Monthly outlook for Groveland, MA: average high 81.6°, average low 60.7°. That is 0.9° above the climate normal for August. Precipitation is expected on 5 days (about 1.4 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 9 August (94°), the coolest 22 August (53°).
81.6°/60.7°
Average high / low
+0.9°
Above normal
5 / 5
Wet days / normal
1.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
83.4°
80.7°
+1.5°
18 August – 27 August
78.7°
78.8°
-0.1°
28 August – 6 September
at normal
77°
—
August records over 66 years
101.7°2 August 1975All-time high
46°31 August 1965All-time low
Climate normals and records are computed from the nearest reference point — Lawrence (8 mi).
Sun, 0994° / 71°0
94 °
Groveland, Sunday, 9 August
Clear. High 94°, low 71°.
Pressure29.88 inHg
Wind11.2 mph W
Humidity40%
Visibility6.2 mi
Dew point62°
Mon, 1093° / 70°0.01
93 °
Groveland, Monday, 10 August
Light rain. High 93°, low 70°.
Pressure29.94 inHg
Wind6.9 mph S
Humidity35%
Visibility6.2 mi
Dew point57°
Tue, 1188° / 67°0.05
88 °
Groveland, Tuesday, 11 August
Light rain. High 88°, low 67°.
Pressure29.74 inHg
Wind11.5 mph NW
Humidity41%
Visibility6.2 mi
Dew point59°
Wed, 1270° / 60°0.33
70 °
Groveland, Wednesday, 12 August
Rain. High 70°, low 60°.
Pressure29.74 inHg
Wind6 mph NE
Humidity98%
Visibility6.2 mi
Dew point61°
Thu, 1384° / 60°0.03
84 °
Groveland, Thursday, 13 August
Light rain. High 84°, low 60°.
Pressure29.68 inHg
Wind10 mph W
Humidity56%
Visibility—
Dew point59°
Fri, 1477° / 57°0
77 °
Groveland, Friday, 14 August
Clear. High 77°, low 57°.
Pressure29.91 inHg
Wind11.2 mph W
Humidity37%
Visibility—
Dew point42°
Sat, 1579° / 57°0
79 °
Groveland, Saturday, 15 August
Clear. High 79°, low 57°.
Pressure30.00 inHg
Wind11.8 mph NW
Humidity45%
Visibility—
Dew point48°
Sun, 1679° / 55°0
79 °
Groveland, Sunday, 16 August
Clear. High 79°, low 55°.
Pressure30.15 inHg
Wind8.4 mph SE
Humidity36%
Visibility—
Dew point44°
Mon, 1783° / 55°0
83 °
Groveland, Monday, 17 August
Overcast. High 83°, low 55°.
Pressure30.15 inHg
Wind10.4 mph S
Humidity37%
Visibility—
Dew point46°
Tue, 1878° / 61°0.21
78 °
Groveland, Tuesday, 18 August
Light rain. High 78°, low 61°.
Pressure30.15 inHg
Wind7.7 mph SW
Humidity96%
Visibility—
Dew point60°
Wed, 1983° / 60°0
83 °
Groveland, Wednesday, 19 August
Overcast. High 83°, low 60°.
Pressure29.97 inHg
Wind9.4 mph SE
Humidity44%
Visibility—
Dew point52°
Thu, 2076° / 62°0.45
76 °
Groveland, Thursday, 20 August
Rain. High 76°, low 62°.
Pressure29.65 inHg
Wind11.3 mph S
Humidity95%
Visibility—
Dew point68°
Fri, 2173° / 57°0
73 °
Groveland, Friday, 21 August
Clear. High 73°, low 57°.
Pressure29.62 inHg
Wind14.4 mph NW
Humidity52%
Visibility—
Dew point52°
Sat, 2277° / 53°0
77 °
Groveland, Saturday, 22 August
Clear. High 77°, low 53°.
Pressure29.97 inHg
Wind10.4 mph NW
Humidity32%
Visibility—
Dew point37°
Sun, 2384° / 55°0
84 °
Groveland, Sunday, 23 August
Light rain. High 84°, low 55°.
Pressure30.06 inHg
Wind9.9 mph S
Humidity32%
Visibility—
Dew point42°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2478° / 62°0.08
78 °
Groveland, Monday, 24 August
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.08 in
Chance of precipitation28%
Record high91° (2007)
Record low52° (1971)
Tue, 2578° / 62°0.12
78 °
Groveland, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.12 in
Chance of precipitation27%
Record high96° (2007)
Record low53° (1971)
Wed, 2680° / 62°0.04
80 °
Groveland, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high80°
Average low62°
Average precipitation0.04 in
Chance of precipitation20%
Record high95° (1993)
Record low52° (1981)
Thu, 2780° / 63°0.08
80 °
Groveland, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.08 in
Chance of precipitation33%
Record high97° (1993)
Record low51° (1989)
Fri, 2879° / 63°0.12
79 °
Groveland, Friday, 28 August
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.12 in
Chance of precipitation27%
Record high95° (1993)
Record low53° (1986)
Sat, 2978° / 63°0.15
78 °
Groveland, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high78°
Average low63°
Average precipitation0.15 in
Chance of precipitation28%
Record high93° (2018)
Record low48° (1982)
Sun, 3079° / 62°0.11
79 °
Groveland, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.11 in
Chance of precipitation25%
Record high94° (1973)
Record low47° (1965)
Mon, 3178° / 61°0.09
78 °
Groveland, Monday, 31 August
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.09 in
Chance of precipitation28%
Record high93° (2010)
Record low46° (1965)
Tue, 0177° / 61°0.05
77 °
Groveland, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.05 in
Chance of precipitation23%
Record high94° (2010)
Record low49° (1975)
Wed, 0276° / 60°0.14
76 °
Groveland, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.14 in
Chance of precipitation27%
Record high94° (2010)
Record low49° (2017)
Thu, 0376° / 60°0.11
76 °
Groveland, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.11 in
Chance of precipitation35%
Record high93° (1973)
Record low51° (1967)
Fri, 0477° / 60°0.11
77 °
Groveland, Friday, 4 September
Climate normal for this date — 60-year average.
Average high77°
Average low60°
Average precipitation0.11 in
Chance of precipitation23%
Record high90° (1973)
Record low50° (1987)
Sat, 0576° / 60°0.08
76 °
Groveland, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.08 in
Chance of precipitation22%
Record high92° (2018)
Record low49° (1994)
Sun, 0675° / 60°0.13
75 °
Groveland, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high75°
Average low60°
Average precipitation0.13 in
Chance of precipitation27%
Record high94° (2018)
Record low49° (2000)
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 Groveland, 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 Groveland, 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.