Monthly outlook for Blue Hills, MA: average high 84.3°, average low 65.6°. That is 3.6° above the climate normal for August. Precipitation is expected on 1 day (about 0.2 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 9 August (92.5°), the coolest 15 August (56.8°).
84.3°/65.6°
Average high / low
+3.6°
Above normal
1 / 5
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
83.7°
78.5°
+2.8°
19 August – 28 August
85.4°
76.7°
+4.8°
29 August – 7 September
at normal
74.9°
—
August records over 66 years
97.2°4 August 2022All-time high
49.1°30 August 1965All-time low
Climate normals and records are computed from the nearest reference point — Quincy (4 mi).
Mon, 1090° / 70°0
90 °
Blue Hills, Monday, 10 August
Clear. High 90°, low 70°.
Pressure29.94 inHg
Wind5 mph SW
Humidity34%
Visibility6.2 mi
Dew point57°
Tue, 1190° / 70°0
90 °
Blue Hills, Tuesday, 11 August
Overcast. High 90°, low 70°.
Pressure29.74 inHg
Wind8 mph W
Humidity39%
Visibility6.2 mi
Dew point58°
Wed, 1280° / 68°0
80 °
Blue Hills, Wednesday, 12 August
Overcast. High 80°, low 68°.
Pressure29.74 inHg
Wind3.5 mph SE
Humidity32%
Visibility6.2 mi
Dew point52°
Thu, 1383° / 65°0.03
83 °
Blue Hills, Thursday, 13 August
Light rain. High 83°, low 65°.
Pressure29.65 inHg
Wind14.2 mph W
Humidity54%
Visibility—
Dew point59°
Fri, 1476° / 59°0
76 °
Blue Hills, Friday, 14 August
Clear. High 76°, low 59°.
Pressure29.85 inHg
Wind15.5 mph NW
Humidity38%
Visibility—
Dew point43°
Sat, 1579° / 57°0
79 °
Blue Hills, Saturday, 15 August
Clear. High 79°, low 57°.
Pressure29.91 inHg
Wind15.3 mph NW
Humidity36%
Visibility—
Dew point43°
Sun, 1680° / 61°0
80 °
Blue Hills, Sunday, 16 August
Overcast. High 80°, low 61°.
Pressure30.09 inHg
Wind7.4 mph NW
Humidity33%
Visibility—
Dew point44°
Mon, 1784° / 64°0.12
84 °
Blue Hills, Monday, 17 August
Light rain. High 84°, low 64°.
Pressure30.00 inHg
Wind9.2 mph S
Humidity35%
Visibility—
Dew point47°
Tue, 1882° / 60°0.01
82 °
Blue Hills, Tuesday, 18 August
Light rain. High 82°, low 60°.
Pressure30.00 inHg
Wind9 mph SE
Humidity43%
Visibility—
Dew point51°
Wed, 1979° / 63°0
79 °
Blue Hills, Wednesday, 19 August
Overcast. High 79°, low 63°.
Pressure30.15 inHg
Wind7.8 mph E
Humidity51%
Visibility—
Dew point55°
Thu, 2089° / 65°0
89 °
Blue Hills, Thursday, 20 August
Overcast. High 89°, low 65°.
Pressure30.09 inHg
Wind12.2 mph S
Humidity41%
Visibility—
Dew point55°
Fri, 2190° / 70°0.02
90 °
Blue Hills, Friday, 21 August
Light rain. High 90°, low 70°.
Pressure29.88 inHg
Wind12.9 mph SW
Humidity50%
Visibility—
Dew point62°
Sat, 2291° / 72°0.03
91 °
Blue Hills, Saturday, 22 August
Light rain. High 91°, low 72°.
Pressure29.85 inHg
Wind9.5 mph E
Humidity53%
Visibility—
Dew point66°
Sun, 2387° / 69°0
87 °
Blue Hills, Sunday, 23 August
Clear. High 87°, low 69°.
Pressure29.94 inHg
Wind8.7 mph E
Humidity46%
Visibility—
Dew point58°
Mon, 2475° / 65°0.02
75 °
Blue Hills, Monday, 24 August
Light rain. High 75°, low 65°.
Pressure30.06 inHg
Wind12.9 mph NE
Humidity72%
Visibility—
Dew point63°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2576° / 63°0.09
76 °
Blue Hills, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high76°
Average low63°
Average precipitation0.09 in
Chance of precipitation28%
Record high92° (1969)
Record low54° (1971)
Wed, 2678° / 63°0.06
78 °
Blue Hills, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high78°
Average low63°
Average precipitation0.06 in
Chance of precipitation15%
Record high90° (2021)
Record low51° (1981)
Thu, 2777° / 64°0.07
77 °
Blue Hills, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high77°
Average low64°
Average precipitation0.07 in
Chance of precipitation28%
Record high92° (1993)
Record low52° (2019)
Fri, 2877° / 64°0.11
77 °
Blue Hills, Friday, 28 August
Climate normal for this date — 60-year average.
Average high77°
Average low64°
Average precipitation0.11 in
Chance of precipitation35%
Record high93° (2018)
Record low55° (1986)
Sat, 2976° / 63°0.17
76 °
Blue Hills, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high76°
Average low63°
Average precipitation0.17 in
Chance of precipitation25%
Record high95° (2018)
Record low49° (1982)
Sun, 3077° / 63°0.15
77 °
Blue Hills, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high77°
Average low63°
Average precipitation0.15 in
Chance of precipitation22%
Record high89° (1973)
Record low49° (1965)
Mon, 3176° / 62°0.07
76 °
Blue Hills, Monday, 31 August
Climate normal for this date — 60-year average.
Average high76°
Average low62°
Average precipitation0.07 in
Chance of precipitation23%
Record high89° (2010)
Record low49° (1965)
Tue, 0175° / 62°0.06
75 °
Blue Hills, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high75°
Average low62°
Average precipitation0.06 in
Chance of precipitation22%
Record high90° (2010)
Record low52° (1975)
Wed, 0274° / 61°0.17
74 °
Blue Hills, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high74°
Average low61°
Average precipitation0.17 in
Chance of precipitation25%
Record high91° (2010)
Record low51° (2017)
Thu, 0374° / 61°0.14
74 °
Blue Hills, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high74°
Average low61°
Average precipitation0.14 in
Chance of precipitation33%
Record high93° (2018)
Record low51° (1967)
Fri, 0475° / 61°0.12
75 °
Blue Hills, Friday, 4 September
Climate normal for this date — 60-year average.
Average high75°
Average low61°
Average precipitation0.12 in
Chance of precipitation22%
Record high87° (1973)
Record low52° (1987)
Sat, 0574° / 61°0.07
74 °
Blue Hills, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high74°
Average low61°
Average precipitation0.07 in
Chance of precipitation17%
Record high89° (2018)
Record low50° (1994)
Sun, 0674° / 61°0.15
74 °
Blue Hills, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high74°
Average low61°
Average precipitation0.15 in
Chance of precipitation35%
Record high94° (2018)
Record low49° (1965)
Mon, 0774° / 60°0.12
74 °
Blue Hills, Monday, 7 September
Climate normal for this date — 60-year average.
Average high74°
Average low60°
Average precipitation0.12 in
Chance of precipitation28%
Record high90° (1983)
Record low50° (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 Blue Hills, MA 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 Blue Hills, MA 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.