Monthly outlook for East Lexington, MA: average high 82.5°, average low 62.3°. That is 1.7° above the climate normal for August. Precipitation is expected on 5 days (about 0.6 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 24 August (91.2°), the coolest 15 August (55.5°).
82.5°/62.3°
Average high / low
+1.7°
Above normal
5 / 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°
80.3°
+0.7°
19 August – 28 August
84°
78.5°
+3°
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 (2 mi).
Mon, 1090° / 67°0.06
90 °
East Lexington, Monday, 10 August
Light rain. High 90°, low 67°.
Pressure29.94 inHg
Wind5.1 mph SW
Humidity33%
Visibility6.2 mi
Dew point56°
Tue, 1188° / 69°0
88 °
East Lexington, Tuesday, 11 August
Partly cloudy. High 88°, low 69°.
Pressure29.77 inHg
Wind10.4 mph NW
Humidity35%
Visibility6.2 mi
Dew point55°
Wed, 1275° / 64°0.06
75 °
East Lexington, Wednesday, 12 August
Light rain. High 75°, low 64°.
Pressure29.80 inHg
Wind3.5 mph N
Humidity50%
Visibility6.2 mi
Dew point54°
Thu, 1385° / 59°0
85 °
East Lexington, Thursday, 13 August
Partly cloudy. High 85°, low 59°.
Pressure29.74 inHg
Wind10.8 mph NW
Humidity39%
Visibility6.2 mi
Dew point54°
Fri, 1477° / 58°0
77 °
East Lexington, Friday, 14 August
Overcast. High 77°, low 58°.
Pressure30.03 inHg
Wind12.2 mph NW
Humidity32%
Visibility—
Dew point39°
Sat, 1578° / 55°0
78 °
East Lexington, Saturday, 15 August
Partly cloudy. High 78°, low 55°.
Pressure30.18 inHg
Wind6 mph SE
Humidity34%
Visibility—
Dew point41°
Sun, 1674° / 58°0.3
74 °
East Lexington, Sunday, 16 August
Rain. High 74°, low 58°.
Pressure30.00 inHg
Wind15.4 mph S
Humidity62%
Visibility—
Dew point58°
Mon, 1775° / 62°0.09
75 °
East Lexington, Monday, 17 August
Light rain. High 75°, low 62°.
Pressure29.80 inHg
Wind12.5 mph NW
Humidity64%
Visibility—
Dew point55°
Tue, 1884° / 60°0
84 °
East Lexington, Tuesday, 18 August
Partly cloudy. High 84°, low 60°.
Pressure30.09 inHg
Wind7.5 mph S
Humidity41%
Visibility—
Dew point51°
Wed, 1985° / 69°0.04
85 °
East Lexington, Wednesday, 19 August
Light rain. High 85°, low 69°.
Pressure29.85 inHg
Wind12.6 mph W
Humidity92%
Visibility—
Dew point68°
Thu, 2082° / 59°0
82 °
East Lexington, Thursday, 20 August
Clear. High 82°, low 59°.
Pressure29.94 inHg
Wind7.1 mph NW
Humidity42%
Visibility—
Dew point49°
Fri, 2184° / 65°0.04
84 °
East Lexington, Friday, 21 August
Light rain. High 84°, low 65°.
Pressure29.77 inHg
Wind13 mph SW
Humidity74%
Visibility—
Dew point63°
Sat, 2278° / 61°0
78 °
East Lexington, Saturday, 22 August
Overcast. High 78°, low 61°.
Pressure29.94 inHg
Wind7.3 mph E
Humidity61%
Visibility—
Dew point57°
Sun, 2384° / 59°0
84 °
East Lexington, Sunday, 23 August
Clear. High 84°, low 59°.
Pressure30.06 inHg
Wind9.1 mph S
Humidity43%
Visibility—
Dew point53°
Mon, 2491° / 61°0.02
91 °
East Lexington, Monday, 24 August
Light rain. High 91°, low 61°.
Pressure29.94 inHg
Wind9.6 mph SW
Humidity45%
Visibility—
Dew point57°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2578° / 62°0.1
78 °
East Lexington, 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 Lexington, 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 Lexington, 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 Lexington, 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 Lexington, 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 Lexington, 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 Lexington, 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 Lexington, 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 Lexington, 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 Lexington, 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 Lexington, 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 Lexington, 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 Lexington, 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 Lexington, 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 Lexington, 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 Lexington, 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.