Monthly outlook for Lake Forest Park, MA: average high 82.5°, average low 61.9°. That is 1.7° 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 10 August (90.3°), the coolest 16 August (55.8°).
82.5°/61.9°
Average high / low
+1.7°
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
82.8°
80.2°
+1.4°
19 August – 28 August
82.1°
78.3°
+2.1°
29 August – 7 September
at normal
76.4°
—
August records over 66 years
100°2 August 1975All-time high
46.2°31 August 1965All-time low
Climate normals and records are computed from the nearest reference point — Belmont (11 mi).
Mon, 1090° / 69°0
90 °
Lake Forest Park, Monday, 10 August
Mostly clear. High 90°, low 69°.
Pressure29.94 inHg
Wind7 mph SW
Humidity33%
Visibility6.2 mi
Dew point55°
Tue, 1190° / 67°0
90 °
Lake Forest Park, Tuesday, 11 August
Overcast. High 90°, low 67°.
Pressure29.80 inHg
Wind9.2 mph W
Humidity56%
Visibility6.2 mi
Dew point62°
Wed, 1287° / 62°0
87 °
Lake Forest Park, Wednesday, 12 August
Partly cloudy. High 87°, low 62°.
Pressure29.80 inHg
Wind5.5 mph SW
Humidity31%
Visibility6.2 mi
Dew point50°
Thu, 1385° / 63°0.21
85 °
Lake Forest Park, Thursday, 13 August
Rain. High 85°, low 63°.
Pressure29.62 inHg
Wind14.5 mph W
Humidity48%
Visibility—
Dew point59°
Fri, 1478° / 57°0
78 °
Lake Forest Park, Friday, 14 August
Clear. High 78°, low 57°.
Pressure29.91 inHg
Wind13.2 mph W
Humidity38%
Visibility—
Dew point43°
Sat, 1578° / 57°0
78 °
Lake Forest Park, Saturday, 15 August
Clear. High 78°, low 57°.
Pressure30.06 inHg
Wind12.1 mph NW
Humidity37%
Visibility—
Dew point43°
Sun, 1682° / 56°0
82 °
Lake Forest Park, Sunday, 16 August
Overcast. High 82°, low 56°.
Pressure30.12 inHg
Wind6 mph N
Humidity33%
Visibility—
Dew point43°
Mon, 1767° / 61°0.48
67 °
Lake Forest Park, Monday, 17 August
Rain. High 67°, low 61°.
Pressure30.03 inHg
Wind6 mph NE
Humidity72%
Visibility—
Dew point56°
Tue, 1880° / 61°0.45
80 °
Lake Forest Park, Tuesday, 18 August
Rain. High 80°, low 61°.
Pressure29.94 inHg
Wind8.9 mph N
Humidity75%
Visibility—
Dew point58°
Wed, 1979° / 61°0
79 °
Lake Forest Park, Wednesday, 19 August
Overcast. High 79°, low 61°.
Pressure29.94 inHg
Wind11.2 mph S
Humidity53%
Visibility—
Dew point58°
Thu, 2081° / 63°0.15
81 °
Lake Forest Park, Thursday, 20 August
Light rain. High 81°, low 63°.
Pressure29.68 inHg
Wind7.7 mph SW
Humidity77%
Visibility—
Dew point68°
Fri, 2182° / 61°0
82 °
Lake Forest Park, Friday, 21 August
Overcast. High 82°, low 61°.
Pressure29.85 inHg
Wind5.3 mph SE
Humidity76%
Visibility—
Dew point61°
Sat, 2287° / 60°0
87 °
Lake Forest Park, Saturday, 22 August
Clear. High 87°, low 60°.
Pressure29.94 inHg
Wind9.2 mph SW
Humidity42%
Visibility—
Dew point53°
Sun, 2386° / 66°0.4
86 °
Lake Forest Park, Sunday, 23 August
Rain. High 86°, low 66°.
Pressure29.77 inHg
Wind14.5 mph SW
Humidity95%
Visibility—
Dew point73°
Mon, 2477° / 56°0
77 °
Lake Forest Park, Monday, 24 August
Clear. High 77°, low 56°.
Pressure30.12 inHg
Wind8.1 mph NW
Humidity34%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2578° / 62°0.11
78 °
Lake Forest Park, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.11 in
Chance of precipitation25%
Record high94° (2007)
Record low52° (1971)
Wed, 2680° / 62°0.06
80 °
Lake Forest Park, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high80°
Average low62°
Average precipitation0.06 in
Chance of precipitation17%
Record high94° (2021)
Record low51° (1981)
Thu, 2779° / 63°0.09
79 °
Lake Forest Park, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.09 in
Chance of precipitation35%
Record high96° (1993)
Record low52° (1989)
Fri, 2878° / 63°0.12
78 °
Lake Forest Park, Friday, 28 August
Climate normal for this date — 60-year average.
Average high78°
Average low63°
Average precipitation0.12 in
Chance of precipitation30%
Record high94° (1993)
Record low53° (1986)
Sat, 2977° / 63°0.17
77 °
Lake Forest Park, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high77°
Average low63°
Average precipitation0.17 in
Chance of precipitation30%
Record high94° (2018)
Record low48° (1986)
Sun, 3078° / 62°0.13
78 °
Lake Forest Park, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.13 in
Chance of precipitation25%
Record high92° (1973)
Record low48° (1965)
Mon, 3178° / 61°0.08
78 °
Lake Forest Park, Monday, 31 August
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.08 in
Chance of precipitation25%
Record high92° (1973)
Record low46° (1965)
Tue, 0176° / 61°0.06
76 °
Lake Forest Park, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high76°
Average low61°
Average precipitation0.06 in
Chance of precipitation23%
Record high93° (2010)
Record low50° (1975)
Wed, 0276° / 60°0.15
76 °
Lake Forest Park, 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 low48° (2017)
Thu, 0376° / 60°0.12
76 °
Lake Forest Park, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.12 in
Chance of precipitation32%
Record high93° (2018)
Record low50° (1967)
Fri, 0476° / 60°0.11
76 °
Lake Forest Park, Friday, 4 September
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.11 in
Chance of precipitation23%
Record high90° (1973)
Record low50° (1987)
Sat, 0576° / 60°0.07
76 °
Lake Forest Park, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.07 in
Chance of precipitation17%
Record high93° (2018)
Record low50° (1994)
Sun, 0675° / 60°0.15
75 °
Lake Forest Park, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high75°
Average low60°
Average precipitation0.15 in
Chance of precipitation32%
Record high94° (2018)
Record low50° (2000)
Mon, 0776° / 59°0.11
76 °
Lake Forest Park, Monday, 7 September
Climate normal for this date — 60-year average.
Average high76°
Average low59°
Average precipitation0.11 in
Chance of precipitation25%
Record high93° (2023)
Record low47° (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 Lake Forest Park, 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 Lake Forest Park, 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.