light rain. High 84°, low 63°.
Pressure29.94 inHg
Wind8.8 mph NW
Humidity47%
Visibility—
Dew point59°
Mon, 2474° / 66°0.39
74 °
East Boston, Monday, 24 August
Light rain. High 74°, low 66°.
Pressure30.03 inHg
Wind5.6 mph E
Humidity82%
Visibility—
Dew point68°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2576° / 61°0.12
76 °
East Boston, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high76°
Average low61°
Average precipitation0.12 in
Chance of precipitation35%
Record high92° (2007)
Record low46° (1971)
Wed, 2677° / 61°0.09
77 °
East Boston, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.09 in
Chance of precipitation35%
Record high85° (2021)
Record low49° (1977)
Thu, 2776° / 62°0.18
76 °
East Boston, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high76°
Average low62°
Average precipitation0.18 in
Chance of precipitation50%
Record high88° (1993)
Record low47° (1969)
Fri, 2876° / 62°0.26
76 °
East Boston, Friday, 28 August
Climate normal for this date — 60-year average.
Average high76°
Average low62°
Average precipitation0.26 in
Chance of precipitation52%
Record high90° (2018)
Record low49° (1968)
Sat, 2975° / 61°0.18
75 °
East Boston, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high75°
Average low61°
Average precipitation0.18 in
Chance of precipitation52%
Record high90° (2018)
Record low46° (1982)
Sun, 3075° / 60°0.15
75 °
East Boston, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high75°
Average low60°
Average precipitation0.15 in
Chance of precipitation38%
Record high90° (1991)
Record low45° (1965)
Mon, 3175° / 59°0.15
75 °
East Boston, Monday, 31 August
Climate normal for this date — 60-year average.
Average high75°
Average low59°
Average precipitation0.15 in
Chance of precipitation48%
Record high90° (1973)
Record low46° (1965)
Tue, 0174° / 59°0.07
74 °
East Boston, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high74°
Average low59°
Average precipitation0.07 in
Chance of precipitation30%
Record high88° (2010)
Record low47° (1967)
Wed, 0275° / 59°0.16
75 °
East Boston, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high75°
Average low59°
Average precipitation0.16 in
Chance of precipitation42%
Record high88° (2010)
Record low45° (2017)
Thu, 0374° / 59°0.15
74 °
East Boston, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high74°
Average low59°
Average precipitation0.15 in
Chance of precipitation37%
Record high90° (2010)
Record low46° (1976)
Fri, 0474° / 60°0.13
74 °
East Boston, Friday, 4 September
Climate normal for this date — 60-year average.
Average high74°
Average low60°
Average precipitation0.13 in
Chance of precipitation35%
Record high91° (1999)
Record low46° (1987)
Sat, 0574° / 59°0.12
74 °
East Boston, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high74°
Average low59°
Average precipitation0.12 in
Chance of precipitation28%
Record high91° (1973)
Record low46° (2000)
Sun, 0674° / 59°0.18
74 °
East Boston, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high74°
Average low59°
Average precipitation0.18 in
Chance of precipitation38%
Record high89° (2007)
Record low46° (2000)
Mon, 0773° / 58°0.14
73 °
East Boston, Monday, 7 September
Climate normal for this date — 60-year average.
Average high73°
Average low58°
Average precipitation0.14 in
Chance of precipitation38%
Record high92° (2007)
Record low44° (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 East Boston, 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 Boston, 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.