Monthly outlook for Black Rock, MA: average high 58.2°, average low 46.4°. That is 0.4° above the climate normal for October. Precipitation is expected on 3 days (about 0.7 inches), against a normal of 4 days and 2.0 inches. The warmest day looks like 30 October (70.6°), the coolest 18 October (30.8°).
58.2°/46.4°
Average high / low
+0.4°
Above normal
3 / 4
Wet days / normal
0.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
18 October – 27 October
55°
58.3°
-1.9°
28 October – 6 November
63.5°
55.4°
+4.5°
7 November – 16 November
at normal
50.8°
—
October records over 66 years
82.4°5 October 2007All-time high
28.6°31 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Quincy (10 mi).
Mon, 1954° / 37°0
54 °
Black Rock, Monday, 19 October
Overcast. High 54°, low 37°.
Pressure30.45 inHg
Wind10.9 mph NE
Humidity72%
Visibility4.6 mi
Dew point44°
Tue, 2056° / 44°0
56 °
Black Rock, Tuesday, 20 October
Overcast. High 56°, low 44°.
Pressure30.24 inHg
Wind18.6 mph NE
Humidity67%
Visibility6.2 mi
Dew point45°
Wed, 2154° / 49°0
54 °
Black Rock, Wednesday, 21 October
Overcast. High 54°, low 49°.
Pressure30.24 inHg
Wind21 mph NE
Humidity79%
Visibility6.2 mi
Dew point43°
Thu, 2259° / 45°0
59 °
Black Rock, Thursday, 22 October
Clear. High 59°, low 45°.
Pressure29.94 inHg
Wind16.8 mph NW
Humidity65%
Visibility—
Dew point39°
Fri, 2352° / 43°0
52 °
Black Rock, Friday, 23 October
Mostly clear. High 52°, low 43°.
Pressure30.24 inHg
Wind16.6 mph N
Humidity58%
Visibility—
Dew point33°
Sat, 2448° / 41°0
48 °
Black Rock, Saturday, 24 October
Clear. High 48°, low 41°.
Pressure30.68 inHg
Wind11.9 mph N
Humidity47%
Visibility—
Dew point27°
Sun, 2558° / 39°0
58 °
Black Rock, Sunday, 25 October
Overcast. High 58°, low 39°.
Pressure30.47 inHg
Wind13 mph SW
Humidity53%
Visibility—
Dew point35°
Mon, 2660° / 50°0.04
60 °
Black Rock, Monday, 26 October
Light rain. High 60°, low 50°.
Pressure30.24 inHg
Wind10.5 mph W
Humidity59%
Visibility—
Dew point41°
Tue, 2756° / 46°0
56 °
Black Rock, Tuesday, 27 October
Overcast. High 56°, low 46°.
Pressure30.27 inHg
Wind14.6 mph NW
Humidity52%
Visibility—
Dew point35°
Wed, 2855° / 41°0
55 °
Black Rock, Wednesday, 28 October
Mostly clear. High 55°, low 41°.
Pressure30.45 inHg
Wind10.9 mph SW
Humidity29%
Visibility—
Dew point17°
Thu, 2965° / 48°0.13
65 °
Black Rock, Thursday, 29 October
Light rain. High 65°, low 48°.
Pressure30.15 inHg
Wind14.5 mph S
Humidity63%
Visibility—
Dew point46°
Fri, 3071° / 60°0.5
71 °
Black Rock, Friday, 30 October
Rain. High 71°, low 60°.
Pressure29.91 inHg
Wind17.6 mph S
Humidity87%
Visibility—
Dew point60°
Sat, 3164° / 56°0
64 °
Black Rock, Saturday, 31 October
Clear. High 64°, low 56°.
Pressure30.15 inHg
Wind6.5 mph E
Humidity67%
Visibility—
Dew point50°
Sun, 0169° / 59°0.09
69 °
Black Rock, Sunday, 1 November
Light rain. High 69°, low 59°.
Pressure29.97 inHg
Wind10.2 mph SW
Humidity89%
Visibility—
Dew point65°
Mon, 0259° / 51°0
59 °
Black Rock, Monday, 2 November
Overcast. High 59°, low 51°.
Pressure30.24 inHg
Wind9.9 mph NW
Humidity53%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0356° / 43°0.2
56 °
Black Rock, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high56°
Average low43°
Average precipitation0.2 in
Chance of precipitation33%
Record high73° (2017)
Record low29° (2002)
Wed, 0455° / 42°0.05
55 °
Black Rock, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high55°
Average low42°
Average precipitation0.05 in
Chance of precipitation23%
Record high72° (1987)
Record low28° (2002)
Thu, 0555° / 43°0.15
55 °
Black Rock, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high55°
Average low43°
Average precipitation0.15 in
Chance of precipitation38%
Record high74° (2022)
Record low30° (1965)
Fri, 0653° / 43°0.13
53 °
Black Rock, Friday, 6 November
Climate normal for this date — 60-year average.
Average high53°
Average low43°
Average precipitation0.13 in
Chance of precipitation38%
Record high75° (2024)
Record low31° (2012)
Sat, 0753° / 41°0.06
53 °
Black Rock, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high53°
Average low41°
Average precipitation0.06 in
Chance of precipitation28%
Record high74° (2022)
Record low29° (1962)
Sun, 0852° / 40°0.12
52 °
Black Rock, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high52°
Average low40°
Average precipitation0.12 in
Chance of precipitation35%
Record high66° (1996)
Record low29° (1960)
Mon, 0952° / 40°0.11
52 °
Black Rock, Monday, 9 November
Climate normal for this date — 60-year average.
Average high52°
Average low40°
Average precipitation0.11 in
Chance of precipitation33%
Record high69° (2020)
Record low26° (2019)
Tue, 1053° / 40°0.16
53 °
Black Rock, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.16 in
Chance of precipitation40%
Record high72° (2020)
Record low26° (1995)
Wed, 1152° / 40°0.13
52 °
Black Rock, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high52°
Average low40°
Average precipitation0.13 in
Chance of precipitation37%
Record high71° (2022)
Record low24° (2017)
Thu, 1250° / 39°0.14
50 °
Black Rock, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high50°
Average low39°
Average precipitation0.14 in
Chance of precipitation40%
Record high73° (2022)
Record low26° (2017)
Fri, 1349° / 37°0.18
49 °
Black Rock, Friday, 13 November
Climate normal for this date — 60-year average.
Average high49°
Average low37°
Average precipitation0.18 in
Chance of precipitation43%
Record high67° (1964)
Record low19° (2019)
Sat, 1449° / 37°0.13
49 °
Black Rock, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high49°
Average low37°
Average precipitation0.13 in
Chance of precipitation25%
Record high65° (1993)
Record low22° (1986)
Sun, 1550° / 37°0.12
50 °
Black Rock, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.12 in
Chance of precipitation37%
Record high71° (1993)
Record low22° (2018)
Mon, 1649° / 38°0.15
49 °
Black Rock, Monday, 16 November
Climate normal for this date — 60-year average.
Average high49°
Average low38°
Average precipitation0.15 in
Chance of precipitation30%
Record high66° (2001)
Record low20° (1967)
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 Black Rock, 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 Black Rock, 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.