Monthly outlook for East Arlington, MA: average high 83.1°, average low 64.1°. That is 2° above the climate normal for August. Precipitation is expected on 5 days (about 1.7 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 9 August (92.8°), the coolest 16 August (59.1°).
83.1°/64.1°
Average high / low
+2°
Above normal
5 / 5
Wet days / normal
1.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
83.9°
80.3°
+2°
19 August – 28 August
81.7°
78.5°
+1.8°
29 August – 7 September
at normal
76.6°
—
August records over 66 years
100.4°2 August 1975All-time high
46.6°31 August 1965All-time low
Climate normals and records are computed from the nearest reference point — Arlington (1 mi).
Mon, 1093° / 70°0
93 °
East Arlington, Monday, 10 August
Partly cloudy. High 93°, low 70°.
Pressure29.94 inHg
Wind5.1 mph SW
Humidity29%
Visibility6.2 mi
Dew point53°
Tue, 1192° / 70°0
92 °
East Arlington, Tuesday, 11 August
Overcast. High 92°, low 70°.
Pressure29.77 inHg
Wind11.3 mph W
Humidity40%
Visibility6.2 mi
Dew point59°
Wed, 1289° / 65°0
89 °
East Arlington, Wednesday, 12 August
Partly cloudy. High 89°, low 65°.
Pressure29.80 inHg
Wind4 mph SW
Humidity26%
Visibility6.2 mi
Dew point48°
Thu, 1387° / 66°0.17
87 °
East Arlington, Thursday, 13 August
Rain. High 87°, low 66°.
Pressure29.62 inHg
Wind14.6 mph W
Humidity47%
Visibility—
Dew point59°
Fri, 1479° / 60°0
79 °
East Arlington, Friday, 14 August
Clear. High 79°, low 60°.
Pressure29.88 inHg
Wind13.2 mph W
Humidity36%
Visibility—
Dew point43°
Sat, 1580° / 60°0
80 °
East Arlington, Saturday, 15 August
Clear. High 80°, low 60°.
Pressure30.03 inHg
Wind12.1 mph NW
Humidity32%
Visibility—
Dew point41°
Sun, 1682° / 59°0
82 °
East Arlington, Sunday, 16 August
Overcast. High 82°, low 59°.
Pressure30.12 inHg
Wind7.2 mph SE
Humidity28%
Visibility—
Dew point40°
Mon, 1770° / 62°0.36
70 °
East Arlington, Monday, 17 August
Rain. High 70°, low 62°.
Pressure30.03 inHg
Wind5.6 mph NE
Humidity59%
Visibility—
Dew point53°
Tue, 1875° / 62°0.62
75 °
East Arlington, Tuesday, 18 August
Rain. High 75°, low 62°.
Pressure29.94 inHg
Wind9.4 mph N
Humidity77%
Visibility—
Dew point60°
Wed, 1978° / 62°0
78 °
East Arlington, Wednesday, 19 August
Overcast. High 78°, low 62°.
Pressure29.94 inHg
Wind10.9 mph S
Humidity57%
Visibility—
Dew point60°
Thu, 2081° / 66°0.15
81 °
East Arlington, Thursday, 20 August
Light rain. High 81°, low 66°.
Pressure29.68 inHg
Wind8.1 mph SW
Humidity65%
Visibility—
Dew point65°
Fri, 2179° / 63°0
79 °
East Arlington, Friday, 21 August
Overcast. High 79°, low 63°.
Pressure29.85 inHg
Wind5.9 mph NW
Humidity81%
Visibility—
Dew point62°
Sat, 2287° / 63°0
87 °
East Arlington, Saturday, 22 August
Clear. High 87°, low 63°.
Pressure29.94 inHg
Wind8.9 mph S
Humidity42%
Visibility—
Dew point53°
Sun, 2387° / 68°0.35
87 °
East Arlington, Sunday, 23 August
Rain. High 87°, low 68°.
Pressure29.77 inHg
Wind13.8 mph SW
Humidity88%
Visibility—
Dew point73°
Mon, 2478° / 60°0
78 °
East Arlington, Monday, 24 August
Clear. High 78°, low 60°.
Pressure30.12 inHg
Wind8.7 mph NW
Humidity35%
Visibility—
Dew point41°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2578° / 62°0.1
78 °
East Arlington, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.1 in
Chance of precipitation25%
Record high95° (2007)
Record low53° (1971)
Wed, 2680° / 62°0.06
80 °
East Arlington, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high80°
Average low62°
Average precipitation0.06 in
Chance of precipitation18%
Record high94° (1993)
Record low51° (1981)
Thu, 2779° / 64°0.09
79 °
East Arlington, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high79°
Average low64°
Average precipitation0.09 in
Chance of precipitation35%
Record high96° (1993)
Record low52° (1989)
Fri, 2878° / 64°0.12
78 °
East Arlington, Friday, 28 August
Climate normal for this date — 60-year average.
Average high78°
Average low64°
Average precipitation0.12 in
Chance of precipitation30%
Record high95° (1993)
Record low53° (1986)
Sat, 2977° / 63°0.16
77 °
East Arlington, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high77°
Average low63°
Average precipitation0.16 in
Chance of precipitation30%
Record high95° (2018)
Record low48° (1986)
Sun, 3078° / 62°0.13
78 °
East Arlington, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.13 in
Chance of precipitation25%
Record high93° (1973)
Record low48° (1965)
Mon, 3178° / 62°0.07
78 °
East Arlington, Monday, 31 August
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.07 in
Chance of precipitation25%
Record high92° (1973)
Record low47° (1965)
Tue, 0176° / 61°0.05
76 °
East Arlington, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high76°
Average low61°
Average precipitation0.05 in
Chance of precipitation23%
Record high93° (2010)
Record low50° (1975)
Wed, 0276° / 60°0.15
76 °
East Arlington, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.15 in
Chance of precipitation25%
Record high94° (2010)
Record low50° (2017)
Thu, 0376° / 61°0.12
76 °
East Arlington, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high76°
Average low61°
Average precipitation0.12 in
Chance of precipitation32%
Record high94° (2018)
Record low50° (1967)
Fri, 0476° / 61°0.11
76 °
East Arlington, Friday, 4 September
Climate normal for this date — 60-year average.
Average high76°
Average low61°
Average precipitation0.11 in
Chance of precipitation23%
Record high91° (1973)
Record low50° (1987)
Sat, 0576° / 61°0.07
76 °
East Arlington, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high76°
Average low61°
Average precipitation0.07 in
Chance of precipitation17%
Record high90° (1971)
Record low50° (1994)
Sun, 0675° / 60°0.15
75 °
East Arlington, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high75°
Average low60°
Average precipitation0.15 in
Chance of precipitation32%
Record high95° (2018)
Record low50° (2000)
Mon, 0776° / 60°0.11
76 °
East Arlington, Monday, 7 September
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.11 in
Chance of precipitation25%
Record high93° (2007)
Record low48° (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 East Arlington, 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 East Arlington, 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.