Monthly outlook for Townsend Harbor, MA: average high 59.6°, average low 44°. That is 0.5° above the climate normal for October. Precipitation is expected on 2 days (about 1.3 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 24 October (73°), the coolest 28 October (31.7°).
59.6°/44°
Average high / low
+0.5°
Above normal
2 / 5
Wet days / normal
1.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 October – 22 October
60.2°
59.8°
+0.2°
23 October – 1 November
58.6°
55.9°
+1.5°
2 November – 11 November
at normal
52.6°
—
October records over 66 years
85.8°5 October 2007All-time high
23.4°31 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Groton (6 mi).
Wed, 1467° / 58°0.01
67 °
Townsend Harbor, Wednesday, 14 October
Light rain. High 67°, low 58°.
Pressure29.80 inHg
Wind12.6 mph W
Humidity64%
Visibility6.2 mi
Dew point56°
Thu, 1560° / 46°0
60 °
Townsend Harbor, Thursday, 15 October
Overcast. High 60°, low 46°.
Pressure30.21 inHg
Wind6.4 mph N
Humidity45%
Visibility6.2 mi
Dew point34°
Fri, 1665° / 48°1.07
65 °
Townsend Harbor, Friday, 16 October
Rain. High 65°, low 48°.
Pressure29.59 inHg
Wind8.5 mph SE
Humidity99%
Visibility2.6 mi
Dew point51°
Sat, 1746° / 36°0
46 °
Townsend Harbor, Saturday, 17 October
Mostly clear. High 46°, low 36°.
Pressure29.91 inHg
Wind18.9 mph NW
Humidity59%
Visibility—
Dew point31°
Sun, 1856° / 33°0
56 °
Townsend Harbor, Sunday, 18 October
Clear. High 56°, low 33°.
Pressure30.36 inHg
Wind10.7 mph W
Humidity54%
Visibility—
Dew point31°
Mon, 1957° / 36°0
57 °
Townsend Harbor, Monday, 19 October
Overcast. High 57°, low 36°.
Pressure30.56 inHg
Wind6.4 mph S
Humidity73%
Visibility—
Dew point40°
Tue, 2067° / 47°0
67 °
Townsend Harbor, Tuesday, 20 October
Partly cloudy. High 67°, low 47°.
Pressure30.42 inHg
Wind5.5 mph W
Humidity49%
Visibility—
Dew point41°
Wed, 2168° / 48°0
68 °
Townsend Harbor, Wednesday, 21 October
Clear. High 68°, low 48°.
Pressure30.36 inHg
Wind6.1 mph N
Humidity56%
Visibility—
Dew point46°
Thu, 2256° / 44°0
56 °
Townsend Harbor, Thursday, 22 October
Overcast. High 56°, low 44°.
Pressure30.42 inHg
Wind4.5 mph N
Humidity76%
Visibility—
Dew point43°
Fri, 2364° / 47°0
64 °
Townsend Harbor, Friday, 23 October
Overcast. High 64°, low 47°.
Pressure30.30 inHg
Wind12 mph SW
Humidity84%
Visibility—
Dew point50°
Sat, 2473° / 56°0
73 °
Townsend Harbor, Saturday, 24 October
Mostly clear. High 73°, low 56°.
Pressure29.88 inHg
Wind13.5 mph NW
Humidity64%
Visibility—
Dew point55°
Sun, 2561° / 48°0
61 °
Townsend Harbor, Sunday, 25 October
Clear. High 61°, low 48°.
Pressure29.94 inHg
Wind11.1 mph NW
Humidity51%
Visibility—
Dew point38°
Mon, 2652° / 41°0
52 °
Townsend Harbor, Monday, 26 October
Overcast. High 52°, low 41°.
Pressure29.91 inHg
Wind12.9 mph NW
Humidity51%
Visibility—
Dew point33°
Tue, 2747° / 35°0
47 °
Townsend Harbor, Tuesday, 27 October
Overcast. High 47°, low 35°.
Pressure30.09 inHg
Wind11.2 mph NW
Humidity47%
Visibility—
Dew point24°
Wed, 2854° / 32°0
54 °
Townsend Harbor, Wednesday, 28 October
Overcast. High 54°, low 32°.
Pressure29.91 inHg
Wind8.2 mph SW
Humidity51%
Visibility—
Dew point30°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2954° / 40°0.15
54 °
Townsend Harbor, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.15 in
Chance of precipitation28%
Record high71° (1989)
Record low29° (1965)
Fri, 3054° / 39°0.16
54 °
Townsend Harbor, Friday, 30 October
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.16 in
Chance of precipitation28%
Record high71° (1989)
Record low24° (2020)
Sat, 3155° / 39°0.09
55 °
Townsend Harbor, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.09 in
Chance of precipitation22%
Record high77° (2024)
Record low23° (2020)
Sun, 0156° / 40°0.12
56 °
Townsend Harbor, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high56°
Average low40°
Average precipitation0.12 in
Chance of precipitation30%
Record high75° (2024)
Record low29° (2011)
Mon, 0255° / 40°0.09
55 °
Townsend Harbor, Monday, 2 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.09 in
Chance of precipitation28%
Record high74° (1982)
Record low26° (2011)
Tue, 0355° / 40°0.17
55 °
Townsend Harbor, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.17 in
Chance of precipitation37%
Record high72° (2017)
Record low25° (2002)
Wed, 0454° / 39°0.04
54 °
Townsend Harbor, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.04 in
Chance of precipitation22%
Record high73° (1987)
Record low27° (2002)
Thu, 0554° / 39°0.15
54 °
Townsend Harbor, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.15 in
Chance of precipitation32%
Record high75° (2022)
Record low28° (1965)
Fri, 0652° / 40°0.13
52 °
Townsend Harbor, Friday, 6 November
Climate normal for this date — 60-year average.
Average high52°
Average low40°
Average precipitation0.13 in
Chance of precipitation35%
Record high76° (2024)
Record low27° (2012)
Sat, 0752° / 38°0.05
52 °
Townsend Harbor, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.05 in
Chance of precipitation23%
Record high73° (2020)
Record low26° (1962)
Sun, 0851° / 37°0.09
51 °
Townsend Harbor, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.09 in
Chance of precipitation23%
Record high71° (2020)
Record low25° (1960)
Mon, 0951° / 37°0.1
51 °
Townsend Harbor, Monday, 9 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.1 in
Chance of precipitation30%
Record high72° (2020)
Record low23° (1971)
Tue, 1051° / 37°0.15
51 °
Townsend Harbor, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.15 in
Chance of precipitation38%
Record high72° (2020)
Record low22° (1992)
Wed, 1150° / 37°0.11
50 °
Townsend Harbor, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.11 in
Chance of precipitation32%
Record high72° (2020)
Record low20° (2017)
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 Townsend Harbor, 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 Townsend Harbor, 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.