Monthly outlook for Randolph, MA: average high 78.7°, average low 63.7°. That is 0.4° above the climate normal for August. Precipitation is expected on 7 days (about 5.1 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 9 August (94°), the coolest 23 August (57.9°).
78.7°/63.7°
Average high / low
+0.4°
Above normal
7 / 5
Wet days / normal
5.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
82.3°
78.7°
+2°
18 August – 27 August
72.8°
76.8°
-2.2°
28 August – 6 September
at normal
75.1°
—
August records over 66 years
97.2°4 August 2022All-time high
49.1°30 August 1965All-time low
Climate normals and records are computed from the nearest reference point — Quincy (5 mi).
Sun, 0994° / 72°0.01
94 °
Randolph, Sunday, 9 August
Light rain. High 94°, low 72°.
Pressure29.88 inHg
Wind10.6 mph W
Humidity42%
Visibility6.2 mi
Dew point63°
Mon, 1090° / 70°0.06
90 °
Randolph, Monday, 10 August
Light rain. High 90°, low 70°.
Pressure29.94 inHg
Wind5.9 mph SW
Humidity37%
Visibility6.2 mi
Dew point58°
Tue, 1188° / 69°0
88 °
Randolph, Tuesday, 11 August
Partly cloudy. High 88°, low 69°.
Pressure29.77 inHg
Wind12 mph NW
Humidity36%
Visibility6.2 mi
Dew point57°
Wed, 1272° / 63°0.66
72 °
Randolph, Wednesday, 12 August
Rain. High 72°, low 63°.
Pressure29.77 inHg
Wind7.4 mph E
Humidity95%
Visibility6.2 mi
Dew point63°
Thu, 1379° / 60°0.31
79 °
Randolph, Thursday, 13 August
Light rain. High 79°, low 60°.
Pressure29.71 inHg
Wind9.5 mph W
Humidity66%
Visibility—
Dew point64°
Fri, 1477° / 58°0
77 °
Randolph, Friday, 14 August
Overcast. High 77°, low 58°.
Pressure29.88 inHg
Wind8.9 mph W
Humidity44%
Visibility—
Dew point45°
Sat, 1575° / 59°0
75 °
Randolph, Saturday, 15 August
Clear. High 75°, low 59°.
Pressure30.09 inHg
Wind7.8 mph NW
Humidity42%
Visibility—
Dew point46°
Sun, 1678° / 59°0
78 °
Randolph, Sunday, 16 August
Clear. High 78°, low 59°.
Pressure30.27 inHg
Wind10 mph S
Humidity37%
Visibility—
Dew point43°
Mon, 1781° / 60°0
81 °
Randolph, Monday, 17 August
Overcast. High 81°, low 60°.
Pressure30.21 inHg
Wind10.9 mph S
Humidity38%
Visibility—
Dew point47°
Tue, 1869° / 66°1.65
69 °
Randolph, Tuesday, 18 August
Heavy rain. High 69°, low 66°.
Pressure30.03 inHg
Wind10.6 mph S
Humidity96%
Visibility—
Dew point65°
Wed, 1974° / 65°0.01
74 °
Randolph, Wednesday, 19 August
Light rain. High 74°, low 65°.
Pressure29.85 inHg
Wind6.7 mph E
Humidity71%
Visibility—
Dew point62°
Thu, 2074° / 62°0.01
74 °
Randolph, Thursday, 20 August
Light rain. High 74°, low 62°.
Pressure30.00 inHg
Wind8.3 mph E
Humidity69%
Visibility—
Dew point59°
Fri, 2173° / 62°0.87
73 °
Randolph, Friday, 21 August
Heavy rain. High 73°, low 62°.
Pressure30.00 inHg
Wind10 mph SW
Humidity61%
Visibility—
Dew point57°
Sat, 2276° / 66°1.43
76 °
Randolph, Saturday, 22 August
Heavy rain. High 76°, low 66°.
Pressure29.77 inHg
Wind11.3 mph S
Humidity89%
Visibility—
Dew point67°
Sun, 2371° / 58°0
71 °
Randolph, Sunday, 23 August
Mostly clear. High 71°, low 58°.
Pressure29.80 inHg
Wind14.3 mph W
Humidity53%
Visibility—
Dew point47°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2476° / 62°0.08
76 °
Randolph, Monday, 24 August
Climate normal for this date — 60-year average.
Average high76°
Average low62°
Average precipitation0.08 in
Chance of precipitation30%
Record high89° (1998)
Record low53° (1971)
Tue, 2576° / 63°0.09
76 °
Randolph, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high76°
Average low63°
Average precipitation0.09 in
Chance of precipitation28%
Record high92° (1969)
Record low54° (1971)
Wed, 2678° / 63°0.06
78 °
Randolph, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high78°
Average low63°
Average precipitation0.06 in
Chance of precipitation15%
Record high90° (2021)
Record low51° (1981)
Thu, 2777° / 64°0.07
77 °
Randolph, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high77°
Average low64°
Average precipitation0.07 in
Chance of precipitation28%
Record high92° (1993)
Record low52° (2019)
Fri, 2877° / 64°0.11
77 °
Randolph, Friday, 28 August
Climate normal for this date — 60-year average.
Average high77°
Average low64°
Average precipitation0.11 in
Chance of precipitation35%
Record high93° (2018)
Record low55° (1986)
Sat, 2976° / 63°0.17
76 °
Randolph, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high76°
Average low63°
Average precipitation0.17 in
Chance of precipitation25%
Record high95° (2018)
Record low49° (1982)
Sun, 3077° / 63°0.15
77 °
Randolph, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high77°
Average low63°
Average precipitation0.15 in
Chance of precipitation22%
Record high89° (1973)
Record low49° (1965)
Mon, 3176° / 62°0.07
76 °
Randolph, Monday, 31 August
Climate normal for this date — 60-year average.
Average high76°
Average low62°
Average precipitation0.07 in
Chance of precipitation23%
Record high89° (2010)
Record low49° (1965)
Tue, 0175° / 62°0.06
75 °
Randolph, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high75°
Average low62°
Average precipitation0.06 in
Chance of precipitation22%
Record high90° (2010)
Record low52° (1975)
Wed, 0274° / 61°0.17
74 °
Randolph, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high74°
Average low61°
Average precipitation0.17 in
Chance of precipitation25%
Record high91° (2010)
Record low51° (2017)
Thu, 0374° / 61°0.14
74 °
Randolph, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high74°
Average low61°
Average precipitation0.14 in
Chance of precipitation33%
Record high93° (2018)
Record low51° (1967)
Fri, 0475° / 61°0.12
75 °
Randolph, Friday, 4 September
Climate normal for this date — 60-year average.
Average high75°
Average low61°
Average precipitation0.12 in
Chance of precipitation22%
Record high87° (1973)
Record low52° (1987)
Sat, 0574° / 61°0.07
74 °
Randolph, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high74°
Average low61°
Average precipitation0.07 in
Chance of precipitation17%
Record high89° (2018)
Record low50° (1994)
Sun, 0674° / 61°0.15
74 °
Randolph, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high74°
Average low61°
Average precipitation0.15 in
Chance of precipitation35%
Record high94° (2018)
Record low49° (1965)
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 Randolph, 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 Randolph, 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.