Monthly outlook for Townsend Harbor, MA: average high 57.4°, average low 38.2°. That is 0.5° above the climate normal for October. Precipitation is expected on 1 day (about 0.6 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 25 October (65.2°), the coolest 29 October (31.4°).
57.4°/38.2°
Average high / low
+0.5°
Above normal
1 / 5
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
19 October – 28 October
59.4°
57.6°
+1°
29 October – 7 November
54.2°
54.1°
+0.1°
8 November – 17 November
at normal
48.8°
—
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).
Tue, 2065° / 38°0
65 °
Townsend Harbor, Tuesday, 20 October
Clear. High 65°, low 38°.
Pressure30.27 inHg
Wind10.4 mph NE
Humidity39%
Visibility6.2 mi
Dew point37°
Wed, 2156° / 36°0
56 °
Townsend Harbor, Wednesday, 21 October
Mostly clear. High 56°, low 36°.
Pressure30.27 inHg
Wind10.2 mph NE
Humidity52%
Visibility6.2 mi
Dew point34°
Thu, 2262° / 40°0
62 °
Townsend Harbor, Thursday, 22 October
Clear. High 62°, low 40°.
Pressure29.88 inHg
Wind10.8 mph N
Humidity35%
Visibility6.2 mi
Dew point27°
Fri, 2350° / 38°0
50 °
Townsend Harbor, Friday, 23 October
Partly cloudy. High 50°, low 38°.
Pressure30.15 inHg
Wind13.8 mph N
Humidity56%
Visibility6.2 mi
Dew point28°
Sat, 2458° / 36°0
58 °
Townsend Harbor, Saturday, 24 October
Clear. High 58°, low 36°.
Pressure30.42 inHg
Wind9.1 mph NW
Humidity49%
Visibility—
Dew point30°
Sun, 2565° / 37°0
65 °
Townsend Harbor, Sunday, 25 October
Clear. High 65°, low 37°.
Pressure30.53 inHg
Wind6.2 mph W
Humidity37%
Visibility—
Dew point29°
Mon, 2663° / 43°0
63 °
Townsend Harbor, Monday, 26 October
Overcast. High 63°, low 43°.
Pressure30.18 inHg
Wind8.7 mph W
Humidity53%
Visibility—
Dew point42°
Tue, 2757° / 48°0
57 °
Townsend Harbor, Tuesday, 27 October
Overcast. High 57°, low 48°.
Pressure30.15 inHg
Wind6 mph SW
Humidity59%
Visibility—
Dew point42°
Wed, 2856° / 39°0
56 °
Townsend Harbor, Wednesday, 28 October
Overcast. High 56°, low 39°.
Pressure29.85 inHg
Wind10.5 mph W
Humidity65%
Visibility—
Dew point39°
Thu, 2946° / 31°0
46 °
Townsend Harbor, Thursday, 29 October
Clear. High 46°, low 31°.
Pressure29.91 inHg
Wind13.6 mph W
Humidity34%
Visibility—
Dew point14°
Fri, 3048° / 32°0
48 °
Townsend Harbor, Friday, 30 October
Clear. High 48°, low 32°.
Pressure30.12 inHg
Wind9.8 mph W
Humidity35%
Visibility—
Dew point15°
Sat, 3155° / 36°0
55 °
Townsend Harbor, Saturday, 31 October
Clear. High 55°, low 36°.
Pressure30.21 inHg
Wind12 mph W
Humidity46%
Visibility—
Dew point29°
Sun, 0157° / 33°0
57 °
Townsend Harbor, Sunday, 1 November
Clear. High 57°, low 33°.
Pressure30.50 inHg
Wind7.8 mph SW
Humidity53%
Visibility—
Dew point31°
Mon, 0263° / 47°0
63 °
Townsend Harbor, Monday, 2 November
Overcast. High 63°, low 47°.
Pressure30.24 inHg
Wind7.6 mph SW
Humidity51%
Visibility—
Dew point39°
Tue, 0357° / 47°0.57
57 °
Townsend Harbor, Tuesday, 3 November
Rain. High 57°, low 47°.
Pressure30.09 inHg
Wind8.2 mph E
Humidity88%
Visibility—
Dew point45°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Thu, 1249° / 36°0.13
49 °
Townsend Harbor, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.13 in
Chance of precipitation37%
Record high72° (2022)
Record low23° (1976)
Fri, 1347° / 34°0.15
47 °
Townsend Harbor, Friday, 13 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.15 in
Chance of precipitation38%
Record high68° (1964)
Record low16° (2019)
Sat, 1447° / 34°0.12
47 °
Townsend Harbor, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.12 in
Chance of precipitation25%
Record high65° (1973)
Record low9° (1986)
Sun, 1548° / 34°0.12
48 °
Townsend Harbor, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.12 in
Chance of precipitation37%
Record high72° (1993)
Record low19° (1967)
Mon, 1648° / 34°0.15
48 °
Townsend Harbor, Monday, 16 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.15 in
Chance of precipitation25%
Record high66° (2005)
Record low13° (1967)
Tue, 1747° / 32°0.13
47 °
Townsend Harbor, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.13 in
Chance of precipitation30%
Record high64° (2006)
Record low11° (1972)
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.