Monthly outlook for Townsend Harbor, MA: average high 58.2°, average low 38.6°. That is 1.2° above the climate normal for October. Precipitation is expected on 3 days (about 1.5 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 26 October (68°), the coolest 5 November (30°).
58.2°/38.6°
Average high / low
+1.2°
Above normal
3 / 5
Wet days / normal
1.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
21 October – 30 October
58.9°
56.8°
+1.2°
31 October – 9 November
57°
53.5°
+1.9°
10 November – 19 November
at normal
48°
—
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).
Thu, 2266° / 41°0
66 °
Townsend Harbor, Thursday, 22 October
Clear. High 66°, low 41°.
Pressure29.97 inHg
Wind10 mph N
Humidity33%
Visibility6.2 mi
Dew point25°
Fri, 2354° / 33°0
54 °
Townsend Harbor, Friday, 23 October
Clear. High 54°, low 33°.
Pressure30.39 inHg
Wind6.9 mph N
Humidity49%
Visibility6.2 mi
Dew point26°
Sat, 2461° / 34°0
61 °
Townsend Harbor, Saturday, 24 October
Clear. High 61°, low 34°.
Pressure30.53 inHg
Wind1.9 mph NW
Humidity38%
Visibility6.2 mi
Dew point24°
Sun, 2565° / 37°0
65 °
Townsend Harbor, Sunday, 25 October
Clear. High 65°, low 37°.
Pressure30.50 inHg
Wind1.1 mph SW
Humidity33%
Visibility6.2 mi
Dew point29°
Mon, 2668° / 42°0
68 °
Townsend Harbor, Monday, 26 October
Clear. High 68°, low 42°.
Pressure30.33 inHg
Wind8.7 mph W
Humidity32%
Visibility—
Dew point30°
Tue, 2757° / 39°0
57 °
Townsend Harbor, Tuesday, 27 October
Partly cloudy. High 57°, low 39°.
Pressure30.33 inHg
Wind7.8 mph N
Humidity52%
Visibility—
Dew point37°
Wed, 2848° / 37°0
48 °
Townsend Harbor, Wednesday, 28 October
Overcast. High 48°, low 37°.
Pressure30.42 inHg
Wind4.1 mph S
Humidity68%
Visibility—
Dew point33°
Thu, 2965° / 42°0.12
65 °
Townsend Harbor, Thursday, 29 October
Light rain. High 65°, low 42°.
Pressure29.80 inHg
Wind16.6 mph W
Humidity98%
Visibility—
Dew point53°
Fri, 3047° / 33°0.02
47 °
Townsend Harbor, Friday, 30 October
Light rain. High 47°, low 33°.
Pressure29.85 inHg
Wind16.5 mph W
Humidity43%
Visibility—
Dew point20°
Sat, 3153° / 35°0.02
53 °
Townsend Harbor, Saturday, 31 October
Light rain. High 53°, low 35°.
Pressure30.27 inHg
Wind8.9 mph W
Humidity55%
Visibility—
Dew point30°
Sun, 0163° / 39°0
63 °
Townsend Harbor, Sunday, 1 November
Overcast. High 63°, low 39°.
Pressure30.33 inHg
Wind12.1 mph SW
Humidity51%
Visibility—
Dew point37°
Mon, 0265° / 48°0
65 °
Townsend Harbor, Monday, 2 November
Overcast. High 65°, low 48°.
Pressure30.39 inHg
Wind5 mph W
Humidity61%
Visibility—
Dew point44°
Tue, 0362° / 52°0.7
62 °
Townsend Harbor, Tuesday, 3 November
Rain. High 62°, low 52°.
Pressure29.91 inHg
Wind11.8 mph SW
Humidity94%
Visibility—
Dew point58°
Wed, 0452° / 33°0.63
52 °
Townsend Harbor, Wednesday, 4 November
Rain. High 52°, low 33°.
Pressure30.30 inHg
Wind9.8 mph N
Humidity66%
Visibility—
Dew point31°
Thu, 0547° / 30°0
47 °
Townsend Harbor, Thursday, 5 November
Clear. High 47°, low 30°.
Pressure30.47 inHg
Wind5 mph S
Humidity53%
Visibility—
Dew point25°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Wed, 1847° / 33°0.07
47 °
Townsend Harbor, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.07 in
Chance of precipitation23%
Record high66° (1963)
Record low23° (2020)
Thu, 1946° / 32°0.06
46 °
Townsend Harbor, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.06 in
Chance of precipitation18%
Record high64° (1991)
Record low13° (1986)
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.