Monthly outlook for West Duxbury, MA: average high 80.7°, average low 63.7°. That is 1.2° above the climate normal for August. Precipitation is expected on 4 days (about 0.6 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 9 August (89.6°), the coolest 15 August (58.5°).
80.7°/63.7°
Average high / low
+1.2°
Above normal
4 / 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
81.6°
79.4°
+1.2°
19 August – 28 August
79.1°
77.5°
+0.9°
29 August – 7 September
at normal
75.6°
—
August records over 66 years
98.4°2 August 2006All-time high
48.4°29 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Halifax (6 mi).
Mon, 1089° / 68°0
89 °
West Duxbury, Monday, 10 August
Overcast. High 89°, low 68°.
Pressure29.94 inHg
Wind4.4 mph E
Humidity46%
Visibility6.2 mi
Dew point61°
Tue, 1188° / 69°0.02
88 °
West Duxbury, Tuesday, 11 August
Light rain. High 88°, low 69°.
Pressure29.74 inHg
Wind8 mph NW
Humidity41%
Visibility6.2 mi
Dew point59°
Wed, 1280° / 65°0
80 °
West Duxbury, Wednesday, 12 August
Overcast. High 80°, low 65°.
Pressure29.80 inHg
Wind5.7 mph NE
Humidity40%
Visibility6.2 mi
Dew point54°
Thu, 1384° / 63°0
84 °
West Duxbury, Thursday, 13 August
Clear. High 84°, low 63°.
Pressure29.74 inHg
Wind9.3 mph W
Humidity44%
Visibility6.2 mi
Dew point58°
Fri, 1477° / 61°0
77 °
West Duxbury, Friday, 14 August
Overcast. High 77°, low 61°.
Pressure30.03 inHg
Wind12.6 mph NW
Humidity34%
Visibility—
Dew point41°
Sat, 1572° / 59°0
72 °
West Duxbury, Saturday, 15 August
Overcast. High 72°, low 59°.
Pressure30.18 inHg
Wind9.4 mph S
Humidity40%
Visibility—
Dew point45°
Sun, 1680° / 60°0.18
80 °
West Duxbury, Sunday, 16 August
Light rain. High 80°, low 60°.
Pressure30.00 inHg
Wind22.9 mph S
Humidity49%
Visibility—
Dew point56°
Mon, 1774° / 63°0.11
74 °
West Duxbury, Monday, 17 August
Light rain. High 74°, low 63°.
Pressure29.80 inHg
Wind13.4 mph SW
Humidity71%
Visibility—
Dew point57°
Tue, 1883° / 60°0
83 °
West Duxbury, Tuesday, 18 August
Overcast. High 83°, low 60°.
Pressure30.09 inHg
Wind10.2 mph S
Humidity44%
Visibility—
Dew point53°
Wed, 1979° / 69°0.19
79 °
West Duxbury, Wednesday, 19 August
Light rain. High 79°, low 69°.
Pressure29.85 inHg
Wind16 mph SW
Humidity95%
Visibility—
Dew point69°
Thu, 2076° / 61°0
76 °
West Duxbury, Thursday, 20 August
Mostly clear. High 76°, low 61°.
Pressure29.94 inHg
Wind7.3 mph NW
Humidity52%
Visibility—
Dew point53°
Fri, 2181° / 67°0.03
81 °
West Duxbury, Friday, 21 August
Light rain. High 81°, low 67°.
Pressure29.80 inHg
Wind14.4 mph SW
Humidity56%
Visibility—
Dew point62°
Sat, 2272° / 63°0
72 °
West Duxbury, Saturday, 22 August
Overcast. High 72°, low 63°.
Pressure29.94 inHg
Wind8.5 mph NE
Humidity74%
Visibility—
Dew point60°
Sun, 2379° / 61°0
79 °
West Duxbury, Sunday, 23 August
Clear. High 79°, low 61°.
Pressure30.09 inHg
Wind11.2 mph S
Humidity48%
Visibility—
Dew point53°
Mon, 2488° / 61°0.06
88 °
West Duxbury, Monday, 24 August
Light rain. High 88°, low 61°.
Pressure29.97 inHg
Wind12.3 mph SW
Humidity52%
Visibility—
Dew point60°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2577° / 63°0.1
77 °
West Duxbury, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high77°
Average low63°
Average precipitation0.1 in
Chance of precipitation32%
Record high93° (1969)
Record low53° (1987)
Wed, 2679° / 63°0.07
79 °
West Duxbury, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.07 in
Chance of precipitation23%
Record high92° (2021)
Record low53° (1981)
Thu, 2778° / 64°0.06
78 °
West Duxbury, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high78°
Average low64°
Average precipitation0.06 in
Chance of precipitation28%
Record high94° (1993)
Record low53° (2019)
Fri, 2878° / 64°0.12
78 °
West Duxbury, Friday, 28 August
Climate normal for this date — 60-year average.
Average high78°
Average low64°
Average precipitation0.12 in
Chance of precipitation33%
Record high93° (2018)
Record low52° (2025)
Sat, 2977° / 64°0.2
77 °
West Duxbury, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high77°
Average low64°
Average precipitation0.2 in
Chance of precipitation27%
Record high92° (2018)
Record low48° (1986)
Sun, 3077° / 63°0.13
77 °
West Duxbury, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high77°
Average low63°
Average precipitation0.13 in
Chance of precipitation22%
Record high91° (1973)
Record low49° (1986)
Mon, 3177° / 62°0.05
77 °
West Duxbury, Monday, 31 August
Climate normal for this date — 60-year average.
Average high77°
Average low62°
Average precipitation0.05 in
Chance of precipitation20%
Record high90° (2012)
Record low49° (1965)
Tue, 0175° / 62°0.06
75 °
West Duxbury, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high75°
Average low62°
Average precipitation0.06 in
Chance of precipitation18%
Record high92° (2010)
Record low53° (2017)
Wed, 0275° / 61°0.17
75 °
West Duxbury, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high75°
Average low61°
Average precipitation0.17 in
Chance of precipitation25%
Record high92° (2010)
Record low49° (2017)
Thu, 0375° / 61°0.15
75 °
West Duxbury, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high75°
Average low61°
Average precipitation0.15 in
Chance of precipitation37%
Record high91° (2018)
Record low50° (1967)
Fri, 0476° / 61°0.13
76 °
West Duxbury, Friday, 4 September
Climate normal for this date — 60-year average.
Average high76°
Average low61°
Average precipitation0.13 in
Chance of precipitation25%
Record high88° (1973)
Record low53° (1997)
Sat, 0575° / 61°0.07
75 °
West Duxbury, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high75°
Average low61°
Average precipitation0.07 in
Chance of precipitation18%
Record high90° (1971)
Record low51° (1994)
Sun, 0674° / 61°0.15
74 °
West Duxbury, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high74°
Average low61°
Average precipitation0.15 in
Chance of precipitation33%
Record high94° (2018)
Record low51° (1994)
Mon, 0775° / 60°0.12
75 °
West Duxbury, Monday, 7 September
Climate normal for this date — 60-year average.
Average high75°
Average low60°
Average precipitation0.12 in
Chance of precipitation30%
Record high93° (2023)
Record low50° (1962)
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 West Duxbury, 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 West Duxbury, 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.